Covered Arc Welding Electrodes For Mild Steel

KS D7004 E4301

Covered Arc Welding ElectrodesFor Mild Steel

01

Covered Arc W

elding ElectrodesFor M

ild Steel

18

ApplicationsWelding of ship buildings, bridges, rail way cars, pressure vessels and other generalstructures.

CharacteristicsCS-200 is ilmenite type covered electrode which is designed for better weldability inparticular.As its crack resistibility and X-ray soundness are excellent, structural steels with heavy sec-tions up to about 25mm can be welded with CS-200. The penetration is deeper comparedwith high titania and lime titania type electrodes.

Notes on usage(1) Pay attention not to exceed the range of proper currents. Welding with excessive current

not only lowers X-ray soundness, but also causes increase of spatter, undercut and in-sufficient slag covering.

(2) Dry the electrodes at 70~100℃ for 30~60 minutes before use. Excessive moisture ab-sorption lowers usability and may result in some porosities.

(3) Excessive drying before use causes less penetration and overheating of the electrode.

Dia. (mm)

L (mm)

Amp.F

V&OH

2.0 2.6 3.2 4.0 4.5 5.0 6.0

300 350 350 400,450 400 400 450

35-55 50-85 80-130 120-180 145-200 170-250 230-300

30-50 40-70 60-110 100-150 115-175 130-200 -

Typical chemical composition of weld metal (%)

0.08 0.42 0.10 0.016 0.010

C Mn Si P S

Typical mechanical properties of weld metal

400(41) 470(48) 32 110(11)

YP TS EL IV N/mm2(kgf/mm2) N/mm2(kgf/mm2) % J (kgf-m)

•Approval : ABS, DNV, NK

Size & recommended current range (AC or DC ±)

•Tip Color : Green

CS-200For welding of heavy-duty structures and ship buildings, pressure vessels

AWS A5.1 E6019KS D 7004 E4301JIS Z3211 E4319


0.08 0.43 0.22 0.015 0.010

C Mn Si P S


400(41) 440(45) 33 110(11)


CS-204

ApplicationsWelding of ship hulls, vehicles, buildings and bridges.

CharacteristicsCS-204 is a high efficiency iron powder ilmenite type electrode. Its usability is good in all po-sition, and especially its slag removal and re-arcing property are excellent. CS-204 also pro-vides good X-ray soundness even if its large diameter is welded with relatively high currents.





AWS A5.1 E6019KS D 7004 E4301JIS Z3211 E4319

For highly efficient welding in all position

Dia. (mm)

L (mm)

Amp.F

V&OH


•Tip Color : Brown

2.6 3.2 4.0 4.5 5.0 6.0

350 400 450 450 450 450,550

50-85 80-130 120-180 145-200 170-250 240-310

40-70 60-110 100-150 120-180 130-200 -

Covered Arc W


ild Steel

19

ApplicationsWelding of heavy-duty structures such as ship hulls, high pressure boilers and machineryfor generating electric power.

CharacteristicsCS-207 is an ilmenite type electrode which is designed for better weldability in particular.As its crack resistibility, porosity resistibility and X-ray soundness are excellent amongilmenite type electrodes structural steels with heavy section up to about 25mm can bewelded with CS-207.

Notes on usage(1) Pay attention not to exceed the range of proper currents. Welding with excessive

current not only lowers X-ray soundness, but also causes increase of spatter, under-cut and insufficient slag covering.

(2) Dry the electrodes at 70~100℃ for 30~60 minutes before use. Excessive moistureabsorption lowers usability and may result in some porosities.

(3) Excessive drying before use causes less penetration and overheating of the electrode.(4) Medium or heavy thick plate should be welded under proper preheating and interpass

temperatures.

Dia. (mm)

L (mm)

Amp.F

V&OH


0.08 0.55 0.07 0.015 0.010

C Mn Si P S


400(41) 440(45) 32 120(12)



•Tip Color : Yellow

CS-207For welding of heavy-duty structures and high pressure boilers.

AWS A5.1 E6019KS D 7004 E4301JIS Z3211 E4319

2.6 3.2 4.0 4.5 5.0 6.0

350 350 400 400 400 450

50-85 80-130 120-180 145-200 175-250 240-310

40-70 60-110 100-150 120-180 130-200 -

Covered Arc W


ild Steel

20

Dia. (mm)

L (mm)

Amp.F

V&OH

2.0 2.6 3.2 4.0 4.5 5.0 6.0

300 350 350 400 400 400 450

35-55 50-85 80-130 120-180 145-200 170-250 230-300

30-50 40-70 60-110 100-150 115-175 130-200 -

Typical chemical composition of weld metal(%)

0.09 0.44 0.10 0.016 0.010

C Mn Si P S


400(41) 470(48) 32 110(11)


•Approval :


•Tip Color : White

ApplicationsWelding of heavy-duty structures such as ship hulls, vehicles, buildings and bridges.

CharacteristicsCS-200Z is an ilmenite type electrode of which fume generation is about 30% lower than con-ventional electrode. It is effective for use in insufficient ventilation or insufficient spaces.The usability is good as CS-200. Mechanical properties, crack resistance and X-ray sound-ness are good in all position.





CS-200ZLow Fume type electrodes for welding ofheavy-duty structures

AWS A5.1 E6019KS D 7004 E4301JIS Z3211 E4319

Covered Arc W


ild Steel

21


0.07 0.37 0.15 0.014 0.012

C Mn Si P S


420(43) 480(49) 32 110(11)


ApplicationsWelding of shipbuilding, vehicles, bridges, buildings and other general structures.

CharacteristicsLT-25 is a lime titania type electrode, whose usability is excellent in all position welding.It deposits smooth and flat bead with easy manipulation particularly in vertical and over-head positions.Mechanical properties of weld metal are excellent next to that of low hydrogen type elec-trodes.

Notes on usage(1) Pay attention not to exceed the range of proper currents. Welding with excessive cur-

rent not only lowers X-ray soundness, but also causes increase of spatter, undercutand insufficient slag covering.


Dia. (mm)

L (mm)

Amp.F

V&OH

•Approval :


•Tip Color : Orange

2.6 3.2 4.0 4.5 5.0 6.0

350 350 400 400 400 450

65-100 100-140 140-190 170-230 200-260 250-330

50-90 80-130 110-170 125-190 140-210 -

Covered Arc W


ild Steel

22

LT-25For welding of general mild steel KS D7004 E4303

JIS Z3211 E4303

Covered Arc W


ild Steel

23

LTI-25For highly efficient welding in all positions KS D7004 E4303

JIS Z3211 E4303

ApplicationsWelding of ship hulls, vehicles, machinery, buildings and bridges.

CharacteristicsLTI-25 is an iron powder lime titania type electrode which provides highly efficient weldingby high deposition rate and good re-arcing property. This is characterized by exception-ally welding speed increase, easy slag removal even from narrow grooves and outstand-ing bead appearance.


current not only lower X-ray soundness, but also causes increase of spatter, undercutand insufficient slag covering.



0.08 0.36 0.15 0.013 0.013

C Mn Si P S


410(42) 450(46) 32 120(12)


Amp.F

V&OH



2.6 3.2 4.0 4.5 5.0 6.0

350 350 400 400 400 450

50-100 90-130 140-180 160-210 190-250 250-330

50-90 80-130 110-170 125-190 140-210 -

Dia. (mm)

L (mm)

•Approval : NK

Covered Arc W


ild Steel

24

CL-100For Welding of building and pipes


0.12 0.48 0.22 0.014 0.011

C Mn Si P S


420(43) 490(50) 30 100(10)


ApplicationsWelding of pipes, buildings, storage tanks and general structures.

CharacteristicsCL-100 is a cellulose type electrode for the vertical down welding of cross-countrypipelines made particularly for root bead, hot pass, filler and capping passes. In additionlight slag formation, stable arc, good penetration and easy puddle controlling make thiselectrode an excellent choice for pipe welding.

Notes on usage(1) Pay attention not to use the currents exceeding the recommended currents, because

the proper currents for cellulose type electrodes are lower in comparison with thosefor ordinary type electrodes.

(2) As this electrode is prone to absorb moisture, store it with care.(3) Dry the electrodes at 70~100℃ for 30~60 minutes before use.

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0 6.0

300 350 350 350 400

50-75 70-110 110-155 155-200 200-245

30-70 55-105 90-140 120-180 -

•Approval : ABS

Size & recommended current range (AC or DC+)

•Tip Color : Gray

AWS A5.1 E6010KS D7004 E4311JIS Z3211 E4311

Covered Arc W


ild Steel

25

CL-101For welding of pipes and general structures

AWS A5.1 E6011KS D7004 E4311JIS Z3211 E4311

ApplicationsWelding of pipes, buildings and thin steel sheets.

CharacteristicsCL-101 is a cellulose type electrode for mild steel designed for AC power use. The strongarc force and rapid solidifications of metal facilitate welding in the vertical and overheadpositions. The arc can be directed easily in any position with light slag formation andminimum spatter loss.

Notes on usage(1) Pay attention not to use the currents exceeding the recommended currents, because

the proper currents for cellulose type electrodes are lower in comparison with thosefor ordinary type electrodes.

(2) As this electrode is prone to absorb moisture, store it with care.(3) Dry the electrodes at 70~100℃ for 30~60 minutes before use.


0.10 0.45 0.20 0.015 0.012

C Mn Si P S


410(42) 470(48) 30 110(11)


Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0 6.0

300 350 350 350 400

50-75 70-110 110-155 155-200 200-245

30-70 55-105 90-140 120-180 -

•Approval : ABS

Size & recommended current range (AC or DC +)

•Tip Color : Black

Covered Arc W


ild Steel

26

CR-12For welding of steel sheets


0.09 0.34 0.18 0.017 0.011

C Mn Si P S

ApplicationsWelding of cars, vehicles, machines and general light structural steels.

CharacteristicsCR-12 is a high titania type electrode. Its weld metal has a good bead appearance withshallow penetration. It is suitable for welding of steel sheets and general structures.





440(45) 500(51) 26

YP TS EL N/mm2(kgf/mm2) N/mm2(kgf/mm2) %

Dia. (mm)

L (mm)

Amp.F

V&OH

Size & recommended current range (AC or DC -)

•Tip Color : Blue

2.0 2.6 2.3 4.0 5.0 6.0

300 350 350 400 400 450

30-65 45-100 85-130 110-160 160-220 210-280

30-65 45-100 85-130 100-150 120-190 -

AWS A5.1 E6012KS D7004 E4313JIS Z3211 E4313

Covered Arc W


ild Steel

27

CR-13For welding of general light structural steels.

AWS A5.1 E6013KS D7004 E4313JIS Z3211 E4313

ApplicationsWelding of vehicles, machines and light structural steels. Surface dressing of heavy steelstructure.

CharacteristicsCR-13 is a high titania type electrode, whose usability is excellent in all position welding.CR-13 is especially suitable for welding of light structural steels because arc stability,slag removal and bead appearance are good and its penetration is shallow.





0.08 0.38 0.28 0.017 0.011

C Mn Si P S


430(44) 480(49) 29


Dia. (mm)

L (mm)

Amp.F

V&OH

•Approval : ABS, DNV, KR, LR, NK



2.0 2.6 3.2 4.0 5.0 6.0

300 350 350 400 400 450

35-65 45-100 60-130 105-170 150-220 200-280

30-65 45-90 60-110 100-150 125-190 -

Covered Arc W


ild Steel

28

CR-13VFor welding of steel sheets and light structures.


0.08 0.38 0.29 0.016 0.012

C Mn Si P S


440(45) 500(51) 27


ApplicationsWelding of steel sheet structures in ships, railway vehicles and cars.

CharacteristicsCR-13V is a high titania type electrode which provides goodusability in all positions, including vertical downward welding.The arc is stable with little spatter and the lustrous bead canbe obtained. CR-13V is suitable for welding steel sheets andlight structures because of shallow penetration.

Notes on usage(1) In the case of vertical downward welding, manipulate the electrode keeping its tip in

contact with mother plate as shown in the sketch.(2) Pay attention not to exceed the range of proper currents. Welding with excessive current



Dia. (mm)

L (mm)

Amp.F

V&OH

2.0 2.6 3.2 4.0 5.0

300 350 350 400 400

30-65 45-95 80-130 120-165 180-230

30-60 45-90 80-120 120-155 180-220



AWS A5.1 E6013KS D7004 E4313JIS Z3211 E4313

Covered Arc W


ild Steel

29

CR-14For highly efficient welding of steel sheets. AWS A5.1 E7014

KS D7004 E4313

ApplicationsWelding of ships, railway vehicles, cars and general structures.

CharacteristicsCR-14 is an iron powder electrode for high speed all position welding. As the contactwelding can be performed with this electrode, manipulation of electrodes is easy in hor-izontal fillet in the groove. Slag removal and bead appearance are good.





0.08 0.58 0.27 0.014 0.011

C Mn Si P S


470(48) 560(57) 29 80(8)


Dia. (mm)

L (mm)

Amp.F

V&OH

•Approval : KR, ABS, LR, DNV, NK, BV, GL, KS, JIS


•Tip Color : Gray

2.6 3.2 4.0 5.0 5.0 6.0

350 350 400 400,450 450 450

60-100 90-130 130-190 200-240 230-270 250-300

50-80 70-130 100-170 160-210 - -

Covered Arc W


ild Steel

30

LH-100For welding of heavy-duty structuresand heavy plates


0.08 0.96 0.45 0.012 0.009

C Mn Si P S


470(48) 550(56) 33 160(16)

YP TS EL IV N/mm2(kgf/mm2) N/mm2(kgf/mm2) % J (kgf-m)-20℃

ApplicationsWelding of general heavy structural steels for ships, bridges, machines and pressurevessels made of mild steel.

CharacteristicsLH-100 is a low hydrogen type electrode with excellent crack resistance, mechanicalproperties and X-ray soundness. The Welding in all position can be easily done with thegood usabilities of stable arc, slag removal and bead appearance.

Notes on usage(1) Dry the electrodes at 300~350℃ for 30~60 minutes before use.(2) Take the backstep method or strike the arc on a small steel plate prepared to prevent

blowholes at the arc starting.(3) Keep the arc as short as possible.

Dia. (mm)

L (mm)

Amp.F

V&OH



2.0 2.6 3.2 4.0 5.0 6.0

300 350 350 400 400,450 450

35-60 55-85 90-130 135-185 190-250 250-320

30-55 50-80 80-120 110-160 165-210 -

AWS A5.1 E7016KS D7004 E4316JIS Z3211 E4316

Covered Arc W


ild Steel

31

ApplicationsVertical downward welding of ships, buildings, bridges, vehicles and machines.

CharacteristicsLH-100V is a low hydrogen type electrode specifically designed for exclusive use in ver-tical downward welding and to obtain high welding efficiency in vertical welding.Deposited metal shows high crack resistance and excellent mechanical properties.

Notes on usage(1) Manipulate the electrode straight downward without weaving, contacting its tip onto

a mother plate as shown in the sketch.(2) Dry the electrodes at 300~350℃ for 30~60 minutes be-

fore use.(3) Keep the arc as short as possible.(4) Adopt the backstep method or strike the arc on a small

steel plate prepared for this particular purpose to preventblowholes at the arc starting.


0.08 0.92 0.55 0.012 0.010

C Mn Si P S


450(46) 560(57) 32 100(10)


Dia. (mm)

L (mm)

Amp. V-down

3.2 4.0 4.5 5.0 5.5

400 450 450 450 450

100-160 140-210 180-240 220-270 260-330



LH-100VFor vertical downward welding

AWS A5.1 E7048KS D7004 E4316JIS Z3211 E4316

Covered Arc W


ild Steel

32

LH-28WFor one side welding


0.08 0.86 0.64 0.012 0.010

C Mn Si P S


470(48) 560(57) 31 90(9)


ApplicationsOne side welding of pipes and general butt joints of mild steel and 50kgf/mm2 class hightensile strength steel.

