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WPS Welding Procedure Specification

PQR Procedure Qualification Record

Purpose of WPS & PQRTo determine that the Weldment proposed for construction is capable of having the required properties for its intended application

WPSA written document that provides direction to the welder or welding operator for making production welds in accordance with the CODE requirements. It establishes the properties of the weldment, not the skill of the welder.

PQRShall document what occurred during welding the test coupon and results of testing of the coupon.As a minimum, the PQR shall document all the essential variables and other specific information for each process used during welding the test coupon and the results of the required testing.

VariablesEssential

Non-essential

Supplementary essential

Essential VariablesA change in welding condition which will affect the mechanical properties of the weldment.e.g.: A) Change in P Number B) Filler metal C) Electrode D) PWHT, etc.

Non Essential VariablesA change in welding condition which will NOT affect the mechanical properties of the weldment.

e.g. : A) Change in Joint Design B) Methods of Back gouging C) Cleaning. etc.

Supplementary Essential VariablesA change in welding condition which will affect the Notch-Toughness (Impact) properties of the weldment.

e.g. : A) Change in Heat input B) Uphill or Down Vertical welding C) Diameter of Electrode D) Position, etc.

Points to be considered for establishing WPSCode of constructionDetailed drawing of weldmentMaterialThicknessConfigurationProcessContract/Customer/ Code/TPIPreheat/Postheat/ PWHT requirementsSkilled welderGood welding m/c with accessoriesApplication

CONTENTS

OF

WPS / PQR

Joints (QW-402)Joint Design (V-groove, U-groove, Single-bevel etc.)

Backing (YES/NO)

Backing Material Type(Metal/Non-fusing Metal/Non-metallic/Others)

Base Metals (QW-403)P. Number & Group Number Specification Type & Grade ORChemical Analysis & Mechanical Properties

Thickness Range Groove : ______ Fillet:______

Pipe Diameter Range Groove : ______ Fillet :_______

Thickness Range

Sheet1

Thickness T of Test Coupon, Welded, (mm)Range of Thickness T of Base Metal, Qualified (mm)Maximum Thickness t of Deposited Weld Metal, Qualified, (mm)

Min.Max.

Less than 1.5T2T2t

1.5 to 10, incl.1.52T2t

Over 10, but less than 1952T2t

19 to less than 3852T2t when t < 19

38 and over52002t when t < 19

Sheet2

Sheet3

Filler Metals (QW-404)AWS ClassificationSFA NumberF. NumberA. NumberSize of Filler metalFlux trade nameConsumable insertElectrode flux class Deposited Weld Metal Thickness range Groove: ______ Fillet:______

F-Number grouping of electrodes & welding rods is based essentially on their usability characteristics to reduce the number of tests required to qualify procedures and welders.F - NUMBERS

A - NUMBERSUsed to describe the weld deposit chemistry and is applicable only to the ferrous metals for the qualification of a welding procedure.

Position (QW-405)Position Of Groove

Position Of Fillet

Weld Progression (UP/DOWN)

Others

Preheat (QW-406)Preheat Temperature (min.)

Interpass Temperature (max.)

Preheat Maintenance

Others

PWHT (QW-407)Temperature Range

Time Range

Others

Preheat & PWHT requirement based on Diameter, Thickness and Composition ofBase Material

GAS (QW-408) Gas Mix % Flow Rate

Shielding

Trailing

Backing

Electrical Characteristics (QW-409)Current (AC/DC)Polarity (EP/EN)Amps & VoltsW-Electrode type & sizeMode of Metal Transfer (GMAW)Electrode Wire Feed Speed range

Techniques (QW-410)Stringer or Weave BeadOrifice/Gas Cup SizeInitial or Interpass CleaningMethod of Back GaugingOscillationContact Tip to Work DistanceMultiple or Single Pass (per side)Multiple or Single ElectrodeElectrode SpacingPeeningOthers

BHARAT HEAVY ELECTRICALS LIMITED Form No.

TIRUCHIRAPALLI-620014 101-403

WELDING TECHNOLOGY CENTRE

PROCEDURE QUALIFICATION RECORD

Page 1 of 2

Procedure Qualification Record No : Date :

WPS No : Type :

Welding Process : (Auto,Semi-Auto,Manual,Machine)

JOINTS (QW-402) BASE METALS (QW-403)

Matl. Specn.:

Type or Grade:

P. No.

:

Thickness:

Size

:

Groove Design used

Others

:

FILLER METALS (QW-404)

POSITION (QW-405)

AWS No. (Class):

Welding Position:

SFA

:

Weld Progression:

Filler Metal F No.:

(Uphill/Downhill)

(Weld Metal Analysis) A No:

Others: :

Filler metal size

:

PREHEAT (QW-406)

Preheat temp.

