WEAR RESISTANT HEAV Y PL ATESBorn from fire, made to endure

Acroni is the largest slovenian steel manufacturer, which in order to produce steel recycles scrap in an electric arc furnace, casts it on continuous caster and rolls it into quality flat rolled steel products.

The company is specialised for the production of flat steel products and belongs among most important global suppliers of heavy plates. Besides carbon steel, Acroni produces also stainless and electrical steel.

Constant development, improvement of processes and materials along with the introduction of a quality assurance system in accordance with ISO 9001, environmental management systems in accordance with ISO 14001 and occupational health and safety management systems in accordance with OHSAS 18001, are our guarantee for a constant quality level.

Our experts are always prepared to offer customers their assistance so that the excellent properties of our steels may be exploited to their full advantage and the satisfaction of the customer.

Acroni is a member of SIJ – SLOVENIAN STEEL GROUP.

SIJ is a vertically integrated holding company, the leading steel manufacturer in Slovenia, and one of the largest stainless and special steel manufacturers in Europe. SIJ Group consists of the two largest steel companies in Slovenia (Acroni and Metal Ravne), other manufacturing and processing companies (Ravne Knives, Elektrode, SUZ), specialized service and sales centers across Europe and the USA, and companies for scrap steel collection and sales.

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ACRONI`s wear resistant plates have been successfully used in abrasive environments for more than a quarter of a century. New investments in technology, continuous development and tight cooperation with our customers enable us to offer wider product range, high quality and short delivery terms. Our wear resistant plates are the material of choice for even the most demanding environments and applications.

NICRODUR - extreme resistance to abrasive wearNICRODUR heavy plates are produced in hardness range from 220 to 540 HBW. Compared to non-alloyed structural steels, NICRODUR plates have higher durability which result in up to three times longer lifespan of your products. The unique combination of high hardness, high strength and good toughness improves bending, welding, machining properties and deformation level. NICRODUR is the material well suited for a wide variety of applications in which exposure to heavy wear by hard minerals and other abrasive materials is the case.

Born from fire, made to endure

NICROTER – heat resistance in addition to abrasion resistance NICROTER 600 fine grain steel combines high resistance to mechanical wear, heat resistance up to 600°C, good weldability and machining.

X 12 – increasing hardness with exposure to wearThe virtue of high manganese steel X12 (Hadfield steel, X120Mn12) is high wear resistance and work-hardnening effect on steel structure. With exposure to wear, hardness can be increased by three times compared to delivered condition.

More than just steel – higher efficiency through SIJ welding solutionsInside SIJ group we have developed special welding consumables to be used when welding Acroni's steel. Long experience in the field of welding and expertise knowledge enables us to offer more efficient welding solutions, that can increase welding performance and essentially reduce the costs of production by our clients.

NICRODUR 500

NICRODUR 400

S355

Thickness

Better performance at lower thickness

Years

Up to three times longer lifespan of products

NICRODUR 400

S355

Bulldozers, earth moving crusher jaws, shredder plates, shovel buckets, dumptrucks, industrial trucks, lorries,

CONTAINERS FOR IRON ORE, machine parts and tools for mineral extraction (mining), metal working tools – cutting edges,

knives, gears, bearings, loaders, buckets, slurry pipe systems, GUIDING AND SHIFTING PLATES, liner of shot blasting unit, shot blasting equipment.

Chemical Composition LADLE ANALYSIS

C max Si max Mn max S max P max Cr max Ni max Mo max B max

NICRODUR 250

0,18 0,6 1,6 0,001 0,012 1,2 0,5

NICRODUR 300

0,22 0,6 1,6 0,003 0,012 1,3 0,5

NICRODUR 400

0,16 1,0 1,5 0,002 0,012 0,8 0,5 0,5 0,004

NICRODUR 450

0,18 1,0 1,5 0,002 0,012 0,8 0,5 0,5 0,004

NICRODUR 500

0,28 1,0 1,5 0,002 0,012 1,0 0,5 0,5 0,005

NICROTER 600

0,12 0,45 1,8 0,001 0,015 2 1,3 0,25

X12

1,3 0,4 13 0,001 0,02 0,55 0,55 0,25

Applications

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Max carbon equivalent CEV = C+Mn/6+(Ni+Cu)/15+(Cr+Mo+V)/5

Grade\Thickness range 8-25mm 25-40mm Above 40mmNicrodur 400 max 0,46 max 0,59 max 0,60Nicrodur 450 max 0,49 max 0,59 max 0,74Nicrodur 500 max 0,59 max 0,64 max 0,75

Hardness HBW and delivery conditionHardness (HBW)