CharacteristicsLH-28W is a low hydrogen type electrode for exclusive use for one side welding of pipesand general structures.Its arc stability is extremely good to perform one side welding with relatively low currents.LH-28W provides good slag detachability and smooth weld beads.

Notes on usage(1) Dry the electrodes at 300~350℃ for 30~60 minutes before use.(2) Strike the arc on a small steel plate prepared for this purpose or on the side wall of the groove.(3) Keep the arc as short as possible.(4) Reverse welds of good appearance is obtained with proper currents and optimum

root gaps (about 3mm).(5) Stop the arc after moving the crater to the side wall to the groove.

Amp.

FV&OH

One side welding

2.6 3.2 4.0 5.0

350 400 400 400

60-90 90-130 125-180 180-240

50-80 80-115 110-170 150-210

30-65 60-110 90-140 130-180



Dia. (mm)

L (mm)

AWS A5.1 E7016KS D7004 E4316JIS Z3211 E4316

Covered Arc W


ild Steel

33

ApplicationsHorizontal and flat fillet welding of ship structures, bridges, structural steels of buildingsand general structures.

CharacteristicsCF-120 is an iron powder iron oxide type electrode which is designed for exclusive usein horizontal and flat fillet welding.It is also suitable for Gravity welding, Auto-contact welding and manual welding. Arc issoft. Its slag removal, undercut resistibility and bead appearance are excellent.Highly efficient fillet welding of both small leg length and large leg length can be per-formed, because it is applicable for a wide range of speed ratio (0.8~1.8).

Notes on usage(1) Adjust the welding current to keep the proper slag covering because optimum welding

current is subject to the welding process and the surface condition of steel plates.(2) In the case of manual welding operate by contact welding.(3) In the case of Gravity welding the optimum speed ratio is 1.2~1.6.(4) Dry th electrodes at 70~100℃ for 30~60 minutes before use, because excessive

moisture absorption causes undercut and irregular beads.

Dia. (mm)

L (mm)

Leg length(mm)

Amp.Autocon

Gravity Manual

3.2 4.0 4.5 5.0 5.5 6.0 6.4 7.0

450 450,550 450,550 700 450,550 700 450,550 700 450,550 700 450,550 700 450,550 700

110-140 140-160 170-190 180-220 210-240 240-280 270-300 280-320

130-150 160-180 190-210 200-230 230-270 260-290 280-310 300-340

3.5-5.0 5.0-5.5 5.5-6.0 6.0-6.5 6.5-7.0 7.0-8.0 7.5-8.5 8.0-9.5


0.07 0.65 0.34 0.018 0.012

C Mn Si P S


400(41) 470(48) 34 80(8)



•Tip Color : Blue-Black

CF-120For highly efficient fillet welding

AWS A5.1 E6027KS D7004 E4327JIS Z3211 E4327

CF-120ZLow fume type electrode for highly efficientfillet welding


0.07 0.70 0.36 0.018 0.010

C Mn Si P S


410(42) 470(48) 32 80(8)


ApplicationsHorizontal and flat fillet welding of ships, bridges, buildings and general structures.

CharacteristicsCF-120Z is an iron powder iron oxide type electrode whose fume generation is about30-50% lower than CF-120 for exclusive use in horizontal and flat fillet welding.As CF-120Z has the same usability as that of CF-120, it has excellent usability whenbeing used for Manual weldings, Gravity welding and Auto-contact welding.Uniformity of the beads and resistibility to undercuts are good even in case of weldingzinc-rich-painted plate and/or the joint having gap. Highly efficient welding can be per-formed because it is applicable for wide range of speed ratios (0.8~1.8).

Notes on usage(1) Adjust the welding current to keep the proper slag covering because optimum welding cur-

rent is subject to the welding process and the surface condition of steel plate.(2) In case of manual welding operate by contact welding.(3) The speed ratio can be 0.8~1.8, but in case of Gravity welding, the optimum speed ratio is 1.2~1.6.(4) Dry the electrodes at 70~100℃ for 30~60 minutes before use, because excessive

moisture absorption causes undercuts and irregular beads.

Dia. (mm)

L (mm)

Amp.Autocon

Gravity Manual

3.2 4.0 4.5 5.0 5.5 6.0 6.4 7.0

450 450,550 450,550 700 450,550 700 450,550 700 450,550 700 450,550 700 450,550 700

110-140 140-160 170-190 180-220 210-240 240-280 270-300 280-320

130-150 160-180 190-210 200-230 230-270 260-290 280-310 300-340



AWS A5.1 E6027KS D7004 E4327JIS Z3211 E4327

Covered Arc W


ild Steel

34

ApplicationsHorizontal and flat fillet welding of ship buildings, structural steels of buildings, general structuresand surface dressing of multi-layer welds.

CharacteristicsCR-24 is an iron powder high titania type electrode which is designed for the purpose of obtaining highefficiency in single pass horizontal and flat welding.It has excellent arc re-striking property and slag is almost self-lifting. The bead appearance is lustrous.In case of manual welding, the applicable speed ratio is wide from 0.8 to 1.6. As its deposition efficiencyand deposition rate are high, extremely high working efficiency can be obtained.

Notes on usage(1) In the case of horizontal fillet welding, manipulate the electrode keeping

its tip in contact with mother plate as shown in the sketch.(2) In the case of horizontal fillet welding, keep the optimum speed ratio

among 1.0~1.5(3) Dry the electrodes at 70~100℃ for 30~60 minutes before use because

excessive moisture absorption causes undercuts and irregular beads.


0.08 0.70 0.35 0.018 0.012

C Mn Si P S


480(49) 560(57) 28 70(6.9)


CR-24For highly efficient fillet welding

AWS A5.1 E7024KS D7004 E4324JIS Z3211 E4324

Dia. (mm)

L (mm)

Amp. H&H-Fil.

3.2 4.0 4.5 5.0 5.5 6.0 6.4

400 450 550 450 550 450 550 450 550 450 700 450 700

100-150 140-190 170-220 200-250 230-280 250-310 280-330

•Approval : ABS



Covered Arc W


ild Steel

35

M│E│M│O

Covered Arc Welding ElectrodesFor High Tensile Strength Steel

01

Covered Arc W

elding ElectrodesFor H

igh Tensile Strength Steel

38

ApplicationsWelding of 50kgf/mm2 class high tensile strength steels ships, bridges, buildings andpressure vessels.

CharacteristicsLC-300 is the most widely used low hydrogen type covered electrode for all positionwelding of 50kgf/mm2 class high tensile strength steels.X-ray soundness and mechanical properties of the weld metal are excellent. The usabil-ities such as arc smoothness, slag removal and bead appearance are good.

Notes on usage(1) Dry the electrodes at 300~350℃ for 30~60 minutes before use.(2) Adopt the backstep method or strike the arc on a small steel plate prepared for this

particular purpose to prevent blowholes at the arc starting.(3) Keep the arc as short as possible.


0.07 0.98 0.53 0.014 0.010

C Mn Si P S


490(50) 560(57) 32 130(13)


LC-300For welding of 50kgf/mm2 class high tensilestrength steel

AWS A5.1 E7016KS D7006 E5016JIS Z3211 E4916

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0 6.0

350 350 400 400(450) 450

55-85 90-130 130-180 180-240 250-310

50-80 80-115 110-170 150-200 -

•Approval : ABS, BV, DNV, GL, KR, LR, NK


•Tip Color : Blue

Covered Arc W



39


0.07 1.02 0.52 0.012 0.009

C Mn Si P S


512(52) 594(60) 30.0 130(13)


ApplicationsWelding of 490N/mm2(50kgf/mm2) class high tensile strength steels ships, bridges,buildings and pressure vessels.

Characteristics(1) LC-300HR is the most widely used extra low hydrogen type covered electrode for all

position welding of 50kgf/mm2 class high tensile strength steels.(2) X-ray soundness and mechanical properties of the weld metal are excellent. (3) The usability such as arc smoothness, slag removal and bead appearance are good.

Notes on usage(1) Dry the electrodes at 300~350℃ for 30~60 minutes before use.(2) Adopt the back-step method or strike the arc on a small steel plate prepared for this


LC-300HRFor mild steel and 490N/mm2 class high tensilestrength steel Extra Low Hydrogen

Dia.mm(in)

L (mm)

Amp.F

V & OHO.H

2.6 3.2 4.0 5.0

350 350 400 400(450)

55-85 90-130 130-180 180-240

50-80 80-115 110-170 150-220

Size & recommended current range (DC ±)

AWS A5.1 E7016 H4RKS D 7006 E5016JIS Z 3211 E4916 H5

Covered Arc W



40

LC-300ZLow fume type for welding of 50kgf/mm2 class hightensile strength steel


0.07 0.95 0.52 0.013 0.009

C Mn Si P S


480(49) 560(57) 31 130(13)


ApplicationsWelding of 50kgf/mm2 class high tensile strength steels in ships, bridges, buildings andpressure vessels.

CharacteristicsLC-300Z is low hydrogen type electrode whose fume generation is 20~30% lower thanconventional low hydrogen type electrodes for all-position welding of 50kgf/mm2 classhigh tensile strength steels.X-ray soundness and mechanical properties of the weld metal are excellent. The usabil-ities such as arc smoothness, slag removal and bead appearance are good.

Notes on usage(1) Dry the electrodes at 350~400℃ for about one hour before use.(2) Adopt the backstep method or strike the arc on a small steel plate prepared for this


Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0 6.0

350 350 400 400(450) 450

55-85 90-130 130-180 180-240 250-310

50-80 80-115 110-170 150-200 -



AWS A5.1 E7016KS D7006 E5016JIS Z3211 E4916

Covered Arc W



41

ApplicationsWelding of 50kgf/mm2 class high tensile strength steels in ships, bridges, buildings andpressure vessels.

CharacteristicsLC-300L is an extra low hydrogen type electrode with good crack resistibility. Due to ex-cellent X-ray soundness and mechanical properties, it is suitable for thicker plate.

Notes on usage(1) Dry the electrodes at 350~400℃ for about one hour before use.(2) Adopt backstep method or strike the arc on a small steel plate prepared for this par-

ticular purpose to prevent blowholes at the arc starting.(3) Keep the arc as short as possible.


0.07 0.96 0.54 0.013 0.009

C Mn Si P S


500(51) 580(59) 31 140(14)


LC-300LExtra low hydrogen type for welding of 50kgf/mm2

class high tensile strength steel

AWS A5.1 E7016KS D7006 E5016JIS Z3211 E4916

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0 6.0

350 350 400 400(450) 450

55-85 90-130 130-180 180-240 250-310

50-80 80-115 110-170 150-200 -


•Tip Color : Silver

ApplicationsVertical downward welding of ships, buildings and bridges.

CharacteristicsLC-300V is a low hydrogen type electrode for exclusively vertical downward welding Me-chanical properties and crack resistibility of weld metal are good and slag is self-lifting.As higher amperage can be used, the efficiency of vertical welding is remarkably im-proved compared with vertical upward welding.

Notes on usage(1) Manipulate the electrode straight downward without weaving and press its tip against

the mother plate as shown in the sketch.(2) Dry the electrodes at 350~400℃ for about 60 minutes before use.(3) Adopt back step method or strike the arc on a small steel plate prepared for this par-

ticular purpose to prevent blowholes at the arc starting.


0.08 1.03 0.55 0.011 0.009

C Mn Si P S


500(51) 580(57) 28 110(11)


LC-300VFor vertical downward welding of 50kgf/mm2


AWS A5.1 E7048KS D7006 E5016JIS Z3211 E4948

V-down

Dia. (mm)

L (mm)

Amp.



3.2 4.0 4.5 5.0 5.5 6.0

400 450 450 450 450 450

100-160 140-210 180-240 220-270 260-330 310-360

Covered Arc W



42

Covered Arc W



43

Dia. (mm)

L (mm)

Amp.All Position

F&V-Down

3.2 4.0 5.0

350 400 450

110-160 160-220 -

110-160 160-220 200-260


0.08 0.74 0.32 0.010 0.007

C Mn Si P S


460(47) 540(55) 32 100(10)


•Approval : JIS, KS


•Tip Color : Red

ApplicationsTack welding of 50kgf/mm2 class high tensile strength steels in ships, bridges, buildings.

CharacteristicsLC-300T is a low hydrogen type electrode, makes easier re-arcing.Then it gives an excellent tack welding performance.When a proper welding current is set, it makes all-position welding possible includingvertical down welding.

Notes on usage(1) Dry the electrodes at 300~350℃ for 30~60 minutes before use.(2) Adopt backstep method or strike the arc on a small steel plate prepared for this par-


LC-300TFor tack welding of 50kgf/mm2 class hightensile strength steel

AWS A5.1 E7048KS D7006 E5016JIS Z3211 E4948

Covered Arc W



44


0.07 0.96 0.61 0.013 0.007

C Mn Si P S


470(48) 560(57) 32 130(13)


ApplicationsWelding of 50kgf/mm2 class high tensile strength steel of ships, bridges and pressurevessels.

CharacteristicsLC-318 is iron powder low hydrogen type electrode for all-position welding. Its usabilityis the best with direct current application as well as alternating current application.

Notes on usage(1) Dry the electrodes at 300~350℃ for 30~60 minutes before use.(2) Adopt back step method or strike the arc on a small steel plate prepared for this par-


Dia. (mm)

L (mm)

Amp.F

V&OH

•Approval : ABS, BV, DNV, LR, NK


•Tip Color : Pink

2.6 3.2 4.0 5.0 5.5 6.0

350 350 400 450 400 450 450 450

60-100 90-130 130-190 200-240 230-270 250-300

50-80 70-130 100-170 160-210 - -

LC-318For high efficient welding of 50kgf/mm2


AWS A5.1 E7018KS D7006 E5016JIS Z3211 E4916

Covered Arc W



45


0.07 1.02 0.52 0.012 0.009

C Mn Si P S


512(52) 594(60) 30.0 130(13)


ApplicationsWelding of 490N/mm2(50kgf/mm2) class high tensile strength steels ships, bridges,buildings and pressure vessels.

Characteristics1) LC-300HR is the most widely used extra low hydrogen type covered electrode for all

position welding of 50kgf/mm2 class high tensile strength steels.(2) X-ray soundness and mechanical properties of the weld metal are excellent. (3) The usability such as arc smoothness, slag removal and bead appearance are good.



Dia.mm(in)

L (mm)

Amp.

Size & recommended current range (DC +)


LC-318HRFor mild steel and 490N/mm2 class high tensilestrength steel Extra Low Hydrogen

AWS A5.1 E7016 H4RKS D 7006 E5016JIS Z 3211 E4916 H5

2.6 3.2 4.0 5.0

350 350 400 400(450)

55-85 90-130 130-180 180-240

50-80 80-115 110-170 150-220

F

V & OHO.H

Covered Arc W



46

ApplicationsFlat and horizontal fillet welding of 50kgf/mm2 class high tensile strength steel for struc-tures, large size steel castings and strength members of ship hulls.

CharacteristicsLC-328 is an iron powder low hydrogen type electrode for exclusive use in flat and hor-izontal fillet welding.Its deposition rate is extremely high, and its slag removal is also good. Therefore, oper-ation time is shortened and it is very efficient. Its paint resistibility is excellent.It is applicable for multi-layer fillet welding as well as single layer fillet welding.

Notes on usage(1) Dry the electrodes at 250~300℃ for 30~60 minutes before use.(2) Adopt backstep method or strike the arc on a small steel plate prepared for this par-

ticular purpose to prevent blowholes at the arc starting.(3) Keep the arc as short as possible.(4) Optimum bead length/burned up electrode length ratio for gravity welding is 1.2~1.5.