:

Deposited weld Metal thickness:

Interpass temp.

:

Postheat

:

Brand

:

Others

:

PWHT (QW-407) GAS (QW-408) Gas Mixture(%) Flow rate

Temperature:

Shielding: ----- ------ -----

Time

:

Trailing

: ----- ------ -----

Others

:

Backing: ----- ------ -----

ELECTRICAL CHARACTERISTICS (QW-409) TECHNIQUE (QW-410)

Current :

Polarity:

String/Weave Bead:

Amps

:

Oscillation

:

Volt :

Multipass or single pass:

ROL (mm/Electrode) :

Multiple or single electrode:

Tungsten Electrode type and size:

Travel speed

:

Mode of metal Transfer:

Others

:

Others

:

BHEL Page 2 of 2

Tiruchirappalli-14 PQR No.:

TENSILE TEST (QW-150)

Specimen

No.

Width

mm

Thickness

mm

Area

mm

Ultimate

Total Load

kN

Ultimate

Unit Stress

N/mm

Failure

Location

GUIDED BEND TESTS (QW-160)

Type &

Fig No. QW-462.2

Result

Type &

Fog No. QW-462.2

Result

TOUGHNESS TEST (QW-170)

Specimen

No

Notch

Location

Notch

Type

CVN2mm

Test

Temp.

C

Impact Values

Kg.m

Lateral Exp.

Drop Weight

%Shear

Mills

Break

No Break

FILLET WELD TEST (QW-180)

Result-Satisfactory (Yes/No)

:

Macro Results (Yes/No)

:

Penetration into Parent metal (Yes/No)

:

OTHER TESTS

Type of Test

:

Result

:

Report No.

:

Deposit analysis:

Others:

Welders Name:

Stamp No.:

Test conducted by: BHEL Plant Laboratory

Test No. :

We certify that the statements in this record are correct and that the test welds were prepared , welded and tested in accordance with the requirements of Sec IX of the ASME code Edition 2004 and addenda July 2005.

Approved by :

Prepared by :

(XXXXXXXX) (XXXXXXXX)

XXXXXXX XXXXXXXXX

BHEL Page 2 of 2

Tiruchirappalli 14

WPS No : Rev :

PWHT(QW-407)

GAS ( QW - 408)

Gases Mix % flow Rt

Temp. Range :

Shielding :

--- ---

Time Range :

Trailing : --- ---

Others :

Backing : --- ---

ELECTRICAL CHARACTERISTICS ( QW 409 )

Current (AC/DC) : See table

Polarity : See table

Amps (Range) : See table

Volts : See table

Tungsten Electrode type and size: .

Mode of Metal transfer for (GMAW): .

Electrode wire feed speed range

: .

Pulsing current (GTAW)

: .

TECHNIQUES (QW-410)

String or Weave Bead

Orifice or Gas cup size

:

Initial and Interpass Cleaning

: Brushing / Chipping / Grinding.

Method of Back Gouging

: .

Oscillation

:

Contact tube to work distance

:

Multiple or single pass (per side):

Multiple or single Electrode

:

Electrode spacing

: .

Peening

:

Others

: Nil

Weld Layer

Process

Filler

Current

Voltage Range

Travel speed Range

Others (Hot wire,Torch angle,ROL.)

Class

Dia.

mm.

Type

Amps.

Root &

Capping

Others

-- do --

Approved by :

Prepared by :

(xxxxxxxxx) (xxxxxxxxxxxx)

xxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxx

BHARAT HEAVY ELECTRICALS LIMITED Form No.

TIRUCHIRAPPALLI-620014 101 - 401

WELDING TECHNOLOGY CENTRE

WELDING PROCEDURE SPECIFICATION

Page 1 of 2

WPS No. :

Date :

Supporting

Rev No. :

Date : ----

PQR No:

Welding Process :Type :

(Auto/Semi-Auto/Manual/Machine)

Application :

JOINTS (QW-402)

Joint Design

:.

Backing (Yes/No)

:

Backing Material (Type):

Metal/Non fusing metal

Non metallic/Others

BASE METAL (QW-403)

P.No.:

Group No.:

TO

P.No.: Group No.:

Spec. Type & Grade

: .

Chem. Analysis & Mech. Prop.: .