NICRODUR 250 NICRODUR 300 NICRODUR 400 NICRODUR 450 NICRODUR 500 NICROTER 600 X12

220-277 260-340 360-440 420 - 477 460 - 540 Min. 300HB Max. 240HB

Rolled Rolled Quenched and tempered

Quenched and tempered

Quenched and tempered Normalized Solution

annealed

Mechanical Properties*Yield strength

(minimal) Re (MPa)Tensile strength Rm

(MPa)Elongation

(minimal) A5 (%) Charpy V-Notch

NICRODUR 250 750 940 15 -20°C 30JNICRODUR 300 820 1030 15 -20°C 30JNICRODUR 400 900 1300 12 -20°C 30JNICRODUR 450 1100 1450 10 -20°C 30JNICRODUR 500 1300 1650 8 -20°C 25JNICROTER 600 660 1000 10 -20°C 27J

X12 350 800-1000 30Typical values for 15 mm plate thickness

* orientational values

Typical mechanical characteristics a elevated temperatures for Nicroter 600:Temperature (°C) Rp0.2 (Mpa) Rm (Mpa) A50 (%)

500 757 888 13400 903 1080 17,5300 934 1140 17200 918 1060 11100 907 1050 11,5

Room 911 1125 14

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Testing and certification

Brinell hardness HBW is measured according to EN ISO 6506 – 1 or EN 10003 – 1. Hardness is tested on each plate. Tests are performed in accredited inhouse testing laboratory. Inspection certificate EN 10204/3.1 is issued for each delivery. Upon agreement inspection certificate EN 10204/3.2. by independent inspection agency can be provided.

Additional ultrasonic testing according to EN 10160, A/SA435 OR A/SA578 can be performed.

Quality drivenWe test each plate to ensure continuous quality you can rely on.

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Tolerances

Upon request narrower thickness, shape, length, width and flatness tolerances as according to EN 10 029 are available.

Surface Properties

According to EN 10 163/A-1.

Anticorrosive primer red oxid colour upon request.

Bending

Dimensional rangeThickness (mm) Width (mm)* Length (mm)

NICRODUR 250 8-60 1000-2500 2000-12000

NICRODUR 300 8-60 1000-2500 2000-12000

NICRODUR 400 8-110 1000-2500 2000-12000

NICRODUR 450 8-100 1000-2500 2000-12000

NICRODUR 500 8-100 1000-2500 2000-12000

NICROTER 600 6-60 1000-2500 2000-12000

X12 6-60 1000-2500 2000-12000

Minimum recommended punch radius (R) and die opening width (W) for plate thickness (t) when the plate is being bent to 90° along the direction of rolling and at right angles to the direction of rolling – and also the corresponding springback.

Bending

R/t W/t

Thickness Transverse Longitudinal Transverse Longitudinal Springback

NICRODUR 400 8 ≥ t < 20 t ≥ 20

3,0 4,5

4,0 5,0

10,0 12,0

10,0 12,0 9 - 13

NICRODUR 450 8 ≥ t < 20 t ≥ 20

4,0 5,0

5,0 6,0

10,0 12,0

12,0 14,0 11 - 18

NICRODUR 500 8 ≥ t < 20 t ≥ 20

5,0 7,0

6,0 8,0

12,0 16,0

14,0 18,0 12 - 20

60

NICRODUR 400

NICRODUR 450, NICRODUR 500

NICRODUR 250, NICRODUR 300,NICROTER 600,

X12Thic

knes

s (m

m)

Width (mm)

110

100

2500

8

6

7

W E L D I N G

SIJ group welding consumables produced by SIJ Elektrode are a perfect solution for welding Acroni wear resistant plates. Welding consumables have been carefully developed taking the caracteristics of Acroni plates into consideration. As a result, we are able to offer optimization and cost reduction of your welding process. Our welding solutions are suitable for even the most demanding industries and applications.Welding Acroni’s wear resistant plates with SIJ group welding consumables has proven to be up to 10%* more efficient as by other combinations. Smooth welding process and more precise welding flow results in perfect joint welding structure.Optimal combinations of wear resistant plates and welding consumables are listed in the table on the right. * internal testing data

10%

Weldingsolution package - increases welding

efficiency by

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Welding processWelding process or procedure* Welding Welding * Welding ** Hardfacing Interlayer

Welding materials / Welding process

SAW

Flu

xes /

Wire

s

Elec

trod

es M

MAW

Flux

cor

ed w

ires F

CAW

Wire

s GM

AW, G

TAW

Elec

trod

es M

MAW

M

MAW

trod

es

Elec

trod

es M

MAW

Flux

cor

ed w

ires F

CAW

Wire

s GM

AW, G

TAW

Elec

trod

es M

MAW

Flux

cor

ed w

ires F

CAW

Elec

trod

es M

MAW

Wire

s GM

AW, G

TAW

SAW

Flu

xes /

Wire

s

EN Designation (EN 499, EN 757, EN 1600, EN 440, EN 14700 EN 758, EN 12071, EN 756, EN 760)