Dia. (mm)

L (mm)

Amp. F&H-Fill

4.0 4.5 5.0 5.5 6.0 6.4 7.0

400, 450 550, 700 550, 700 550, 700 550, 700 550, 700 550, 700

160- 180- 200- 230- 270- 290- 320-

200 230 250 290 330 360 400


0.07 1.06 0.73 0.012 0.010

C Mn Si P S


510(52) 580(59) 30 100(10)


•Approval : KR



LC-328For highly efficient welding of 50kgf/mm2


AWS A5.1 E7028KS D7006 E5026JIS Z3211 E4928

Covered Arc W



47


0.07 0.92 0.48 0.015 0.008 0.13

C Mn Si P S Mo


540(55) 630(64) 29 130(13)

YP TS EL IV N/mm2(kgf/mm2) N/mm2(kgf/mm2) % J(kgf-m)-30℃

ApplicationsWelding of 55kgf/mm2 class high tensile strength steel for pressure vessels and bridgeconstructions.

CharacteristicsLC-400 is an extra low hydrogen type electrode for all-position welding, which providesgood strength property of weld metal even after post heat treatment.X-ray soundness and mechanical properties of weld metal are excellent. As the hydrogencontent of the weld metal is especially low, its crack resistibility is good.




AWS A5.1 E7016KS D7006 E5316JIS Z3211 E4916

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0 6.0

350 350 400 400(450) 450

55-85 90-130 130-180 180-240 250-310

50-80 80-115 110-170 150-200 -


•Tip Color : Red

Covered Arc W



48

Typical mechanical properties of weld metal (PWHT : 620℃×40hr)

540(55) 630(64) 28 140(14)


ApplicationsWelding of 55kgf/mm2 class high tensile strength steel in ships, buildings, bridges andpressure vessels.

CharacteristicsLC-400G is a low hydrogen type electrode for all-position welding, which provides goodstrength property of weld metal even after post weld heat treatment.The usability, X-ray soundness and mechanical properties of weld metal are excellent.




0.07 1.28 0.50 0.010 0.007 0.30

C Mn Si P S Mo

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0 6.0

350 350 400 400(500) 450

55-85 90-130 130-180 180-240 250-310

50-80 80-115 110-170 150-200 -



LC-400GFor welding of 55kgf/mm2 classhigh tensile strength steel

AWS A5.5 E8016-GKS D7006 E5316JIS Z3211 E5516-G

Covered Arc W



49

ApplicationsWelding of 55kgf/mm2 class high tensile strength steel for ships, bridges, buildings andboilers.

CharacteristicsLC-418 is an iron powder low hydrogen type electrode, and provides good usabilitywith direct current applications in all-position.The weld metal has good crack resistibility and X-ray soundness. Also it is suitable formulti-layer fillet welding in large leg length.




520(53) 620(63) 28 70(7)


LC-418For highly efficient welding of 55kgf/mm2 classhigh tensile strength steel



C Mn Si P S Cu Ni Cr

0.06 0.80 0.43 0.01 0.009 0.53 0.51 0.52

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0 6.0

350 350 400 400(450) 450

55-85 90-130 130-180 180-240 250-310

50-80 90-115 110-170 150-200 -


•Tip Color : Blue

Covered Arc W



50

ApplicationsWelding of 60kgf/mm2 class high tensile strength steel for pressure vessels, penstocks,bridges, offshore constructions, vehicles and machinery.

CharacteristicsLC-600 is an extra low hydrogen type electrode for all-position welding, which providesgood notch toughness of weld metal at low temperature.The usability and X-ray soundness of weld metal are good in all-position welding. As thehydrogen content of the weld metal is especially low, the crack resistibility is good.

Notes on usage(1) Dry the electrodes at 350~400℃ about one hour before use.(2) Adopt back step method or strike the arc on a small steel plate prepared for this particular

purpose because arc striking on base metal is in danger of initiating cracking(3) Keep the arc as short as possible.(4) Preheat at 50~150℃ before use.(5) Pay attention not to exceed proper heat-input

because excessive heat-input causes deteri-oration of impact values and yield strength ofweld metal.


570(58) 670(68) 28 150(15)




Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0 6.0

350 350 400 400 450

55-85 90-130 130-180 180-240 250-310

50-80 80-115 110-170 150-200 -

•Approval : DNV, GL




0.08 1.10 0.52 0.014 0.006 0.56 0.23

C Mn Si P S Ni Mo

<10 -

10-25 50-100

>25 100-150

Plate thickness(mm) Preheat temp.(℃ )

Covered Arc W



51

ApplicationsWelding of 60kgf/mm2 class high tensile strength steel for pressure vessels, penstocks,bridges, offshore constructions, vehicles and machinery.

CharacteristicsLC-618 is a iron powder low hydrogen type electrode for all-position welding, which pro-vides good notch toughness of weld metal at low temperature.The usuability and X-ray soundness of weld metal are good in all position welding.

Notes on usage(1) Dry the electrodes at 350~400℃ for about one hour before use.(2) Adopt back step method or strike the arc on a small steel plate prepared for this particular

purpose because arc striking on base metal is in danger of initiating cracking(3) Keep the arc as short as possible.(4) Preheat at 50~150℃ before use.(5) Pay attention not to exceed proper heat-input

because excessive heat-input causes deteri-oration of impact values and yield strength ofweld metal.

LC-618For highly efficient welding of 60kgf/mm2 class high tensile strength steel



570(58) 660(67) 23 160(16)


Dia. (mm)

L (mm)

Amp.F

V&OH

3.2 4.0 5.0 6.0

350 400 400(500) 450

90-140 140-180 180-240 220-300

70-120 120-160 150-200 -




0.07 1.40 0.40 0.011 0.009 0.52 0.32

C Mn Si P S Ni Mo

<10 -

10-25 50-100

>25 100-150

Plate thickness(mm) Preheat temp.(℃ )

Covered Arc W



52

ApplicationsWelding of 60kgf/mm2 class high tensile strength steel for pressure vessels, bridges, penstocks,vehicles, offshore constructions and machinery. Fillet tack welding of T1, HY80, HY90, steels.

CharacteristicsLC-618M is an iron powder low hydrogen type electrode which provides good usabilityin all-positions and good notch toughness at low temperature.The weld metal has good crack resistibility because of less hydrogen content.Therefore, it is also applicable for welding heavy plates.Furthermore, its X-ray performance is very good.

Notes on usage(1) Dry the electrodes at 350~400℃ for about one hour before use.(2) Adopt back step method or strike the arc on a small steel plate prepared for this particular

purpose, because arc striking on base metal is in danger of initiating cracking.(3) Keep the arc as short as possible.(4) Preheat at 80~100℃ before use. The temperature to be applied varies in accordance

with plate thickness and steel kind.(5) Pay attention not to exceed proper heat-input because excessive heat-input causes

deterioration of impact values and yield strength of weld metal.

LC-618MFor welding of 60kgf/mm2 class high tensile strength steel

AWS A5.5 E9018-MKS D7006 E5816JIS Z3211 E6218-N3M1


600(61) 680(69) 28 80(8)



0.06 1.15 0.48 0.015 0.008 1.61 0.16

C Mn Si P S Ni Mo

Dia. (mm)

L (mm)

Amp.F

V&OH

3.2 4.0 5.0 6.0

350 400 400 450

90-140 140-180 180-240 230-300

70-120 120-160 150-200 -


•Tip Color : red

Covered Arc W



53

ApplicationsWelding of 70kgf/mm2 class high tensile strength steel (WES HW63, ASTM A514 etc.) forpressure vessels, penstocks, bridges, offshore constructions and industrial machinery.

CharacteristicsLC-700 is low hydrogen type electrode for all-position welding.Its usability and X-ray soundness are very good.It provides weld metal of good notch toughness and of high crack resistibility.

Notes on usage(1) Dry the electrodes at 350~400℃ for about one hour before use and store the electrodes

at 100~150℃ after drying them with attention to keep away from moisture.(2) Adopt back step method or strike the arc on a small steel plate prepared for this particular

purpose, because arc striking on base metal is in danger of initiating cracking.(3) Keep the arc as short as possible.(4) Preheat at 100~150℃. The temperature to be applied varies in accordance with plate

thickness and kind of steel to be welded.(5) Pay attention not to exceed proper heat-input because excessive heat-input causes


LC-700For welding of 70kgf/mm2 class high tensile strength steel



660(67) 770(78) 25 130(13)



C Mn Si P S Ni Cr Mo

0.08 1.49 0.61 0.009 0.005 1.52 0.21 0.21

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0 6.0

350 350 400 400 450

55-85 90-130 130-180 180-240 250-320

50-80 80-115 110-170 150-200 -


•Tip Color : Blue black

Covered Arc W



54

ApplicationsWelding of 70kgf/mm2 class high tensile strength steel for pressure vessels, penstocks,bridges, offshore constructions and industrial machinery.

CharacteristicsLC-718 is an iron powder low hydrogen type electrode for all-position welding.Its usability and X-ray soundness are very good.It provides weld metal of good notch toughness and of high crack resistibility.

Notes on usage(1) Dry the electrodes at 350~400℃ for about one hour before use and store the electrodes

at 100~150℃ after drying them with attention to keep away from moisture.(2) Adopt back step method or strike the arc on a small steel plate prepared for this particular

purpose, because arc striking on base metal is in danger of initiating cracking.(3) Keep the arc as short as possible.(4) Preheat at 100~150℃. The temperature to be applied varies in accordance with plate

thickness and kind of steel to be welded.(5) Pay attention not to exceed proper heat input because excessive heat input causes



660(67) 730(74) 25 70(7)


LC-718For highly efficient welding of 70kgf/mm2 class high tensile strength steel




0.06 1.30 0.37 0.012 0.010 1.60 0.18 0.32

Dia. (mm)

L (mm)

Amp.F&H-Fil.V&OH

2.6 3.2 4.0 5.0 6.0

350 350 400 400 400(450)

65-90 90-130 135-185 190-250 250-320

60-90 80-120 110-170 160-210 -



Covered Arc W



55


730(74) 830(85) 22 120(12)


ApplicationsWelding of 80kgf/mm2 class high tensile strength steel for pressure vessels, penstocks,bridges, offshore constructions, industrial machinery and construction machinery.

CharacteristicsLC-800 is a low hydrogen type electrode for all-position welding and provide good X-raysoundness, notch toughness and crack resistibility.

Notes on usage(1) Dry the electrodes at 350~400℃ for about one hour before use. Store the electrodes

at 100~150℃ after drying, keeping them away from moisture.(2) Adopt back step method or strike the arc on a small steel plate prepared for this particular

purpose because arc striking on base metal is in danger of initiating cracking.(3) Keep the arc as short as possible.(4) Preheat at 120~180℃. The temperature to be applied varies in accordance with plate

thickness and kind of steel to be welded.(5) Pay attention not to exceed proper heat-input because excessive heat-input causes

deterioration of impact values and yield strength of weld metal.(6) Immediate post heating at 150~200℃ after welding is effective to prevent cracking.

LC-800For welding of 80kgf/mm2 class high tensile strength steel




0.07 1.49 0.63 0.009 0.006 1.84 0.24 0.43

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0

300 350 400 400

55-85 90-130 130-180 180-240

50-80 80-115 110-170 150-200


•Tip Color : Purple

Covered Arc W



56

ApplicationsWelding of 80kgf/mm2 class high tensile strength steel for pressure vessels, penstocks,offshore constructions and machinery.

CharacteristicsLC-118 is an iron powder low hydrogen type electrode and provides good usability withdirect current applications in all-positions.The weld metal has good crack resistibility and X-ray soundness.

Notes on usage(1) Dry the electrodes at 350~400℃ for about one hour before use.(2) Store the electrodes at 100~150℃ after drying them with attention to keep away form moisture.(3) Adopt back step method or strike the arc on a small steel plate prepared for this particular

purpose, because arc striking on base metal is in danger of initiating cracking.(4) Keep the arc as short as possible.(5) Preheat at 120~180℃. The temperature varies in accordance with plate thickness

and steel kind.(6) Pay attention not to exceed proper heat-input because excessive heat-input causes



720(73) 820(84) 23 70(7)






0.08 1.58 0.32 0.011 0.008 1.80 0.30 0.40

Dia. (mm)

L (mm)

Amp.F

V&OH

3.2 4.0 5.0 6.0

350 400 400 400(450)

90-130 135-185 190-250 250-320

80-120 110-170 - -



Covered Arc W



57


853(87) 931(95) 20 50(5)


ApplicationsWelding of 90kgf/mm2 class high tensile strength steel for penstocks, pressure vesselsand machinery.

CharacteristicsLC-128 is an iron powder low hydrogen type electrode and provides good usability withdirect current applications in all-positions.The weld metal has good crack resistibility and X-ray soundness.

Notes on usage(1) Dry the electrodes at 350~400℃ for about one hour before use.(2) Store the electrodes at 100~150℃ after drying them with attention to keep away from moisture.(3) Adopt back step method or strike the arc on a small steel plate prepared for this particular

purpose, because arc striking on base metal is in danger of initiating cracking.(4) Keep the arc as short as possible.(5) Preheat at 150~200℃. The temperature varies in accordance with plate thickness

and steel kind.(6) Pay attention not to exceed proper heat-input because excessive heat-input causes



JIS Z3211 E8318-N4C2M2AWS A5.5 E12018-M



0.06 1.80 0.45 0.010 0.009 0.64 0.41 2.0

Dia. (mm)

L (mm)

Amp.F

V&OH

3.2 4.0 5.0

350 400 400

90-130 135-185 190-250

80-120 110-170 -

•Approval : KS, JIS



Covered Arc W



58

ApplicationsEnclosed are welding of rails, steel bars and angles of 80kgf/mm2 class high tensilestrength.

CharacteristicsLC-80E is an iron powder low hydrogen type electrode for rail welding. Mechanical prop-erties of weld metal are good and bead appearance is good. As welding is always donein flat position, deviation of quality caused by the skill of welders is lowered.

Notes on usage(1) Dry the electrodes at 350~400℃ for about one hour before use.(2) The mother plate with hardening properties should be preheated.(3) LC-800 or LC-118 can be used for under laying of mother plates.


860(88) 21

YP EL N/mm2(kgf/mm2) %

LC-80EFor enclosed arc welding

JIS Z3211 E7816



0.06 1.51 0.43 0.008 0.004 1.64 0.57 0.37

Dia. (mm)

L (mm)Amp. F

4.0 5.0 6.0

400(450) 400(450) 400(450)

150-200 190-260 250-320




Covered Arc Welding ElectrodesFor Weather Proof Steel

01

Covered Arc W

elding ElectrodesFor W

eather Proof Steel

60

ApplicationsButt, fillet welding of corrosion-resistant steel at hydrochloric & sulfuric acid environmentalconditions such as thermal power plant, bridges and storage tanks etc.

Characteristics(1) LCA-300 is a low hydrogen type electrode for all-position welding 0f 50kgf/mm2 class

high tensile strength weather proof steels.(2) It provides the excellent usability s stable arc, less spattering, good bead appearance,

better slag removal, and less quantity of welding fume comparable to solid wire.




512(52) 585(60) 464(47) 30.0 146(14.8)

YP TS N/mm2(kgf/mm2) EL IV N/mm2(kgf/mm2) Room Temp. 500℃ % J(kgf-m) 0℃

LCA-300For corrosion-resistant steel at hydrochloric &sulfuric acid environmental conditions such as thermal power plant, bridges and storage tanks etc. AWS A5.1 E7016-G

Dia.mm(in)

L (mm)

Amp.F

V&OH

2.6 3.0 4.0 5.0

350 350 400 400

55-85 90-130 130-180 180-240

50-80 80-115 110-170 150-220

•Approval : KR, ABS, LR, DNV, NK, GL, BV, KS, JIS




C Mn Si P S Cu Ni

0.055 0.65 0.47 0.011 0.009 0.30 0.20

Covered Arc W


eather Proof Steel

61

ApplicationsWelding of mild steel and 50kgf/mm2 class high tensile strength weather proof steels forbuildings, bridges and cars.