Thickness Range :-

Groove :

Fillet :

Pipe Diameter Range :-

Groove :

Fillet :

Others :

FILLER METALS (QW-404)

AWS No.(Class):

Size of filler metal:

Specn. No.(SFA):

Flux trade Name:

F.No.

:

Consumable insert:

A.No.

:

Electrode flux class:

Deposited weld metal thickness range :-

Groove :

Fillet :

POSITION (QW-405) PREHEAT (QW-406)

Position of Groove:

Preheat Temp. (min):

Position of Fillet:

Inter pass Temp. (max):

Weld Progression:

Post heat:

(Up/Down)

Others

:

Selection of Filler Metal and Electrode.

Tube MaterialP1/Gr1,2P3/Gr1P4/Gr1P5A/Gr1P5B/Gr2P8/Gr1,2P1/Gr1,2ER80S-G(RT Mo) E7018-1ER80S-G(RT Mo) E7018-1ER80S-G(RT Mo) E7018-1ER80S-G(RT Mo) E7018-1ERNiCr-3ENiCrFe-3P3/Gr1ER80S-G(RT Mo) E7018-A1ER80S-G(RT Mo) E7018-A1ER80S-G(RT Mo) E7018-A1P4/Gr1ER80S-G(1Cr Mo) E8018-B2ER80S-G(1Cr Mo) E8018-B2ER80S-G(1Cr Mo) E8018-B2ERNiCr-3ENiCrFe-3P5A/Gr1ER90S-G(2Cr1Mo) E9018-B3ER90S-G(2Cr1Mo) E9018-B3ERNiCr-3ENiCrFe-3P5B/Gr2ER90S-B9E9018-B9ERNiCr-3ENiCrFe-3

Dr.K. P. DhandapaniDGM / Welding Technology CentreBHEL, Tiruchirapalli

MAKING THE REPAIR WELDThere are THREE separate phases to the job-Preparation for WeldingRepair WeldingPostweld Operation

I. Preparation for WeldingSAFETY If heights are involved, proper scaffolding with safety devices should be used; If welding is enclosed, preparations for proper ventilation and personnel removal should be made; If electrical cables are involved, they should be removed or made inactive.CLEANING The immediate work area must be clean. This includes removal of dirt, grease, oil, rust, paint & plastic coverings from the surface of the parts to be welded. Steam cleaning, solvent cleaning or Power Tool cleaning with brushes, grinding wheels, disc grindings can be employed.DISASSEMBLY Except for the simplest repair jobs, disassembly may be required.

I. Preparation for WeldingPROTECTION OF ADJACENT MACHINERY AND MACHINED SURFACES from weld spatter, flame cutting sparks and foreign material generated by the repair process. Sheet metal baffles, fire proof cloths etc can be used.BRACING AND CLAMPING On complex repair jobs it may be required because of the heavy weight of parts or the fact that loads may be exerted on the parts being weld repaired. They should be located properly so that they do not interfere with the repair welding.LAYOUT REPAIR WORK A layout to show the metal that is to be removed by cutting or gouging.

I. Preparation for WeldingPREHEATING When flame cutting or gouging is required, preheat temperature should be the same or at least one-half the temperature that will be used for the repair welding operation.CUTTING AND GOUGING The oxygen fuel gas cutting torch, the air carbon arc gouging process, power tools etc. can be employed.GRINDING AND CLEANING The resultant surfaces may not be as smooth as desired and may include burned areas or oxide, for example. Grind the surfaces to clean bright metal prior to starting to welding.

II. Repair WeldingWELDING PROCEDURE The process to be used, the specific filler metals, the preheat required, and any other specific information concerning the welding joint technique.WELDING EQUIPMENTMATERIALS Sufficient materials must be available for the entire job. This includes the filler metals, insert pieces and reinforcing pieces, fuel for preheat and Interpass temperature, shielding gases, and fuel for engine-powered welding machines.ALIGNMENT MARKERS Useful in maintaining dimensional control and alignment during the welding operation.

II. Repair WeldingWELDING SEQUENCES Useful to reduce distortion and to help maintain alignment and dimensional control.WELDING PERSONNEL Skill, Sufficient number.SAFETY e.g.. Sufficient ventilation to be provided when fuel gases are used for preheating.WELD QUALITY The final weld should be smooth, there should be no notches and reinforcement, if used, should fair smoothly into the existing structure. If necessary, grinding should be done to maintain smooth flow contours.