SA F

B 1 5

5 AC

H5/

S 3

SA F

B 1 5

5 AC

H5

E 42

4 B

32

H5

E 42

6 B

42

H5

T 46

4 M

M 1

H5

T 42

4B

C3 H

5 /

T 42

4B

M3

H5

G 42

4 C

/M G

3 S

i1

G 46

4 C

/M G

4 S

i1

E 69

2MN

2NiC

rMoB

42

E 69

2MN

2NiC

rMoB

42

E 89

AMn2

NiC

rMoB

42T

69 4

Mn

2Ni C

r Mo

M 1

H5

T 69

6 M

n2N

iCrM

o B

M (C

)3 H

5M

n3N

i1CrM

o

Fe 1

Fe 2

Fe 3

Fe 8

Fe 1

Fe 7

~Fe

3

E 30

7 T0

-1

E 18

8 M

n B

22

G 18

8 M

nSA

AF

2 54

DC/

S

18 8

Mn

SIJ Elektrode Designation

FBTT

/EPP

3

FBTT

/ Filt

ub 13

2

FBTT

/Filt

ub 13

8

EVB

50

EVB

55

Filtu

b 12

M

Filtu

b 12

B

VAC

60

VAC

65

EVB

75

EVB

80

EVB

100

Filtu

b 32

M

Filtu

b 32

B

MIG

75

E DU

R 25

0

E DU

R 30

0

E DU

R 50

0

E DU

R 40

0

E DU

R 60

0

Filtu

b DU

R 3

Filtu

b DU

R 5

Filtu

b DU

R 12

Filtu

b DU

R 15

/DU

R16

FilC

ORD

307

Inox

B 18

/8/6

MIG

/ TIG

18/8

/6Si

FB33

/ EPP

18/8

/6

SIJ A

cron

i Wea

r Res

ista

nt P

late

Gra

de NICRODUR 250 × × × × × × × × × × × ×

NICRODUR 300 × × × × × × × × × × × × × × × ×

NICRODUR 400 × × × × × × × × × × × × × × × × × × × × ×

NICRODUR 450 × × × × × × × × × × × × × × × × × × × × ×

NICRODUR 500 × × × × × × × × × × × × × × × ×

NICROTER 600 × × × × × × × × × × × ×

X12 × × ×

OTHER REMARKS SIGN */** WELDING PROCESS OR PROCEDURE:

1. For the combinations of NICRODUR steels with unalloyed materials type’s S355 we recommend welding materials marked *

2. *Root-welding infusions (under matching) and whole welding joints, upper layer should be welded with hardfacing process

3. Root-welding infusions (under matching) with sign* are filling with sign** or hardfacing with sign** or just welding with sign*

4. For cladding or hardfacing we recommend interlayer welding materials 18/8/6, without preheating

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Maximum recommended preheat temperatureMaximum recommended preheat temperature [°C]

8 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80

NICRODUR 400 room 75 100 175

NICRODUR 450 room 125 150

NICRODUR 500 room 175 200

* for thicknesses up to 13mm | Data from the table is applicable to single plate thickness when welding with a heat input of 1.7kJ/mm. | The consumables determine the preheating temperature if its carbon equivalent is higher than of the plate | Room temperature is approx 20°C

Maximum recommended interpass temperature Maximum recommended interpass temperature [°C]

NICRODUR 400 225

NICRODUR 450 225

NICRODUR 500 225

SIJ Acroni NICRODUR steels are well weldable. When welding thin plates preheating is not necessary. Preheating is recommended:

• At outside temperatures below 5 °C,

• Thicknesses above 20mm for NICRODUR 250 and 300 plates,

• Thicknesses above 8 mm for NICRODUR 400 and 500 plates.

In this cases recommended temperature of preheating during infusions should not exceed 200 °C. Exceeding the temperature over 200 °C is not recommended as this can cause reduction of hardness.

Welding should be performed immediately after the welding edges are finished, to avoid contamination. Coated electrodes must be dried before welding.

By repair welding and joint welding sharp edges should be avoided, and the first layer of weld filler material should be in thinner dimensions, to assure as low as possible energy intake.

* All welding instructions are reccomendations only.

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Stanko Ravlan, Production Manager, Ravne Knives.

Various wear parts – knife holders, wear plates (Nicrodur 450, Nicrodur 500).

Screens (Nicrodur 450, Nicrodur 500)

Shredder knives (Nicroter 600)

Hammers (Nicrodur 500 and

Nicroter 600)

“Industrial knives made of Acroni wear resistant steel

Where extreme wear on knives and other components is required, choice of appropriate material is crucial. ACRONI's Nicrodur, viewed from the perspective of mechanical treatment, can be easily operated. Nicrodur excellent plate flatness and narrow tolerances allow us to omit surface treatment for some types of industrial knives and wear parts. We save time and money. According to our measurments the lifetime of parts, produced using Nicrodur and Nicroter is up to three times longer in comparison to other steels. To avoid abrasive wear on industrial knives and wear parts, we recommend welding on most exposed parts. Using Acroni's wear resistant plates enables us to boost the performance of our clients.«

PERFORMANCE and DURABILITY in PERFECT BALANCE

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AC

RO

NI-

NIC

RO

DU

R-0

3201

6-EN

G

Acroni, d. o. o.Cesta Borisa Kidriča 44SI-4270 JeseniceT:+386 4 584 10 00F:+386 4 584 11 11E:info@acroni.siwww.acroni.si