CharacteristicsLCW-300 is a low hydrogen type electrode for all-position welding of 50kgf/mm2 classhigh tensile strength weather proof steels.It is suitable for welding of relatively thick plate.

Notes on usage(1) Dry the electrodes at 300~350℃ for 30~60 minutes before use.(2) Adopt the backstep method or strike the arc on a small steel plate prepared for this



510(52) 570(58) 31 180(18)


Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0 6.0

350 350 400 400(450) 450

55-85 80-130 130-180 180-240 250-310

50-80 80-115 110-170 150-200 -

•Approval : KR, ABS, LR, DNV, NK, GL, BV, KS, JIS





0.07 0.65 0.46 0.012 0.008 0.35 0.30 0.25

LCW-300For welding of 50kgf/mm2 class high tensile strength weather proof steel

AWS A5.5 E7016-GKS D7101 DA5016GJIS Z3214 DA5016G

Covered Arc W


eather Proof Steel

62

LCW-318For welding of 50kgf/mm2 class high tensilestrength weather proof steel


520(53) 580(59) 29 100(10)


ApplicationsWelding of 50kgf/mm2 class high tensile strength weather proof steel of structures, build-ing, vehicles and bridges.

CharacteristicsLCW-318 is an all position iron powder low hydrogen type electrode which exhibites highcrack resistibility and superior notch toughness of depositing weld metal. It is suitablefor welding comparatively thick plates of weather proof steel.

Notes on usage(1) Dry the electrodes at 300~350℃ for 30~60 minutes before use.(2) Adopt back step method or strike the arc on a small steel plate prepared for this par-




0.06 0.58 0.54 0.016 0.006 0.43 0.28 0.23

Dia. (mm)

L (mm)

Amp.F

V&OH

3.2 4.0 5.0 6.0

350 400 400(450) 450

90-130 130-190 200-240 250-300

70-110 100-170 160-210 -




AWS A5.5 E7018-W1KS D7101 DA5026GJIS Z3214 DA5026G

Covered Arc W


eather Proof Steel

63

ApplicationsWelding of 55kgf/mm2 class high tensile strength weather proof steels for pressure ves-sels, penstocks, bridges and rolling stock.

CharacteristicsLCW-400 is a low hydrogen type electrode for all position with satisfactory weldabilityand X-ray performance.Deposited metal shows excellent crack resistance and mechanical properties. It is suit-able for welding comparatively thick plates of weather proof steel.

Notes on usage(1) Dry the electrodes at 350~400℃ for about one hour before use.(2) Adopt back step method or strike the arc on a small steel plate prepared for this par-



520(53) 620(63) 27 130(13)



AWS A5.5 E8016-GKS D7101 DA5816WJIS Z3214 DA5816W



0.07 0.77 0.47 0.015 0.008 0.36 0.46 0.53

Dia. (mm)

L (mm)

Amp.F

V&OH

3.2 4.0 5.0 6.0

350 400 400(450) 450

90-130 130-180 180-240 250-310

80-115 110-170 150-200 -




Covered Arc W


eather Proof Steel

64



520(53) 620(63) 27 130(13)


ApplicationsWelding of 55kgf/mm2 class high tensile strength weather proof steels for bridges, struc-tures and rolling stock.

CharacteristicsLCW-418 is an all position iron powder low hydrogen type electrode which exhibites highcrack resistibility and superior notch toughness of depositing weld metal. It is suitablefor welding comparatively thick plates of weather proof steel. The mechanical propertiesof the weld metal is good.





0.06 0.8 0.50 0.017 0.007 0.39 0.54 0.55

Dia. (mm)

L (mm)

Amp.F

V&OH

3.2 4.0 5.0 6.0

350 400 400(450) 450

90-130 130-190 200-240 250-300

70-110 100-170 160-210 -




AWS A5.5 E8018-W2KS D 7101 DA5826WJIS Z3214 DA5826W

Covered Arc W


eather Proof Steel

65

ApplicationsWelding of 50kgf/mm2 class high tensile strength weather proof steel of structures, build-ings, bridges and vehicles.

CharacteristicsLCW-500 is an special type electrode for exclusive use in flat and horizontal fillet weld-ing.Its deposition rate is extremely high.




480(49) 560(57) 30 90(9)



AWS A5.5 E7028KS D7101 DA5000WJIS Z3214 DA5000W



0.06 0.88 0.24 0.012 0.008 0.48 0.24 0.50

Dia. (mm)

L (mm)

Amp. F&H fill

4.0 5.0 5.5 6.0 6.4

400 550(700) 700 700 700

180~240 200~250 230~290 270~330 270~330



M│E│M│O

Covered Arc Welding ElectrodesFor Low Temperature Service Steel

01


500(51) 610(62) 29 160(16) 130(13) -

481(49) 579(59) 31 147(15) 118(12) 620℃×Ihr SR

YP TS EL IVJ (kgf-m) PWHT N/mm2(kgf/mm2) N/mm2(kgf/mm2) % -45℃ -60℃

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0

350 350 400 400(450)

55-85 90-130 130-180 180-240

50-80 80-115 110-170 150-200

•ABS, DNV, LR




C Mn Si P S Ni Ti B

0.07 1.28 0.38 0.012 0.008 0.47 0.018 0.002

Covered Arc W

elding ElectrodesFor Low

Temperature Service Steel

68

ApplicationsWelding of 50kgf/mm2 class aluminum-killed steel for low temperature used for offshoreconstructions, LPG tankers and LPG storage tanks.

CharacteristicsLC-300NS is an extra low hydrogen type electrode for all-position welding of aluminum-killed steel used at low temperature and provides good usability.Weld metal is 0.5%Ni-Ti-B type, and has better notch toughness at -60℃ and CTODproperties at temperature down to -30℃.

Notes on usage(1) Dry the electrodes at 350~400℃ for about one hour before use.(2) Keep the arc short as possible.(3) Pay attention not to exceed proper heat-input because excessive heat-input causes

deterioration of impact values of weld metal.

LC-300NSFor welding of aluminum-killed steel forlow-temperature service

AWS A5.5 E7016-GKS D7023 DL5016-6AP0JIS Z3211 E4916-N1APL


530(54) 620(63) 30 140(14) 110(11) -

500(51) 600(61) 31 150(15) 120(12) 620℃×1hr SR


Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0

350 350 400 400

55-85 90-130 130-180 180-245

50-80 80-115 100-170 150-200




Covered Arc W



69

ApplicationsWelding of aluminum-killed steel for low temperature used for LPG tankers and LPGstorage tanks.

CharacteristicsLPA-100 is an all-position extra low hydrogen type electrode for aluminum-killed steel tobe used at low temperature.The weld metal contains about 1.6%Ni.Notch toughness of weld metal at low temperature (-40 ~ -50℃) is stable and good.

Notes on usage(1) Pay attention not to exceed proper heat-input because excessive causes deteriora-

tion of impact values of weld metal.(2) Dry the electrode at 350~400℃ for about one hour before use.(3) Adopt back step method or strike the arc on a small steel plate prepared for this par-


LPA-100For welding of aluminum-killed steel forlow-temperature service

AWS A5.5 E8016-GJIS Z3211 E5516-GAPKS D7023 DL5016-4AP1


0.06 1.10 0.54 0.010 0.010 1.65

C Mn Si P S Ni


524(53) 615(63) 32.1 119 96 As Welded

502(51) 594(61) 31.5 125 102 620 x 1hr S.R


Dia.mm(in)

L (mm)

Amp.F

V&OH

2.6 3.0 4.0 5.0 6.0

350 350 400 400(450) 450

55-85 90-130 130-180 180-245 220-300

50-80 80-115 110-170 150-200 -




C Mn Si P S Ni Ti B

0.06 1.28 0.38 0.012 0.008 1.45 0.018 0.002

Covered Arc W



70

ApplicationsWelding of aluminum-killed steel for low temperature used for LPG tankers and LPGstorage tanks.

CharacteristicsLN-100S is an all-position extra low hydrogen type electrode for aluminum-killed steel tobe used at low temperature.The weld metal contains about 1.45%Ni-TIi-B.Notch toughness of weld metal at low temperature (-50 ~ -80℃) is stable and good.


tion of impact values of weld metal.(2) Dry the electrode at 350~400℃ for about one hour before use.(3) Adopt back step method or strike the arc on a small steel plate prepared for this par-


LN-100SFor Welding of aluminum-killed steel forlow-temperature service

AWS A5.5 E8016-GJIS Z 3211 E5516-3N3 AP L

Covered Arc W



71

ApplicationsWelding of 1%Ni steel used low temperature services of 55kgf/mm2 class high tensilestrength steel such as ASTM A588 and A242 steels.

CharacteristicsLPA-118 is an iron powder low hydrogen type electrode for all-position welding. Notchtoughness at low temperature(-40℃) is excellent, because it contains more Ni comparedwith other electrodes.

Notes on usage(1) Dry the electrodes at 350~400℃ for about one hour before use.(2) Keep the arc as short as possible.(3) Adopt backstep method or strike the arc on a small steel plate prepared for this par-

ticular purpose to prevent blowholes at the arc starting.(4) Preheat at 50~100℃ depending on the kind of steel and its thickness.

LPA-118For welding of low temperature services and1%Ni steel AWS A5.5 E8018-C3


0.07 0.89 0.37 0.010 0.004 1.00

C Mn Si P S Ni


530(54) 600(61) 30 130(13)


Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0 5.5

350 350 400 400

450

450 450

60-100 90-130 130-190 200-240 230-270

50-80 70-130 100-170 160-210 -

•Approval : ABS



Covered Arc W



72

ApplicationsWelding of aluminum-killed steel and 2.5%Ni steel used for machinery and equipmentsfor low temperature.

CharacteristicsLPA-200 is an all position extra low hydrogen type electrode for aluminum-killed steeland 2.5%Ni steel used for machinery and equipments for low temperature (lowest -60℃) is obtained because the weld metal contains about 2.5%Ni.LPA-200 also provides good X-ray soundness and good usability.

Notes on usage(1) Pay attention not to exceed proper heat-input because excessive heat-input causes

deterioration of impact values of weld metal.(2) Preheat at 50~100℃. The temperature varies in accordance with the plate thickness and steel kind.(3) Dry the electrodes at 350~400℃ for about one hour before use.(4) Adopt back step method or strike the arc on a small steel plate prepared for this par-


Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0

350 350 400 400

55-85 90-130 130-180 180-240

50-80 80-120 110-170 150-200





500(51) 610(62) 30 150(15) 120(12) -

480(49) 580(59) 32 170(17) 130(13) 620℃×1hr SR



0.06 0.89 0.45 0.011 0.006 2.41

C Mn Si P S Ni

LPA-200For welding of aluminum-killed steel forlow-temperature and 2.5%Ni steel

AWS A5.5 E8016-C1KS D7023 DL5016-6AP2JIS Z3211 E5516-N5APL

Covered Arc W



73

ApplicationsWelding of 3.5% Ni steel used for LNG tankers, LNG storage tanks and ethylene pro-duction equipments to be used at about -100℃.

CharacteristicsLN-300 is an all positions extra low hydrogen type electrode for 3.5% Ni steel bo be usedat low temperature (lowest -100℃)Good notch toughness of weld metal at low temperature is obtained because the weldmetal contains about 3.5% Ni.

Notes on usage(1) Pay attention not to exceed proper heat-input because excessive heat-input causes

deterioration of impact values of weld metal.(2) Preheat at 50~100℃ and postheat at 600~620℃. The preheat temperature varies

in accordance with the plate thickness and the kind of steels.(3) Dry the electrodes at 350~400℃ for about one hour before use.(4) Adopt back step method or strike the arc on a small steel plate prepared for this par-


LN-300For welding of 3.5% Ni steel

AWS A5.5 E8016-C2KS D7023 DL5016-10AP3JIS Z3211 E4916-N7APL

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0

350 350 400 400

55-85 90-130 130-180 180-240

50-80 80-120 110-170 150-200



•Tip Color : Pink


550(66) 620(63) 31 100(10) 70(7) 620℃×1hr SR



0.04 0.42 0.32 0.010 0.009 3.53

C Mn Si P S Ni

ApplicationsWelding of LPG tankers, LPG storage tanks equipment for low-temperature service, andoffshore structures to be used at low-temperature districts.

CharacteristicsLC-318N is an iron powder-low hydrogen type covered electrode to be used in all-positionwelding of aluminum-killed steel for low-temperature service.It provides excellent notch toughness at -45℃ and good usability in direct current welding.

Notes on usage(1) Welding heat input must be controlled in order to get required impact value, since

notch toughness tends to be decreased by excessive heat input.(2) Preheating at 50~100 is needed depending upon the kind of steel and its thickness.(3) Dry the electrodes at 350~400℃ for about one hour before use.(4) Adopt the backstep method or strike the arc previously on a small steel piece to pre-

vent blowholes at the arc striking in a groove.


450(46) 530(54) 33 204(20.9) 97(9.9) -

420(43) 500(51) 34 216(22.1) 106(10.9) 620℃×1hr SR


Covered Arc W



74


0.07 1.21 0.49 0.013 0.007 0.25

C Mn Si P S Ni

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0 5.5

350 350 400, 450 400, 450 450

60-100 30-130 130-190 200-240 230-270

50-80 70-130 100-170 160-210 -



LC-318NFor welding of aluminum-killed steel forlow-temperature service

AWS A5.1 E7018-1KS D7006 D5016JIS Z3211 E4918-1

•Approval : ABS

Covered Arc Welding ElectrodesFor Low Alloy Heat Resistant Steel

01


400(41) 520(53) 32 850℃×2hr SR

YP TS EL PWHT N/mm2(kgf/mm2) N/mm2(kgf/mm2) %

Covered Arc W


Alloy Heat R

esistance Steel

76

ApplicationsWelding of 5%Cr-0.5%Mo steels such as ASTM 387 Gr. 5 used in oil refining, chemicalindustries and electric power plant.Welding of quenched and tempered high tensile strength steel for air craft parts.

CharacteristicsCM-50 is a low hydrogen type electrode for all-position welding, which provides the weldmetal containing 5%Cr-0.5%Mo.

Notes on usage(1) Dry the electrodes at 325~375℃ for about one hour before use.(2) Preheat at 250~350℃ and postheat at 730~760℃.

CM-50For welding of 5%Cr-0.5%Mo steel

AWS A5.5 E8016-B6KS D7022 DT2516JIS Z3223 DT2516


0.06 0.62 0.43 0.010 0.006 4.95 0.51

C Mn Si P S Cr Mo

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0 6.0

350 350 400 400 400

50-80 75-115 120-160 160-220 220-280

50-75 70-110 90-150 - -

•Approval : KR, JIS


•Tip Color : Silver•Approval : JIS, KS

Covered Arc W


Alloy Heat R

esistance Steel

77

ApplicationsWelding of boiler for generating electric power and pressure vessel for nuclear plant.

CharacteristicsLC-300B is an extra low hydrogen type electrode for all-position welding. Suitable forwelding of boilers and other pressure vessels for high temperature service as well asheavy dutied machinery.LC-300B is also suitable for welding of the joints where insufficient strength of weldsafter postheat treatment may possibly be occured by conventional Mn-Si type 50kgf/mm2

class electrodes.