III. Postweld OperationINSPECTION The finished weld should be inspected for smoothness and quality. This can include NDE.CLEANUP OPERATION This includes the removal of strong-backs and the smooth grinding of the points where they were attached. It also involves the removal of other bracing and protective cover. In addition, all weld stubs, weld spatter, weld slag, and other residue should be removed from the repair area.REPAINTINGREASSEMBLY

EXAMPLE WELDING TECHNOLOGY CENTREBHEL TIRUCHIRAPALLIDATE: 09/09/2006WELDING PROCEDURE FOR REPAIR OF HEADER Suitable support to be provided at the two ends of the header so as to fix it at its position. Cut/machine out the central portion of the header that requires replacement by suitable means. The tubes shall be cut at appropriate distance. Edge prepare on the two ends of the header and on the tubes as per the relevant drawing. The header shall be free from chips prior to fit up & welding. Circumferential Groove Welding. (WPS No.1005/04) 1.Properly align the axis of the central new portion of the header with the old two header ends and also the axes of the nipple with the tubes and do the fit-up.

2. Clean the surfaces to be weld and its vicinity (upto a distance of 15mm minimum) to remove oil, dirt, rust etc.

Preheat the job to 1500C minimum uniformly upto a distance of 75mm minimum from the joint edges.

Do the root welding using GTAW Process. Use ER80S-G (RT Mo) filler metal.

Use SMAW process to fill up the groove and complete the welding. Properly dried E7018-A1 (as per required drying procedure) to be used for welding.

Do the post heating for 2hrs at 1500C temperature and allow it to cool down slowly to room temperature.

Conduct Radiography Testing on the joint as per the relevant NDT procedure.

If any defect is found do the rework by repeating the above relevant steps after properly removing the defect by Grinding/Machining/gauging.

When the weld is free from defects, carry out PWHT at 635+150C temperature with a soaking time of 80min. The rate of heating and cooling above 4000C shall be 1100C/hr.

Nipple to Tube Welding (WPS No. 1003/02)

Clean the surfaces on the tube and nipple to be weld and its vicinity (upto a distance of 15mm minimum) to remove oil, dirt, rust etc.

Do the root welding using GTAW Process. Use ER80S-G (RT Mo) filler metal.

Use SMAW process to fill up the groove and complete the welding. Properly dried E7018-1 (as per required drying procedure) to be used for welding.

Conduct Radiography Testing on the joints as per the relevant NDT procedure.

If any defect is found do the rework after properly removing the defect by Grinding/Machining/ gauging.

Carry out the final inspection on the job as per the relevant approved procedure.

IBR clearance for Pr Part welding repairCarryout NDT in the defective areaGet approval on weld repair procedureREPAIR WELDINGSPOT REPAIRCUT & WELD (with/without spool piece)Ascertain nature & location of defectRemove the defectConduct NDT & ensure the original defect is completely removedRemove failed part by cutting/gougingEdge prepare on base metal &/or spool pieceDo fit-upSelect equipment, process, welder, consumable, preheating/PWHT arrangement etc.Carryout weld repair as per procedureConduct NDT & certifyRecord the above activities

P. No. & Gr. No

COMMON

NAME

TUBES

PIPES

PLATES

FORGINGS

CASTINGS

P1 Gr1

CARBON STEELS

SA179

SA192

SA210GrA1

SA334Gr1

SA334Gr6

SA106GrB

SA333Gr1

SA333Gr6

SA36

SA515Gr55

SA515Gr60

SA515Gr65

SA516Gr55

SA516Gr60

SA516Gr65

SA266CL1

SA350LF1

SA216WCA

SA352LCA

SA352LCB

P1 Gr2

-do-

SA210GrC

SA106GrC

SA515Gr70

SA516Gr70

SA299

SA105

SA266CL2S

SA350LF2

SA216WCB

SA216WCC

SA352LCC

OTHER

SPEC.

-do-

IS1239

API5LGrB

IS226

IS2062

BMC10

BMC16

BMC20

P3 Gr1

C Mo

Cr 1/2Mo

SA209T1

SA213T2

SA335P1

SA335Gr2

SA204GrA

SAA387Gr2

SA217WC1

P4 Gr1

1Cr MO

1Cr Mo

SA213T12

SA213T11

SA335P12

SA335P11

SA387Gr12

SA387Gr11

SA182F12

SA182F11

SA217WC6

P5A Gr1

2, Cr 1Mo

SA213T22

SA335P22

SA387Gr22

SA182F22

SA217WC9

P5B Gr2

9Cr1Mo V

SA213T91

SA199T91

SA335P91

SA387Gr91

SA182F91

P8 Gr1

18Cr 8Ni

SA213TP304

SA213TP304H

SA213TP316

SA213TP321

SA213TP347

SA213TP347H

SA376TP304

SA376TP304H

SA376TP316

SA376TP321

SA376TP347

SA376TP347H

SA240TP304

SA240TP321

SA240TP347

SA182F304

SA182F321

SA182F347

SA336F304

SA336F321

SA336F347

SA351CF3

SA351CF8

SA351CF3M

SA351CF8M

SA351CF10

SA351CF10M

P8 Gr2

25Cr-20Ni

(Type 310)