LC-300BFor welding of high pressure boiler. (SB 49)

AWS A5.5 E7016KS D7006 E5016JIS Z3212 E4916


0.08 0.97 0.56 0.010 0.010 0.13

C Mn Si P S Mo


500(51) 600(61) 30 160(16) -

450(46) 540(55) 32 180(18) 620℃×1hr SR

YP TS EL IV PWHT N/mm2(kgf/mm2) N/mm2(kgf/mm2) % J (kgf-m)

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0 6.0

350 350 400 400(450) 450

55-85 90-130 130-180 180-240 250-310

50-80 80-115 110-170 150-200 -



Covered Arc W


Alloy Heat R

esistance Steel

78

CM-76For welding of 0.5%Mo steel

ApplicationsWelding of 0.5%Mo steel used for high temperature and high pressure boilers, chemicaland oil refining industries.

CharacteristicsCM-76 is a low hydrogen type electrode for all-position welding. which provides the weldmetal containing 0.5%Mo.

Notes on usage(1) Dry the electrodes at 325~375℃ for about one hour before use.(2) Preheat at 100~200℃ and postheat at 620~680℃.(3) Adopt back step method or strike the arc on a small steel plate prepared for this par-



0.06 0.74 0.52 0.012 0.008 0.53

C Mn Si P S Mo

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0 6.0

300 350 400 400 450

55-85 90-130 140-190 190-240 250-310

50-80 80-120 110-170 - -



•Tip Color : Blue-Black


RT 540(55) 630(64) 28 620℃×1hr SR

450 370(38) 510(52) 22

Test YP TS EL PWHT Temp N/mm2(kgf/mm2) N/mm2(kgf/mm2) %

AWS A5.5 E7016-A1KS D7022 DT1216JIS Z3223 DT1216

Covered Arc W


Alloy Heat R

esistance Steel

79

ApplicationsWelding of 0.5%Mo steel used for high temperature and high pressure boiler, pressurepiping and tubing and other pressure vessel, chemical and oil refining industries.

CharacteristicsCM-78 is an iron powder low hydrogen type electrode for all-position welding, which pro-vides the weld metal of 0.5%Mo.



CM-78For welding of 0.5%Mo steel

AWS A5.5 E7018-A1KS D7022 DT1216JIS Z3223 DT1216DIN EMoB26BS EMoB


0.06 0.75 0.50 0.015 0.008 0.50

C Mn Si P S Mo


530(54) 610(62) 29 620℃×1hr SR


Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0 6.0

350 350 400 400 450

60-80 90-130 130-180 190-240 250-310

55-80 80-120 110-170 - -



•Tip Color : Red

Covered Arc W


Alloy Heat R

esistance Steel

80

CM-86For welding of 0.5%Cr-0.5%Mo steel.

ApplicationsWelding of 0.5%Cr-0.5%Mo steel used for high temperature and high pressure boiler,chemical and oil refining industries.

CharacteristicsCM-86 is a low hydrogen type electrode for all-position welding, which provides the weldmetal of 0.5%Cr-0.5%Mo.The crack resistibility of the weld metal is excellent.


ticular purpose to prevent blowholes at the arc starting.


580(59) 670(68) 29 620℃×1hr SR


Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.5 4.0 5.0 6.0

350 350 400 400 450

55-85 90-130 130-180 190-240 250-320

50-80 80-120 110-170 - -





0.08 0.75 0.45 0.015 0.010 0.52 0.53

C Mn Si P S Cr Mo

AWS A5.5 E8016-B1

Covered Arc W


Alloy Heat R

esistance Steel

81

ApplicationsWelding of 9%Cr-1%Mo steel used for super-heater tube of high temperature and highpressure boiler, heater tube for oil refining industries.

CharacteristicsCM-90 is a low hydrogen type electrode for all-position welding, which provides the weldmetal of 9%Cr-1%Mo.

Notes on usage(1) Dry the electrodes at 325~375℃ for about one hour before use.(2) Preheat at 250~350℃ and posheat at 720~780℃.(3) Adopt back step method or strike the arc on a small steel plate prepared for this par-


CM-90For welding of 9%Cr-1%Mo steel

AWS A5.5 E8018-B8

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0

350 350 400 400

55-85 75-115 120-160 160-220

50-80 70-110 90-150 -



•Tip Color : Gray


0.07 0.48 0.33 0.015 0.009 9.51 1.14

C Mn Si P S Cr Mo


500(51) 670(68) 26 740℃×10hr SR


Covered Arc W


Alloy Heat R

esistance Steel

82

CM-96For welding of 1.25%Cr-0.5%Mo steel

ApplicationsWelding of 1.25%Cr-0.5%Mo steel used for super heater tube, steam pipes and headersof boilers for electric power plant and equipment for oil refining industry.

CharacteristicsCM-96 is a low hydrogen type electrode for all-position welding, which provides the weldmetal of 1.25%Cr-0.5%Mo.


Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0

300 350 400 400

55-85 100-140 150-190 190-240

50-80 90-130 130-170 -



•Tip Color : Light Green


0.07 0.72 0.51 0.012 0.004 1.26 0.51

C Mn Si P S Cr Mo


550(56) 640(65) 25 690℃×1hr SR

YP N/mm2(kgf/mm2) TS N/mm2(kgf/mm2) EL (%) PWHT


Covered Arc W


Alloy Heat R

esistance Steel

83

ApplicationsWelding of 1.25%Cr-0.5%Mo steel used for steam pipes of boilers for electric powerplant and repairing of cast steel, equipments for oil refining industries and high temper-ature synthetic chemical industries.

CharacteristicsCM-98 is an iron powder low hydrogen type electrode. Owing to this high work effi-ciency, it is most suitable for welding thick steam pipes and repair welding of cast steel.


CM-98For welding of 1.25%Cr-0.5%Mo steel



600(61) 690(70) 25 690℃×1hr SR



0.08 0.75 0.65 0.015 0.010 1.25 0.51

C Mn Si P S Cr Mo

Typical creep rupture strength(690℃×1hr SR)

Test Temperature 550℃

1000hrs creep rupture strength 202N/mm2(20.6kgf/mm2)

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0 6.0

300 350 400 400(450) 450

65-95 90-130 135-180 190-250 250-300

60-90 80-120 110-170 - -



CM-103For Welding of 0.25%Ni-0.2%Cr-0.5%Mo steel

ApplicationsWelding of 60kgf/mm2 class high tensile strength steel of pressure vessels, penstocks,bridges, offshore constructions

CharacteristicsCM-103 is a low hydrogen type electrode for all-position welding, which provides theweld metal of 0.25%Ni-0.2%Cr-0.5%Mo.

Notes on usage(1) Dry the electrodes at 325~375℃ for 60 minutes before use.(2) Adopt the back-step method or strike the arc on a small steel plate prepared for thisparticular purpose to prevent blowholes at the arc starting.(3) Keep the arc as short as possible.

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0 6.0

350 350 400 400(450) 450

55-85 90-130 130-180 180-240 250~300

50-80 80-115 110-170 - -



•Tip Color : Grey


0.10 1.50 0.65 0.020 0.007 0.24 0.18 0.49



560(57) 630(64) 25.0 690 x 1hr S.R

YP N/mm2(kgf/mm2) TS N/mm2(kgf/mm2) EL (%) PWHT

MIL E9016A

Covered

Arc W

elding E

lectrodes

For Low

Alloy H

eat Resistance Steel

84

ApplicationsWelding of 2.25%Cr-1%Mo steel used for super-heater tubes and steam pipes of boilersfor electric power plant and marine use, equipments for oil refining industries and hightemperature synthetic chemical industries.

CharacteristicsCM-106 is a low hydrogen type electrode for all-position welding, which provides theweld metal of 2.25%Cr-1%Mo.


CM-106For welding of 2.25%Cr-1%Mo steel


Covered

Arc W

elding E

lectrodes

For Low

Alloy H

eat Resistance Steel

85


670(68) 750(76) 23 690℃×1hr SR



0.08 0.80 0.42 0.013 0.006 2.30 1.06

C Mn Si P S Cr Mo

Typical creep rupture strength(690℃×1hr SR)

Test Temperature 550℃

1000hrs creep rupture strength 181N/mm2 18.5

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0 6.0

350 350 400 400 400(450)

55-85 90-130 140-190 190-240 240-300

50-80 75-115 100-160 - -




660(67) 740(75) 22 690℃×1hr SR



0.06 0.76 0.48 0.015 0.008 2.26 1.07

C Mn Si P S Cr Mo

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0 6.0

350 350 400 400 400(450)

55-85 90-130 140-190 190-240 240-300

50-80 80-120 110-170 - -

Size & recommended current range (AC or DC)


Covered Arc W


Alloy Heat R

esistance Steel

86

ApplicationsWelding of 2.25%Cr-1%Mo steel used for super-heater tubes and steam pipes of boilersfor electric power plant and marine use, equipments for oil refining industries and hightemperature synthetic chemical industries.

CharacteristicsCM-108 is an iron powder low hydrogen type electrode for 2.25%Cr-1%Mo steel usedfor main steam pipes etc. Suitable for highly efficient welding of thick steam pipes andrepairing of cast steel.


ticular purpose to prevent blowholes at the arc starting. (4) Keep the arc as short as possible.

CM-108For welding of 2.25%Cr-1%Mo steel


Covered Arc W


Alloy Heat R

esistance Steel

87

ApplicationsWelding of 1.25%Cr-0.5%Mo steel used for super-heater tubes and steam pipes of boil-ers for electric power plant and marine use, equipment for oil refining industries and hightemperature synthetic chemical industries.

CharacteristicsCM-93 is a low hydrogen type electrode for all-position welding, which provides the weldmetal of 1.25%Cr-0.5%Mo.


tion of impact values of weld metal.(2) Dry the electrode at 325~375℃ for about one hour before use.(2) Preheat at 150~300℃ and postheat at 670~730℃. (4) Keep the arc as short as pos-

sible.

CM-93For Welding of 1.25%Cr-0.5%Mo steel

AWS A 5.5 E8013-B2KS D 7022 DT2313JIS Z 3223 DT2313


610(62) 710(72) 21.0 690 x 1hr S.R



0.08 0.51 0.31 0.015 0.009 1.28 0.51

C Mn Si P S Cr Mo

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0 6.0

350 350 400 400(450) 450

55-85 90-130 130-180 180-240 250~300

50-80 80-115 110-170 - -

Size & recommended current range (DC±)


M│E│M│O

Covered Arc Welding ElectrodesFor Hard-surfacing

01

Covered Arc W


ard-surfacing

90

ApplicationsHard-surfacing of shafts, rollers and crane tires.

CharacteristicsCH-200 is a titania type electrode which has good usability and deposited weld metal ofgood machining property.Slag covering and slag removal are good, and bead appearance is good.Machining on the weld metal is easy with high-speed cutter and the quenching is appli-cable after machining.

Notes on usage(1) In case of hard-surfacing large size steel castings and forgings, low alloy steels or

high carbon steels, preheat at 150℃ and over.(2) Dry the electrodes at 70~100℃ for 30~60 minutes before use.

CH-200For light inter-metallic abrasion JIS Z3251 DF2A-250-R

DIN E1-250

C Mn Si Cr


0.13 0.66 0.60 1.14

Hv HRC

Typical hardness of weld metal

250 22

Dia. (mm)

L (mm)

Amp.F

V&OH

3.2 4.0 5.0 6.0

350 400 400 450

60-110 110-160 160-210 200-260

50-100 90-140 130-150 -


•Tip Color : Pink

Covered Arc W


ard-surfacing

91

ApplicationsHard-surfacing of gears, shafts, cranewheels, etc.

CharacteristicsCH-230 is a low hydrogen type electrode which has good weldability and usability anddeposits the weld metal of good machining property. (1) Slag covering and slag removal are good.(2) Quenching is applicable after machining.(3) It has good slag removal and bead appearance.

Notes on usage(1) In case of hard surfacing large size steel castings and forgings, low alloy steels or

high carbon steels, preheat at 150℃ and over.(2) Dry the electrodes at 300~350℃ for 30~60minutes before use.

CH-230For light inter-metallic abrasion JIS Z3251 DF2A-300-B

DIN E1-300

C Mn Si Cr


0.21 1.49 0.73 1.89

Hv HRC


300 30

Dia. (mm)

L (mm)

Amp.F

V&OH

3.2 4.0 5.0 6.0

350 400 400 450

60-110 110-150 150-210 200-260

50-110 90-140 130-150 -


•Tip Color : Red

Covered Arc W


ard-surfacing

92

ApplicationsHard-srufacing of shafts rollers, crane wheels and couplings.

CharacteristicsCH-50 is an electrode which has good weldability and deposits the weld metal of goodmachining property.Proper hardness can be maintained within the degrees where the machining is applicableand the quenching is possible after machining.

Notes on usage(1) Preheating is unnecessary in general.(2) In case of multi-layer build-up welding of low alloy steel and high carbon steel, preheat

at about 150℃(3) Dry the electrodes at 300~350℃ for 30~60 minutes before use.

CH-50For light inter-metallic abrasion JIS Z3251 DF2A-300-B

DIN E1-300

C Mn Si Cr


0.17 1.28 0.66 0.53

Hv HRC


300 30

Dia. (mm)

L (mm)

Amp.F

V&OH

3.2 4.0 5.0 6.0

350 400 400 450

90-130 140-180 190-240 220-300

80-120 110-170 - -



Covered Arc W


ard-surfacing

93

ApplicationsHard-surfacing of gears, shafts,cranewheels, etc.

CharacteristicsCH-60 is a low hydrogen type electrode which has good weldability and usability anddeposits the weld metal of good machining property. (1) Slag covering and slag removal are good.(2) Quenching is applicable after machining.(3) It has good slag removal and bead appearance.

Notes on usage(1) In case of hard surfacing large size steel castings and forgings, low alloy steels or

high carbon steels, preheat at 150℃ and over.(2) Dry the electrodes at 300~350℃ for 30~60 minutes before use.

CH-60For inter-metallic abrasion JIS Z3251 DF2A-350-B

DIN E1-350

C Mn Si Cr


0.24 1.39 0.67 1.13

Hv HRC


350 35

Dia. (mm)

L (mm)

Amp.F

V&OH

3.2 4.0 5.0 6.0

350 400 400 450

90-130 140-180 190-240 220-300

80-120 110-170 - -



Covered Arc W


ard-surfacing

94

ApplicationsHard-surfacing of wheels, shafts and gears.

CharacteristicsCH-350R is a titania type electrode which has good slag removal and bead appearance.It is also applicable to abrasion accompanied by moderate impact. Machining on theweld metal is applicable, and the hardness can be increased by quenching after ma-chining.

Notes on usage(1) Preheating is unnecessary in general.

However, large size casting steels and forgins, low alloy steels or high carbon steelsshould be preheated at 150℃ and over.

(2) Dry the electrodes at 70~100℃ for 30~60 minutes before use.

CH-350RFor inter-metallic abrasion JIS Z3251 DF2A-350-R

DIN E1-350

C Mn Si Cr


0.11 0.65 0.60 2.30

Hv HRC


350 35

Dia. (mm)

L (mm)

Amp.F

V&OH

3.2 4.0 5.0 6.0

350 400 400 450

90-130 140-180 190-240 220-300

80-120 110-170 - -


•Tip Color : Light Green

Covered Arc W


ard-surfacing

95

ApplicationsHard-surfacing of rollers, gears and sprockets of bulldozers.

CharacteristicsCH-350 is a low hydrogen type electrode for inter-metallic abrasion whose hardness andtoughness are balanced. It is suitable for inter-metallic abrasion and moderate impactabrasion. Machining on the weld metal is applicable, and the hardness can be increasedby quenching after machining.

Notes on usage(1) Preheating at more than 150℃ is required.(2) In case of high cooling speed, apply the preheating or postheating.(3) Dry the electrodes at 300~350℃ for 30~60 minutes before use.

CH-350For inter-metallic abrasion JIS Z3251 DF2A-350-B

DIN E1-350

Hv HRC


350 35

Dia. (mm)

L (mm)

Amp.F

V&OH

3.2 4.0 5.0 6.0

350 400 400 450

90-130 140-180 190-240 220-300

80-120 110-170 - -




0.26 1.43 0.52 1.08 0.32

C Mn Si Cr Mo

Covered Arc W


ard-surfacing

96

ApplicationsHard-surfacing of idlers, rollers and truck links of bulldozers.

CharacteristicsCH-70 is a low hydrogen type electrode for hard-surfacing machine parts which aresubjected to metal to metal abrasion or earth and sand abrasion. It is difficult to domachining.

Notes on usage(1) Preheat at 150℃ and over in general.(2) In case of multi-layer build-up welding or welding mother plates with hardening

property, under-lay with low hydrogen type electrodes for mild steel.(3) Dry the electrodes at 300~350℃ for 30~60 minutes before use.

CH-70For inter-metallic abrasion and light soil abrasion JIS Z3251 DF2B-500-B

DIN E1-50

C Mn Si Cr


0.39 1.98 0.52 2.19

Hv HRC


520 50

Dia. (mm)

L (mm)

Amp. F

3.2 4.0 5.0 6.0

350 400 400 450

90-130 140-180 190-240 220-300


•Tip Color : Light Brown

Covered Arc W


ard-surfacing

97

ApplicationsHard-surfacing of sprockets, tractor-link, idlers, crusher case etc.

CharacteristicsCH-70K is a low hydrogen type electrode depositing weld metal of martensite structure.It is suitable for light impact abrasion and soil abrasion.It is difficult to do machining under the condition as welded.

Notes on usage(1) Preheat at 150℃ and over in general.(2) It is desirable to postheat at about 600℃(3) In case of multi-layer build-up welding or welding mother plates with hardening prop-

erty, under-lay with low hydrogen type electrodes for mild steel.(4) Dry the electrodes at 300~350℃ for 30~60 minutes before use.

CH-70KFor inter-metallic abrasion JIS Z3251 DF3B-600-B

DIN E6-60

C Mn Si Cr


0.45 0.33 1.39 7.86

Hv HRC


630 57

Dia. (mm)

L (mm)

Amp. F

3.2 4.0 5.0 6.0

350 400 400 450

90-130 40-180 190-240 220-300


•Tip Color : Blue-black

Covered Arc W


ard-surfacing

98

ApplicationsHard-surfacing of cutter knives, liner, mixer-blades and casings.

CharacteristicsCH-80R is a titania type electrode which has good slag removal and bead appearance.It is suitable for soil abrasion.Machining is not applicable as welded.

Notes on usage(1) Preheat at 150℃ and over in general.(2) It is desirable to postheat at about 600℃ .(3) In case of multi-layer build-up welding or welding mother plates with hardening


CH-80RFor soil abrasion JIS Z3251 DF3B-600-R

DIN E6-60


0.42 0.65 0.89 4.53 1.58

C Mn Si Cr Mo

Hv HRC


600 55

Dia. (mm)

L (mm)

Amp. F

3.2 4.0 5.0 6.0

350 400 400 450

90-130 140-180 190-240 220-300



Covered Arc W


ard-surfacing

99


CharacteristicsCH-80 is a low hydrogen type electrode depositing weld metal of uniform martensitestructure.It is suitable for soil abrasion.Machining is not applicable as welded.

Notes on usage(1) Preheat at 150℃ and over in general.(2) It is desirable to postheat at about 600℃(3) In case of multi-layer build-up welding or welding mother plates with hardening


CH-80For soil abrasion JIS Z3251 DF3C-600-B

DIN E6-60


0.58 1.77 0.69 3.41 1.01

C Mn Si Cr Mo

Hv HRC


630 57

Dia. (mm)

L (mm)

Amp. F

3.2 4.0 5.0 6.0

350 400 400 450

90-130 140-180 190-240 220-300


•Tip Color : Blue

Covered Arc W


ard-surfacing

100

ApplicationsHard-surfacing of cutter knives, shovel-teeth and casings.

CharacteristicsCH-80K deposits the weld metal of extremely hard martensite structure which containsdispersed precipitates of carbides and borides. It is applicable to such on abrasion thata weld metal of ordinary martensite structure can not withstand.Multi-layer hard-surfacing is not applicable due to less crack resistibility because thehardness of the weld metal is extremely high.Machining is impossible on the weld metal under as-welded condition.

Notes on usage(1) Preheat at 200℃ and over in general.(2) It is desirable to apply postweld heat treatment at about 600℃.(3) Under-layer welding with low hydrogen type electrodes for mild steel is needed.(4) Dry the electrodes at 300~350℃ for 30~60 minutes before use.

CH-80KFor heavy soil abrasion JIS Z3251 DF3C-700-B

DIN E6-65

Hv HRC


700 60

Dia. (mm)

L (mm)

Amp. F

4.0 5.0 6.0

400 400 400(450)

140-180 190-240 220-300


•Tip Color : Pink


0.71 1.24 1.65 5.21 0.15 2.11

C Mn Si Cr B W

Covered Arc W


ard-surfacing

101

ApplicationsHard-surfacing of valve seats, agitator propellers and turbine blades.

CharacteristicsCH-13CR is a 13%Cr type electrode to be used for welding of the parts which requireheat, corrosion and abrasion resistance at the same time.Inter-metallic abrasion resistance at about 400℃ is excellent. Machining is not applicableas welded.

Notes on usage(1) Preheat is not necessary in general.

However, in the case of heavy constraint or low alloy steel and high carbon steel,preheat at 200℃ and over.

(2) Dry the electrodes at 300~350℃ for 30~60 minutes before use.

CH-13CRFor corrosion and high temperature abrasion

JIS Z3251 DF4A-500-B

Conditions Hv HRC


Continuous surfacing 510-580 50-54

Preheat & interpass 150 560-630 53-57

Dia. (mm)

L (mm)

Amp. F

3.2 4.0 5.0 6.0

350 400 400 450

90-130 140-180 190-240 220-300




0.26 0.72 0.50 13.2 0.89 1.05

C Mn Si Cr Ni Mo

Covered Arc W


ard-surfacing

102

ApplicationsRepairing of cutter Knives, dies and crusher jaws.

CharacteristicsCH-800M is a low hydrogen type electrode depositing weld metal of Molybdenum highspeed steel.Weld metal shows stable hardness and excellent crack resistance.Hardness can be increased by Post-weld heat treatment.

Notes on usage(1) Preheat the base metal at 300~500℃ to reduce a crack tendency, and cool slowly.(2) In the case of multi-layer build-up welding or welding mother plates with hardening


CH-800MFor heavy impact abrasion (high speed steel type)

AWS A5.13 EFe5-BJIS Z3251 DF5A-700-BDIN E4-60ST

Dia. (mm)

L (mm)

Amp. F

3.2 4.0

350 400

90-130 120-180


•Tip Color : Gray


0.82 0.56 0.95 4.58 7.05 1.35 1.90

C Mn Si Cr Mo V W


HRC 60-65 61-65 63-67

As welded PWHT

Preheat. interpass 580℃×1hr 580℃×1hr 150℃ Tempering Two times Tempering

Conditions

Covered Arc W


ard-surfacing

103

ApplicationsHard-surfacing of crusher hammers, rail crossings and crusher jaws.

CharacteristicsCH-90 is an electrode designed for abrasion resistance against heavy impact.The weld metal becomes austenitic by water cooling during welding, which has excellenttoughness and high work-hardening property.It is suitable for fill-up cavities of high manganese cast iron because of its high toughnessand crack resistance.

Notes on usage(1) Water cool the weld metal during welding.(2) Austenite type stainless steel electrodes should be used for under-laying on the base

metal other than 13%Mn steel.(3) When the base metal of 13%Mn steel is hardened, cut-off the hardened zone before

welding.(4) Dry the electrodes at 300~350℃ for 30~60 minutes before use.

CH-90For welding of 13%Mn steel JIS Z3251 DFMA-200-B

DIN E7-250K

C Mn Si


0.82 13.40 0.52

Vickers hardness (Hv)

As Welded After work-hardening


220 510

Vickers hardness (Hv)

As Welded After work-hardening


220 510

Dia. (mm)

L (mm)

Amp. F

3.2 4.0 5.0 6.0

350 400 400 450

90-130 140-180 190-240 220-300



Covered Arc W


ard-surfacing

104

ApplicationsHard-surfacing of rail crossings, 13%Mn steel and bullet proof steel plates.

CharacteristicsCH-210 is a low hydrogen type hard-surfacing electrode.Weld metal of Mn-Cr type austenitic structure is hardened by impact and shows excellenttoughness and resistance to abrasion under high temperature and impact.

Notes on usage(1) For welding of high-Mn steel, weld with water cooling or at room temperature for

interpass to prevent brittleness of mother plate by welding heat.Preheating and postheating should never be done.

(2) Use minimum currents to avoid overheating the electrode.(3) Dry the electrodes at 30~60 minutes before use.

CH-210For high temperature abrasion and impact

abrasionJIS Z3251 DFME-200-BDIN E8-200

C Mn Si Cr


0.31 13.50 0.64 14.52

Hv HRC


230 20

Dia. (mm)

L (mm)

Amp. F

3.2 4.0 5.0

350 400 400

80-130 130-180 180-230



Covered Arc W


ard-surfacing

105

ApplicationsRepairing of cutter knives, dies and press molds.

CharacteristicsCH-700R is a rutile type hard-surfacing electrode.Usability is excellent and bead appearance are good.It is suitable for repairing of high speed tool steel.

Notes on usage(1) Preheat the base metal at 300~500℃ to reduce a crack tendency, and cool slowly.(2) In the case of multi-layer build-up welding or welding mother plates with hardening


CH-700RFor heavy impact abrasion (high speed steel type)

DIN E4-UM-60-65-ST


0.56 0.09 0.58 7.25 12.9 0.65 0.017 1.86

C Mn Si Cr W V Co Mo

Dia. (mm)

L (mm)

Amp. F

3.2 4.0

350 400

90-130 120-180



HRC 59-62 60-63 64-66

As welded PWHT

Preheat. interpass 580℃×1hr 580℃×1hr 150℃ Tempering Twice Tempering

Conditions

Covered Arc W


ard-surfacing

106


CharacteristicsCH-1000 is a titania type electrode which has good slag removal and bead appearance.(1) Machining is not applicable, but only grinding.(2) It is more suitable for soil abrasion than impact abrasion.(3) It is not desirable to apply postweld heat treatment.(4) It is used at AC and DC+.

Notes on usage(1) Preheat at 100~300℃. The temperature varies in accordance with the plate thickness

and steel kind.(2) Keep the length of bead less than 50mm in the quenching part, hardening part.(3) Dry the electrodes at 300~350℃ for 30~60 minutes before use.(4) In the case of multi-lay build-up welding or welding mother plates with hardening

property, under-lay with low hydrogen type electrodes for mild steel.

CH-1000For soil abrasion

DIN E10-60C St.

Dia. (mm)

L (mm)

Amp.(A)

2.6 3.2 4.0

300 350 400

100-120 130-50 180-220


•Tip Color : black


2.3 1.2 0.6 0.023 0.013 27.6

C Mn Si P S Cr

As welded

Hv HRC


650 58

Covered Arc W


ard-surfacing

107

ApplicationsHard-surfacing of press mould, forged metal mould, tool steel and hardened part byquenching.

Characteristics(1) Lime titania type.(2) Excellent impact-resisting and wear-resisting properties at high temperature as well

as room temperature.(3) It has good slag removal and bead appearance.

Notes on usage(1) Preheat at 100~300℃. (2) Keep the length of bead less than 50mm in the quenching part, hardening part.(3) Keep the temperature of inter-pass less than 100℃.(4) In the case of multi-lay build-up welding or welding mother plates with hardening

property, under-lay with low hydrogen type electrodes for mild steel.

CD-600 For hard facing


C Si Mn P S Cr Mo W

0.43 0.72 0.20 0.018 0.009 8.30 1.51 11.50

As welded Hv HRC


Continuous surfacing 580-630 54-58

Interpass temperature max. 100℃ 590-610 55-58

Dia. (mm)

L (mm)

Amp. Flat

2.6 3.2 4.0

300 350 400

70-90 100-120 120-140


•Tip Color : black

Covered Arc W


ard-surfacing

108

0.86 0.55 0.98 30.36 4.50 Balance -

Dia.(ømm) -

Typical chemical composition of Weldin Rod (%)

C Si Mn Cr W Co

CST-6 A5.13

For welding of valve seats, forging

ECoCrA dies, crushers and screw.

Product Application and features Name AWS

Specification

for hardfacing (Stellite)

3.24.05.0

Covered Arc Welding ElectrodesFor Stainless Steel

01

Covered Arc W

elding ElectrodesFor Stainless Steel

110

ApplicationsWelding of 18%Cr-8%Ni stainless steel such as AISI (SUS) 304.

CharacteristicsNC-308 is a lime-titania type electrode for all-position welding. As its deposits austeniticweld metal which contains suitable quantity of ferrite, its crack resisitibility and weldabilityare especially good.Furthermore, its heat resistibility, corrosion resistibility and mechanical properties aregood in the as welded conditions.

Notes on usage(1) Keep the arc as short as possible and choose the welding current as low as possible.(2) Weaving width should be within two and a half times of electrode's diameter.(3) When the electrodes have absorbed moisture, dry them at 250~300℃ for 60~90

minutes before use.(4) Usually, preheat is not necessary.

NC-308For welding of 18%Cr-8%Ni stainless steel

AWS A5.4 E308-16KS D7014 E308-16JIS Z3221 ES308-16


0.06 1.10 0.72 0.020 0.006 19.70 9.90

C Mn Si P S Cr Ni


600(61) 47

TS EL N/mm2(kgf/mm2) %

Dia. (mm)

L (mm)

Amp.F

V&OH

2.0 2.6 3.2 4.0 5.0

250 300 350 350 350

30-50 50-80 70-115 100-150 150-200

25-45 45-75 65-110 95-140 -

•Approval : ABS, DNV, KR



Covered Arc W


111

ApplicationsWelding of 18%Cr-18%Ni stainless steel such as AISI (SUS) 304L.

CharacteristicsNC-308L, NC-308EL are lime-titania type electrodes for all-position welding. As its weldmetal has extra-low carbon austenitic structure which contains suitable ferrite, crackresistibility is good and intergranular corrosion resistibility is superior to that of NC-308.In the as-welded conditions the weld metal provides good corrosion resistibility and goodmechanical properties. Especially, NC-308EL is superior to intergranular corrosionresistibility of NC-308L.

Notes on usage(1) Keep the arc as short as possible.(2) Weaving width should be within two and a half times of electrode's diameter.(3) When the electrodes have absorbed moisture, dry them at 250~300℃ for 60~90

minutes before use.(4) Remove dirts such as oil and dust from the groove.

NC-308L, NC-308ELFor welding of extra-low carbon 18%Cr-8%Ni

stainless steel

AWS A5.4 E308L-16KS D7014 E308L-16JIS Z3221 ES308L-16

Dia. (mm)

L (mm)

Amp.F

V&OH

2.0 2.6 3.2 4.0 5.0

250 300 350 350 350

30-50 50-80 70-115 100-150 140-190

25-45 45-75 65-110 95-140 -

•Approval : ABS, DNV, LR(NC-308L)


•Tip Color : NC-308L: Red, NC-308EL : First: Red, Second : Black


NC-308L 0.030 1.10 0.73 0.021 0.008 19.55 9.98

NC-308EL 0.020 1.05 0.71 0.018 0.006 19.30 9.95

Product name C Mn Si P S Cr Ni


NC-308L 560(57) 48

NC-308EL 550(56) 50

Product name TS N/mm2(kgf/mm2) EL (%)

Covered Arc W


112

ApplicationsWelding of 18%Cr-8%Ni stainless steel such as AISI (SUS) 304, 308H.