SA213TP310H

SA240TP310

SA182F310

SA351CK20

Selection of Filler metal and Electrode.

COMMON

NAME

TUBES

PIPES

Filler material

Electrodes.

Pre heat

PWHT

CARBON STEELS

SA179

SA192

SA210GrA1

SA106GrB

SA333Gr1

SA333Gr6

ER 80S-G

0.5 Mo.

E 7018-1

NIL

610 (15 Deg C

SA210GrC

SA106GrC

C Mo

Cr 1/2Mo

SA209T1

SA213T2

SA335P1

SA335Gr2

ER 80S-G

0.5 Mo.

E 7018-1

NIL

635 (15 Deg C

1Cr MO

1Cr Mo

SA213T12

SA213T11

SA335P12

SA335P11

ER 80S-G

1 Cr, 0.5 Mo.

E 8018-B2

125 Deg C

655 +-(15 Deg C

2, Cr 1Mo

SA213T22

SA335P22

ER 90S-G

2.25 Cr, 1 Mo.

E 9018-B3

150 Deg C

695 (15 Deg C

9Cr1Mo V

SA213T91

SA199T91

SA335P91

ER 90S-B9

E 9018-B9

220 Deg C

760 (15 Deg C

18Cr 8Ni

SA213TP304

SA213TP304H

SA213TP316

SA213TP321

SA213TP347

SA213TP347H

SA376TP304

SA376TP304H

SA376TP316

SA376TP321

SA376TP347

SA376TP347H

Inconnel.

E308, E309, E310, E316

E347

(Based on Material Specification.)

BM used for procedure qualification couponBase Metals QualifiedOne metal from a P-No. to any metal from the same P-No.Any metal assigned that P or S No.One metal from a P-No. to any metal from the any other P-No.Any metal assigned the 1st P or S No. to any metal assigned the 2nd P or S No. One metal from P-No. 3 to any metal from P-No. 3Any P or S No. 3 metal to any metal assigned P or S No. 3 or 1One metal from P-No. 4 to any metal from P-No. 4Any P or S No. 4 metal to any metal assigned P or S No. 4, 3 or 1One metal from P-No. 5A to any metal from P-No. 5AAny P or S No. 5A metal to any metal assigned P or S No. 5A, 4, 3 or 1One metal from P-No. 5A to any metal from P-No. 4, 3 or 1Any P or S No. 5A metal to any metal assigned P or S No. 4, 3 or 1One metal from P-No. 4 to any metal from P-No. 3 or 1Any P or S No. 4 metal to any metal assigned P or S No. 3 or 1Any unassigned metal to the same unassigned metalThe unassigned metal to itselfAny unassigned metal to any P-No. metalThe unassigned metal to any metal assigned to the same P or S No. as the qualified metalAny unassigned metal to any other unassigned metalThe first unassigned metal to the second unassigned metal

S - NumberThey are mostly ASTM specification materials that have not been adopted within Section II, Part D but that are referred within Code Cases and the ASME B31 Code.e.g.

A 588 Gr AS-No. 3Group No. 1A 576 G10100S-No. 1Group No. 1

F-NumberDescription1CS, LAS and certain SS (EXX2X) electrodes2CS titania-coated (EXX12, EXX13, EXX14 & EXX19) electrodes3CS cellulose-coated (EXX10 & EXX11) electrodes4CS & LAS all position, low hydrogen (EXX15, EXX16, EXX18 & EXX48) electrodes & martensitic, ferritic & ppt. hardening SS all position (EXX15, EXX16 & EXX17) electrodes5Austenitic and duplex SS all-position (EXX15, EXX16 & EXX17) electrodes6Solid, Flux-cored & composite ferrous electrodes & rods------