CharacteristicsNC-308H is a lime-titania type electrode for all-position welding. It's Carbon content in weld metalis controlled 0.04%~0.08%, so its tensile strength & creep strength are good in the as welded con-ditions.

Notes on usage(1) Keep the arc as short as possible and choose the welding current as low as possible.(2) Weaving width should be within two and a half times of electrode's diameter.(3) When the electrodes have absorbed moisture, dry them at 250~300℃ for 60~90 minutes before

use.(4) Usually, preheat is not necessary.

NC-308HFor welding of 18%Cr-8%Ni stainless steel

AWS A5.4 E308H-16KS D7014 E308-16JIS Z3221 ES308H-16


0.07 1.05 0.70 0.019 0.006 19.65 9.85

C Mn Si P S Cr Ni


610(62) 45.0


Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0

300 350 350 350

50-80 70-115 100-150 150-200

65-110 95-140 - -

Size & recommended current range(DC±)

•Tip Color : Blue

Covered Arc W


113

ApplicationsWelding of SUS309S or SCS 17.Welding of dissimilar metals such as stainless steel to carbon steel or low alloy steel.

CharacteristicsNC-309 is a lime-titania type electrode for all-position welding, which has good usability. As weldmetal contains ferrite in austenitic structure, its weldaility is good and it provides good corrosionresistibility and good heat resistibility.As weld metal contains much quantity of alloying elements and has stable austenitic structure,NC-309 is suitable for welding of the part which is affected by the dilution of mother plate.

Notes on usage(1) Keep the arc as short as possible.(2) Weaving width should be within two and a half times of the electrode's diameter.(3) When the electrodes have absorbed moisture, dry them at 250~300℃ for 60~90 minutes before use.(4) Pay attention that the dilution of mother plate should not be excessive.(5) Usually, preheat is not necessary.




0.07 1.30 0.75 0.020 0.008 23.90 12.85

C Mn Si P S Cr Ni


590(60) 39


Dia. (mm)

L (mm)

Amp.F

V&OH

2.0 2.6 3.2 4.0 5.0

250 300 350 350 350

30-50 50-80 70-115 100-150 140-190

25-45 45-75 65-110 90-140 -

•Approval : ABS, DNV, KR



Covered Arc W


114

ApplicationsWelding of SUS 309S or SCS17. Under laying welding of build up welding of SUS304L tocarbon steel or low alloy steel. Welding of dissimilar metals such as stainless steel tocarbon steel or low alloy steel.

CharacteristicsNC-309L and NC-309EL are lime-titania type electrodes for all-position welding, whichhas excellent usability. As weld metal contains ferrite in austenitic structure, its weldabilityis excellent and its ultra-low carbon weld metal as welded is excellent in corrosionresistibility and heat resistibility. NC-309L and NC-309EL are suitable for welding of partswhich might be affected by the dilution of the mother plate. Especially, NC-309EL issuperior to intergranular corrosion resistibility of NC-309L

Notes on usage(1) Keep the arc as short as possible.(2) Weaving width should be within two and a half times of electrode's diameter.(3) When the electrodes have absorbed moisture, dry them at 250~300℃ for 60~90 minutes

before use.(4) Pay attention that the dilution of mother plate should be excessive.

NC-309L, NC-309ELFor welding of extra-low carbon 22%Cr-12%Ni

stainless steel


Dia. (mm)

L (mm)

Amp.F

V&OH

2.0 2.6 3.2 4.0 5.0

250 300 350 350 350

30-50 50-80 70-115 100-150 140-190

25-45 45-75 65-110 90-140 -

•Approval : ABS, DNV(NC-309L)


•Tip Color : NC-309L : Yellow-Green, NC-309EL : First : Yellow-Green, Second : Black


NC-309L 0.030 1.30 0.75 0.021 0.007 23.80 12.90

NC-309EL 0.022 1.25 0.74 0.021 0.008 24.10 12.85

Product name C Mn Si P S Cr Ni


NC-309L 570(58) 42

NC-309EL 560(57) 43


Covered Arc W


115

ApplicationsBuild up welding of Cr-Mo steel or carbon steel.Welding of AISI(SUS) 316 to carbon steel. Clad steel side welding to AISI (SUS) 316.

CharacteristicsNC-309 Mo is lime-titania type electrode for all-position welding, which has good usabilityand good weldability. Good resistance against dilute sulphuric acid compared with that ofNC-309.Weld metals provide excellent corrosion resistibility and heat resistibility in the as-weldedcondition.

Notes on usage(1) Keep the arc as short as possible.(2) Weaving width should be within two and a half times of electrode's diameter.(3) When the electrodes have absorbed moisture dry the at 250~300℃ for 60~90 minutes

before use.

NC-309MoFor welding of 22%Cr-12%Ni-Mo stainless steel

AWS A5.4 E309Mo-16KS D7014 E309Mo-16JIS Z3221 ES309Mo-16


650(66) 36



C Mn Si P S Cr Ni Mo

0.07 1.23 0.70 0.021 0.008 22.75 13.40 2.35

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0

300 350 350 350

50-80 70-115 100-150 140-190

45-75 65-110 90-140 -

•Approval : ABS



Covered Arc W


116

ApplicationsBuild up welding of Cr-Mo steel or carbon steel.Welding of AISI (SUS) 316 or AISI (SUS) 316L to carbon steel.Clad steel side welding to AISI (SUS) 316 or AISI (SUS) 316L.

CharacteristicsNC-309MoL is a lime-titania type electrode for all-position welding, which has good usabilityand good weldability. Good resistance against dilute sulfuric acid compared with that of NC-309. Weld metals provide excellent corrosion resistibility and heat resistibility in the as-weldedcondition. As NC-309MoL is of low carbon content, it can be used for welding of extra-low carbonstainless steel which contains Mo and for under laying of mother plates which contain considerablyhigh carbon content.

Notes on usage(1) Keep the arc as short as possible and choose the welding current as low as possible.(2) Weaving width should be within two and a half times of electrode's diameter.(3) When the electrodes have absorbed moisture, dry them at 250~300℃ for 60~90 minutes

before use.

NC-309MoLFor welding of low carbon 22%Cr-12%Ni-Mo stainless steel

AWS A5.4 E309LMo-16KS D7014 E309MoL-16JIS Z3221 ES309LMo-16


630(64) 38



0.030 1.20 0.71 0.021 0.006 22.85 13.51 2.35


Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0

300 350 350 350

50-80 70-115 100-150 140-190

45-75 65-110 90-140 -

•Approval : DNV, LR


•Tip Color : Red

Covered Arc W


117

ApplicationsWelding of stainless steel to carbon steel or low alloy steel.Clad steel side welding to AISI (SUS) 321 or AISI (SUS) 347.

CharacteristicsNC-309Cb is a lime-titania type electrode for all-position welding, which has good usabilityand good weldability.Wed metal contains small amount of stabilizing element(Cb).Intergrangular corrosion resistibility is good.


before use.

NC-309CbFor welding of low carbon 22%Cr-12%Ni-Nb stainless steel

KS D7104 E309Nb-16AWS A5.4 E309Nb-16JIS Z3221 ES309Nb-16


652(66.5) 34.4



0.019 0.80 0.86 0.03 0.013 23.21 12.54 0.81

C Mn Si P S Cr Ni Cb+Ta

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0

300 350 350 350

50-80 70-115 100-150 140-190

45-75 65-110 90-140 -


Covered Arc W


118

ApplicationsWelding of AISI (SUS) 310S.

CharacteristicsNC-310 is a lime-titania type electrode for all-position welding, depositing weld metal ofperfect austenitic structure. The weld metal has good mechanical properties, especially high toughness in all weldingcondition as well as good corrosion resistibility and good heat resistibility.

Notes on usage(1) Keep the arc as short as possible.(2) Weaving width should be within two and a half times of the electrode's diameter.(3) When the electrodes have absorbed moisture, dry them at 150~200℃ for 30~60 min-

utes before use.(4) As the weld metal becomes perfect austenitic structure because of much inclusion of

alloy elements, beware of cracking.(5) Usually, preheat is not necessary.




0.10 1.58 0.35 0.021 0.008 26.11 20.85

C Mn Si P S Cr Ni

Typical corrosion resistance of weld metal

40% HNO3(Nitric acid) Boiling 0.08g/m2·hr


600(61) 40

TS N/mm2(kgf/mm2) EL (%)

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0

300 350 350 350

40-80 70-110 110-140 140-170

35-75 65-100 105-135 -


•Tip Color : Pink•Approval : ABS

Covered Arc W


119

ApplicationsWelding of 29%Cr-9%Ni cast steel, dissimilar metals such as carbon steel or low alloysteel to austenitic stainless steel.Welding of AISI (SUS) 304 clad steel.Under laying build up of hardsurfacing.

CharacteristicsNC-312 is a lime titania type electrode for all-position welding, depositing weld metal of29% Cr-9%Ni. As the weld metal contains large quantity of ferrite, its crack resistibilityis good. It is used for welding dissimilar metals and under laying welding of hardsurfacing.

Notes on usage(1) Choose the welding current as low as possible to prevent cracking of the weld meatal.(2) When the electrodes have absorbed moisture, dry them at 250~300℃ for 60~90

minutes before use.(3) Weaving width should be within two and a half times of electrode's diameter.(4) It is necessary to preheat the plate at 200℃ and over in the case of welding of special

steel such as high alloy tool steels.

NC-312For welding of dissimilar metals



0.09 1.55 0.38 0.023 0.007 29.10 9.50

C Mn Si P S Cr Ni


760(77) 28


Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0

300 350 350 350

50-85 70-105 95-145 135-180

45-80 65-110 85-135 -



Dia. (mm)

L (mm)

Amp.F

V&OH

2.0 2.6 3.2 4.0 5.0

250 300 350 350 350

30-50 50-80 60-115 100-150 140-190

25-45 45-75 65-110 94-140 -

•Approval : ABS, DNV



Covered Arc W


120

ApplicationsWelding of AISI (SUS) 316 stainless steel.

CharacteristicsNC-316 is a lime-titania type electrode used in all positions.As the weld metal has austenitic structure including proper quantity of ferrite, its crackresistibility is excellent.Especially its corrosion resistance against sulphuric acid and nitric acid is excellent.Heat resistance is much better than that of 18%Cr-8%Ni stainless steel welds.


minutes before use.(4) Remove dirts such as oil and scale from the groove.

NC-316For welding of 18%Cr-12%Ni-2%Mostainless steel

AWS A5.4 E316-16KS D7014 E316-16 JIS Z3221 ES316-16


0.06 1.05 0.73 0.021 0.008 18.85 12.35 2.30



5% H2SO4(Sulphuric acid) Boiling 5.0g/m2·hr


580(59) 44


Covered Arc W


121

ApplicationsWelding of AISI (SUS) 316L stainless steel.

CharacteristicsNC-316L and NC-316EL are lime-titania type electrodes for all-position welding.As the weld metal is of austenitic structure containing proper quantity of ferrite crackresistibility is good and usability is also good. As extra-low carbon weld metal can beobtained, intergranular corrosion resistibility is superior to that of NC-316.Creep rupture strength is also good.

Notes on usage(1) Keep the arc as short as possible and choose the welding current as low as possible (2) Weaving width should be within two and a half times of electrode's diameter.(3) When the electrodes have absorbed moisture, dry them at 250~300℃ for 60~90

minutes before use.(4) Remove dirts such as oil and dust from the groove.

NC-316L, NC-316ELFor welding of extra-low carbon 18%Cr-12%Ni-2%Mo stainless steel


Dia. (mm)

L (mm)

Amp.F

V&OH

2.0 2.6 3.2 4.0 5.0

250 300 350 350 350

30-50 50-80 70-115 100-150 140-190

25-45 45-75 65-110 95-140 -

•Approval : ABS, DNV, KR, LR


•Tip Color : NC-316L : Green, NC-316EL : First : Green, Second : Black


NC-316L 0.030 1.06 0.70 0.021 0.006 18.50 12.45 2.35

NC-316EL 0.021 1.10 0.70 0.019 0.006 18.50 12.53 2.41

Product name C Mn Si P S Cr Ni Mo


NC-316L 570(58) 45

NC-316EL 570(58) 47



590(60) 43


Covered Arc W


122

ApplicationsWelding of AISI (SUS) 317, AISI (SUS) 317L.

CharacteristicsNC-317 is a lime titania type electrode for all-position welding.Due to more Mo content than that of NC-316L, its corrosion resistibility is superior indilute sulfuric acid. As weld metal with extra-low carbon content can be obtained, it showsgood intergranular corrosion resistibility.



NC-317LFor welding of extra-low carbon 18%Cr-12%Ni-3.5%Mo stainless steel



0.028 1.15 0.68 0.020 0.008 18.70 13.42 3.45


Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0

300 350 350 350

50-80 70-115 100-150 140-190

45-75 65-110 95-140 -


•Tip Color : Black-Brown


5% H3SO4 (Sulphuric acid) Boiling 5.0g/m2·hr

Covered Arc W


123

ApplicationsWelding of chemical plant which is exposed to non-oxidizing acid such as sulfuricacid, sulfurous acid, phosphoric acid, etc. Welding of AISI (SUS) 316 which requiredto prevent precipitation of chromium carbide in the welding.

CharacteristicsNC-318 is a lime-titania type electrode for all-position welding, which has goodusability and weldability. As the weld metal contains Mo, the deposited metal hasgood corrosion resistibility oxdizing acid and non-oxdizing acid such as sulfuric acid,etc. As the weld metal contains Nb, it has good resistance to intergranular corrosion andhas no precipitation of chromium carbide in the weld metal.



NC-318For welding of 18%Cr-12%Ni-2.5%Mo-Nbstainless steel



630(64) 40


Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0

300 350 350 350

50-80 70-115 100-150 150-200

45-75 65-110 95-140 -


•Tip Color : Gray


0.03 1.05 0.80 0.020 0.004 11.92 18.98 2.15 0.49

C Mn Si P S Ni Cr Mo Nb+Ta

Covered Arc W


124

ApplicationsWelding of AISI (SUS) 304L, 321, 347 stainless steel.

CharacteristicsNC-347 is a lime-titania type electrode for all-position welding, which has excellentusability.As its weld metal has austenitic structure containing Nb, its intergranular corrosionresistibility is good and its creep rupture strength is also excellent.

Notes on usage(1) Keep the arc as short as possible.(2) Weaving width should be within two and a half times of electrode's diameter.(3) When the electrodes have absorbed moisture, dry them at 250~300℃ for 60~90


NC-347For welding of 18%Cr-8%Ni-Nb stainless steel


Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0

300 350 350 350

50-80 80-120 100-150 140-190

45-70 70-100 95-140 -

•Approval : ABS


•Tip Color :Blue


0.035 1.05 0.78 0.021 0.010 19.5 9.66 0.45

C Mn Si P S Cr Ni Nb+Ta


40% HNO3(Nitric acid) Boiling 0.098g/m2·hr


650(66) 37


Covered Arc W


125

ApplicationsWelding of SUS 403, 410 stainless steels and SUS 420J1, J2 and welding of hard-surfacing for corrosion resistance.

CharacteristicsThe weld metal is of martensite structure containing ferrite with self-hardening property.Cavitation-abrasion, corrosion and oxidation resistibilities of weld metal are good.

Notes on usage(1) Keep the arc as short as possible.(2) Weaving width should be within two and a half times electrode diameter.(3) When the electrodes have absorbed moisture, dry them at 300~350℃ for 30~60

minutes before use.(4)

NC-410For 13%Cr stainless steel



0.08 0.43 0.24 0.024 0.003 0.19 12.80

C Mn Si P S Ni Cr

200~400℃ 700~760℃ Preheat, interpass temp. PWHT


550(56) 29 730~760℃×1hr. Air cooling after slowly cooled down to 315℃

TS N/mm2(kgf/mm2) EL (%) PWHT

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0

300 350 350 350

50-85 70-115 95-145 135-180

45-80 65-110 85-135 -



Covered Arc W


126

ApplicationsWelding of AISI (SUS) 403, 410, 420 and cast steel of 13%Cr-Ni such as SCS5, CA6NMwelding of hard-surfacing of required corrosion resistance and wear resistance.