F - NUMBERS (QW - 432)Steel and Steel Alloys

Sheet1

QW - 432

F - NUMBERS

Grouping of Electrodes and Welding Rods for Qualification

F-No.ASME ClassificationAWS Classification

4SFA-5.4 other than austenitic and duplexEXXX(X)-15



4SFA-5.5E(X)XX15-X

4SFA-5.5E(X)XX16-X

4SFA-5.5E(X)XX18-X

4SFA-5.5E(X)XX18M

4SFA-5.5E(X)XX18M1

5SFA-5.4 austenitic and duplexEXXX(X)-15



6SFA-5.2All classifications











6SFA-5.30INMs-X

6SFA-5.30IN5XX

6SFA-5.30IN3XX(X)

Sheet2

Sheet3

Sheet1

QW - 432

F - NUMBERS

Grouping of Electrodes and Welding Rods for Qualification

F-No.ASME ClassificationAWS Classification

1SFA-5.1EXX20

1SFA-5.1EXX22

1SFA-5.1EXX24

1SFA-5.1EXX27

1SFA-5.1EXX28

1SFA-5.4EXXX(X)-25

1SFA-5.4EXXX(X)-26

1SFA-5.5EXX20-X

1SFA-5.5EXX27-X

2SFA-5.1EXX12

2SFA-5.1EXX13

2SFA-5.1EXX14

2SFA-5.1EXX19

2SFA-5.5E(X)XX13-X

3SFA-5.1EXX10

3SFA-5.1EXX11

3SFA-5.5E(X)XX10-X

3SFA-5.5E(X)XX11-X

4SFA-5.1EXX15

4SFA-5.1EXX16

4SFA-5.1EXX18

4SFA-5.1EXX18M

4SFA-5.1EXX48

Sheet2

Sheet3

Filler metals suitable for welding joints between dissimilar austenitic stainless steels

Sheet1

Metal Handbook Ninth Edition

Volume - 6

Brazing and Soldering

Page No. 335

Filler metals suitable for welding joints between dissimilar austenitic stainless steels

Base Metal304L308309309S310310S316,316H316L317321,321H347,347H,348,348H

304,304H,305308L308L308,309308,309308,309, 310308,309, 310308,316308,316308,316, 317308308

304L308L308,309308,309308,309, 310308,309, 310308,316308L,316L308,316, 317308L,347308L,347

308308,309308,309308,309, 310308,309, 310308,316308,316308,316, 317308308,347

309309309,310309,310308,316309,316309,316309,347309,347

309S309,310309S,310S308,316309S,316L310,317309,347309,347

310316310,316317308,310308,310

310S316316,317308,310308,310

316,316H316317308,316308,316, 347

316L316L316L,347

317308,317308,317, 347

321,321H308L,347

Sheet2

Sheet3

Carbon Steel

Diameter mmThickness mmPreheat (min.) Deg. CPWHTRemarksALL

ALL < 19

< 9Nil

Nil Nil

NilC < 0.25%

C < 0.30%

BM SPECIFICATIONSA210GrA1, SA210GrCFILLER METALER80S-G (0.5Mo), E7018-1PWHT TEMPERATURE610+15 deg.C

Low Alloy Steel (0.5Mo)

Diameter mmThickness mmPreheat (min.) Deg. CPWHTRemarks< 127 < 13NilNil -

BM SPECIFICATIONSA209T1FILLER METALER80S-G (0.5Mo), E7018-A1PWHT TEMPERATURE635+15 deg.C

Low Alloy Steel (1Cr,0.5Mo)

Diameter mmThickness mmPreheat (min.) Deg. CPWHTRemarks< 127 < 13125Nil -

BM SPECIFICATIONSA213T11, SA213T12FILLER METALER80S-G (1Cr,0.5Mo), E8018-B2PWHT TEMPERATURE655+15 deg.C

Low Alloy Steel (2.25Cr,1Mo)

Diameter mmThickness mmPreheat (min.) Deg. CPWHTRemarks< 102 < 8150Nil C < 0.15% Cr < 3.0%

BM SPECIFICATIONSA213T22FILLER METALER90S-G (2.25Cr,1Mo), E9018-B3PWHT TEMPERATURE695+15 deg.C

Alloy Steel (9Cr,1Mo,0.25V)

For all Dia. and Thickness, PWHT is mandatory

BM SPECIFICATIONSA213T91FILLER METALER90S-B9, E9018-B9PWHT TEMPERATURE760+10 deg.CPREHEAT TEMPERATURE220 deg.C

Kinkar P. NarzaryWelding Engineer / Welding Technology CentreBHEL, TiruchirapalliPh. 0431-2575546E-mail: [email protected]

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