CharacteristicsNC-410NiMo is a lime-titania type electrode for all-position welding, which has a good usabilityand weldability. the weld metal has martensitic structure containing ferrite.


before use.(4)

NC-410NiMoFor welding of 13%Cr-4%Ni-Mo stainless steel AWS A5.4 E410NiMo-16

JIS Z3221 ES410NiMo-16


Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0

300 350 350 350

50-85 70-115 95-145 140-180

45-80 65-110 85-135 -




0.03 0.73 0.67 0.019 0.002 4.30 12.17 0.50



920(93) 19 600℃×1hr

TS EL PWHT N/mm2(kgf/mm2) %

Covered Arc W


127

ApplicationsWelding of 17%Cr stainless steel such as SUS430.

CharacteristicsNC-430 is a lime-titania type electrode for all-position welding.It shows good corrosion resistibility and good oxidation resistibility to Nitric acid.

Notes on usage(1) Keep the arc as short as possible.(2) Weaving width should be within two and a half times electrode's diameter.(3) When the electrodes have absorbed moisture, dry them at 150~200℃ for 30~60

minutes before use.(4)

NC-430For 17%Cr stainless steel



0.06 0.62 0.42 0.023 0.003 16.80 0.35

C Mn Si P S Cr Ni



520(53) 30 770℃×2hr. Air cooling after slowly cooled down to 590℃

TS N/mm2(kgf/mm2) EL (%) PWHT

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0

300 350 350 350

50-80 70-115 100-150 150-200

45-75 65-110 95-140 -



Covered Arc W


128

ApplicationsWelding of 19%Cr-9%Ni-3%Mo Duplex stainless steel. Field of applications are in off-shore engineering and in the chemical industry.

CharacteristicsNC-2209 offers excellent position weldability and thus is perfectly suited for pipe welding. Besides the good wetting characteristics, slag removability, resistance to porosity.

Notes on usage(1) Keep the arc as short as possible.(2) Weaving width should be within two and a half times electrode's diameter.(3) When the electrodes have absorbed moisture, dry them at 150~200℃ for 30~60

minutes before use.

NC-2209For Duplex stainless steel AWS A5.4 E2209-16

JIS Z3221 ES2209

Dia. (mm)

L (mm)

Amp.F

V&OH

2.6 3.2 4.0 5.0

300 350 350 350

50-80 70-115 100-150 150-200

45-75 65-110 95-140 -



C Mn Si P S Cr Ni Mo N Cu 0.02 0.83 0.87 0.019 0.003 21.69 9.68 2.83 0.16 0.07


702(72) 850(87) 26


Covered Arc Welding ElectrodesFor Cast lron

01


0.98 0.8 0.32 0.005 0.004 55.1 Rem

C Mn Si P S Ni Fe

Dia. (mm)

L (mm)

Amp. F

2.6 3.2 4.0 5.0

300 300 350 350

60-90 80-120 120-150 140-190


•Tip Color : Red

Covered Arc W

elding ElectrodesFor C

ast lron

130

ApplicationsFor welding of nodular cast iron, repairing and joining of various cast iron products. Also suitablefor underlaying of hardsurfacing.

CharacteristicsCI-400 is a graphite type coated electrode whose weld metal has the composition of 55%Ni-45%Fe. As the hardening of fusion zone in cast iron is small and the coefficient of thermal expansionof the weld metal is about same as that of cast iron, mechanical properties and crack resistibilityof the weld metal are good.

Notes on usage(1) Clean base metal before welding.(2) If there is a possibility that cracking spreads, make the stopholes at both ends of repairing part.(3) Keep bead length less than 50mm to disperse welding heat. Adopt back step, stepping stone

or symmetry method by turns.(4) Hot peen in every pass.(5) It is not necessary preheating and postheating in general but satisfactory results can be obtained

by preheating at 100~200℃ in accordance with kind, shape and size of base metal.

CI-400For repairing of cast iron products.

AWS A5.15 E NiFe-ClKS D7008 DFC NiFeJIS Z3252 DFC NiFe


560(57)

TS N/mm2(kgf/mm2)


0.86 0.3 0.28 0.002 0.002 1.85 Rem.

C Mn Si P S Fe Ni

Dia. (mm)

L (mm)

Amp. F

2.6 3.2 4.0 5.0

300 350 400 350

60-90 80-130 110-160 150-210



Covered Arc W


ast lron

131

ApplicationsRepairing and filling up of cavities of various kinds of cast iron products such as cylinder covers, motorbeds, casings and gears. Repairing of meehanite cast iron, alloy cast iron and malleable cast iron.

CharacteristicsCI-500 is a graphite type coated electrode, depositing weld metal consisting of almost nickel. Hard-ening of the weld metal and fusion zone in cast iron is smallest and machining of the welds is com-paratively easy. Therefore, it is suitable for welding alloy cast iron of poor weldability, malleablecast iron and hydraulically pressured parts as well as common cast iron.

Notes on usage(1) Clean base metal before welding.(2) If there is a possibility that cracking spreads, make the stopholes at both ends of repairing part.(3) Keep bead length less than 50mm to disperse welding heat. Adopt back step, stepping stone

or symmetry method by turns.(4) Hot peen in every pass.(5) It is not necessary preheating and postheating in general but satisfactory results can be obtained

by preheating at 100~200℃ in accordance with kind, shape and size of base metal.


AWS A5.15 E Ni-ClKS D7008 DFC NiJIS Z3252 DFC Ni


440(45)

TS N/mm2(kgf/mm2)

Covered Arc W


ast lron

132

ApplicationsRepairing of various kinds of cast iron produtcs.

CharacteristicsCI-600 is a graphite type coated electrode, depositing weld metal consisting of pure iron. It isdesigned for welding of cast iron when machining of the deposit is not required. Hardness ofthe bonded area will be higher than that with nickel type electrode.

Notes on usage(1) Clean base metal before welding.(2) If there is a possibility that cracking spreads, make the stopholes at both ends of repairing

part.(3) Keep bead length less than 50mm to disperse welding heat. Adopt back step, stepping

stone or symmetry method by turns.(4) Hot peen in every pass.(5) The preheat temperatures vary in accordance with kind, shape and size of base metal.

Preheating at 200~350℃ is appropriate to prevent cracking. Slow cooling is recommendedafter welding.


AWS A5.15 E StKS D7008 DFC FeJIS Z3252 DFC Fe


510(50) 33



1.34 0.47 0.65 0.02 0.005

C Mn Si P S

Dia. (mm)

L (mm)

Amp. F

2.6 3.2 4.0 5.0

300 350 400 400

60-90 90-130 120-160 150-220



Covered Arc Welding Electrodes For Nickel and Nickel Alloy Steel

01

Covered Arc W

elding Electrodes For N

ickel and Nickel Alloy

134

ApplicationsWelding of 70%NI-30%Cu Monel such as alloy 400.

CharacteristicsCSM-NiCu7 deposits 70%Ni-30%Cu weld metal based on Monel alloy 400 with raised levelsof mananese and titanium to suppress hot cracking and porosity. It is optimised to give thehighest as-welded ductility and strength attainable in weld metal of this type.Welding of Nickel-Copper alloy to themselves and to steel. Clad side of joints in steel cladwith Nickel-Copper alloy. Surfacing steel with Nickel-Copper alloy weld metal.

Notes on usage(1) Keep the arc as short as possible and choose the welding current as low as possible.(2) Weaving width should be within two and a half times of electrode’s diameter.(3) When the electrodes have absorbed moisture, dry them at 200~250℃ for 60minutes be-

fore use.(4) Usually, preheat is not necessary, but keep the temperature of inter-pass less then 150℃.

CSM-NiCu7For welding of 70%Ni-30%Cu Monel

AWS A5.11 E NiCu-7KS D7021 D NiCu-7JIS Z3224 D NiCu-7


0.0376 3.61 0.83 1.54 64.13 0.048 0.651

C Mn Si P S Fe Ni Cr AI Ti


540(55) 48 Good Good

T.S EL X-ray test Bending test N/mm2(kgf/mm2) %

Dia. (mm)

L (mm)

Amp.(A)FLAT

V-up

3.2 4.0

350 350

85-110 120-160

75-105 110-150


Covered Arc W



135

ApplicationsFor nuclear engineering; sulphuric, nitric and hydrofluoric and processing equipment.

CharacteristicsCSI-690 is designed to match alloy 690, which is finding increasing use in place of alloy600 for high temperature corrosion applications, especially in nuclear applications. Thehigh chromium content provides good elevated temperature corrosion resistance in ox-idising and sulphidising atmospheres. In addition to joining matching base materials, theelectrode can also be used for surfacing application on CMn and low alloy steel.

Notes on usage(1) Use recommended current range. if not it will be much spatters and undercut.(2) Keep the arc as short as possible.(3) Weaving width should be within two and a half times electrode's diameter.(4) When the electrodes have absorbed moisture, dry them at 250~280℃ for 30~60

minutes before use.

CSI-690For Ni and Ni alloyed steel

AWS A5.11 E NiCrFe-7

Dia. (mm)

L (mm)

Amp.F

V&OH

Size & recommended current range (AC or DC+)


0.03 3.4 0.57 0.001 0.006 9.6 55.4 0.01 0.009 0.001 31.1 1.57 0.002

C Mn Si P S Fe Ni Cu Al Ti Cr Nb Mo


446(46) 666(68) 38.6 76

YP TS EL CVN N/mm2(kgf/mm2) N/mm2(kgf/mm2) % (J)(at -196℃)

3.2 4.0

350 350

90-120 120-150

80-110 100-140

Covered Arc W



136

ApplicationsFor high temperature and creep resisting steel, heat resisting and dissimilar joint.

CharacteristicsCSI-625 is designed to match inconel 625, incoloy 825, incoloy 25-6Mo and other Mo con-taining stainless steel. Suitable in pressure vessel fabrication for -196℃ to 550℃, otherwiseup to the scaling resistance temperature of 1200℃.The weld metal has high strength at room and elevated temperatures and has exceptionalcorrosion resistance, including resistance to pitting, crevice corrosion and polythionic acidstress-corrosion cracking. CSI-625 is useful for many dissimilar joints involving inconel alloys,incoloy alloys, stainless steels, low-alloy steel, and carbon steel.

Notes on usage(1) Use recommended current range. if not it will be much spatters and undercut.(2) Keep the arc as short as possible.(3) Weaving width should be within two and a half times electrode's diameter.(4) When the electrodes have absorbed moisture, dry them at 250~280℃ for 30~60 minutes

before use.

CSI-625For Ni and Ni alloyed steel

AWS A5.11 E NiCrMo-3KS D7021 D NiCrMo-3JIS Z3224 D NiCrMo-3

Dia. (mm)

L (mm)

Amp.F

V&OH

3.2 4.0

350 350

90-120 120-150

80-110 100-140



0.03 0.7 0.54 0.001 0.002 2.1 61.6 21.9 3.8 8.5

C Mn Si P S Fe Ni Cr Nb Mo


774(79) 40.2 62

TS EL CVN N/mm2(kgf/mm2) % (J)(at -196℃)

Covered Arc W



137

ApplicationsWelding of INCONEL(INCONEL 600, INCOLOY 800), dissimilar welding of INCONELand carbon steel, stainless steel, INCONEL and nickel alloy, 9%Ni.

CharacteristicsThese weld metals have no directly equivalent parent materials, although the composi-tion is related to INCONEL 600. Mn and Nb are added to give high resistance to hotcracking, tolerance to dilution by many combinations of nickel-base and ferrous alloys.

Notes on usage(1) Dry the electrodes at 250~280℃ for 30~60 minutes before use.(2) Use recommended current range. If not it will be much spatter and undercut.(3) Keep the arc as short as possible(4) Weaving width should be within two and a half times electrode's diameter.

CSI-182For Nickel and Nickel alloy steel

AWS A5.11 E NiCrFe-3KS D7021 D NiCrFe-3JIS Z3224 D NiCrFe-3

Dia. (mm)

L (mm)

Amp.F

V&OH

3.2 4.0

350 350

85-110 120-150

75-105 110-140



C Mn Si P S Ni Cr Nb Fe Ti

0.04 6.4 0.6 0.003 0.008 69 16.2 1.9 4.8 0.2



TS EL X-ray Test Bending Test N/mm2(kgf/mm2) %

Covered Arc W



138

C Mn Si P S Ni Al Cu Fe Ti

0.015 0.64 0.69 0.002 0.003 95.8 0.07 - 0.54 1.12

ApplicationsWelding of Nickel 200 and 201(Special Metals), Nickel 99.6 and 99.2(VDM)

CharacteristicsThese consumables give low carbon pure nickel with the addition of titanium for refine-ment and de-oxidation. They are used for joining pure nickel to itself, for buffer layers,and for cladding joint faces and flanges.

Notes on usage(1) Dry the electrodes at 150~200℃ for 60 minutes before use.(2) Use recommended current range. If not it will be much spatter and undercut.(3) Cleaning base metals before welding.(4) Keep the interpass temperature below 120℃.

CSI-Ni1For Nickel and Nickel alloy steel

AWS A5.11 E Ni-1KS D7021 D Ni-1JIS Z3224 D Ni-1

Dia. (mm)

L (mm)

Amp.F

V&OH

3.2 4.0

350 350

90-120 120-150

80-110 100-140






Covered Arc W



139

ApplicationsWelding of 70/30 and 90/10 copper-nickel alloys.

CharacteristicsThese consumables deposit a copper-nickel weld metal; nominally 70%Cu and 30%Ni.The consumables are suitable for surfacing and cladding provided the need for anappropriate buttering layer is addressed, normally either alloy 400 or pure nickel.

Notes on usage(1) Dry the electrodes at 200~250℃ for 30~60 minutes before use.(2) Use recommended current range. If not it will be much spatter and undercut.(3) Cleaning base metals before welding.(4) Keep the arc as short as possible

CSC-CuNi3For 70Cu-30Ni and Copper-Nickel steel

AWS A5.6 E CuNiKS D7012 D CuNi-3JIS Z3231 D CuNi-3

C Mn Si P S Ni Cu Fe Ti

0.01 2.0 0.35 0.003 0.003 30.5 65.3 0.65 0.07

Dia. (mm)

L (mm)

Amp.F

V&OH

3.2 4.0

350 350

85-110 120-150

75-105 110-150



378(38.6) 40.2 Good Good



M│E│M│O

Covered Arc Welding Electrodes For Gouging

01

Covered Arc W



142

ApplicationsCutting, chamfering, grooving and gouging of all metals.

CharacteristicsCG-100 performs on all types of arc-welding-machines.No extra equipment or gases neededIdeal for preparation prior to welding, gouging and removing of old or defective weldsand for removal of excess metal, ferrous or non-ferrous. The cut is smooth and uniform.

Notes on usage(1) Hold electrode at an angle of approx. 10±5℃, push in direction of travel using a saw

like motion as shown in the sketch.(2) For piercing holes, strike arc and push in and out until hole is completed.(3) Dry the electrodes at 70~100℃ for 30~60 minutes before use.

CG-100For gouging

Dia. (mm)

L (mm)

Amp.

Size & recommended current range (AC or DC-)


3.2 4.0 5.0

350 350 350

150-180 200-240 280-330

10±5℃CG-100

Covered Arc Welding Electrodes For Mild Steel

Documents

Transcript of Covered Arc Welding Electrodes For Mild Steel