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Steel Products

Wear Resistant Steel

Wear Resistant Steel
  • ProductsWear Resistant Steel

Detailed

l   Product overview
High strength low alloy wear-resistant steel is one of high quality special material, which is used in mining machinery, engineering machinery, cement and metallurgy industry. High-performance wear-resistant steel is one of the key programs in the materials field of "twelfth five-year" national science and technology support plan.

l  Steel Grade and Size
Since 2009, the quenching process was adopted for wear resistant steel, the steel grades of wear resistant steel have developed into a series and the size also covered a large range from narrow to wide and from thin to thick.

The typical steel grade:
NM360, NM400, NM450, NM500, NM550, NM600 and NH1250

       Size:
thickness, 5-60mm, width,1600-3200mm, length, 6000-24000mm

Delivery status:
quenching + tempering

Execution standard:
technical agreement, enterprise standard Q / 3201 NG215-2013, Chinese standard GB/T24186-2009

1. Domestic and overseas steel grade

 

NISCO

SSAB

JFE

DILLIDUR

ThyssenKrupp

Ruukki

NM360

 

EH360

 

 

 

NM400

HARDOX400

EH400

400V

XAR400

Raex400

NM450

HARDOX450

 

450V

XAR450

Raex450

NM500

HARDOX500

EH500

500V

XAR500

Raex500

NM550

HARDOX550

 

 

 

 

2. Chemical composition and properties
Chemical composition /wt%

 

 

C

Si

Mn

P

S

Cr

Mo

B

N

H

Ceq

NM360/

NM400

0.20

0.40

1.50

0.012

0.005

0.35

0.30

0.002

0.005

0.00025

0.53

NM450

0.22

0.60

1.50

0.012

0.005

0.80

0.30

0.002

0.005

0.00025

0.62

NM500

0.30

0.60

1.00

0.012

0.002

1.00

0.30

0.002

0.005

0.0002

0.65

NM550

0.35

0.40

1.20

0.010

0.002

1.00

0.30

0.002

0.0045

0.0002

0.72

 Property indexes

 

Steel Grade

Yield strength /MPa

Tensile strength /MPa

Elongation A50/%

Brinell hardness HBW10/3000

Longitudinal

impact /J

-20

90°cold bend

NM360

≥900

≥1050

≥12

320-390

≥21

D≥3a qualified

NM400

≥950

≥1200

≥12

380-440

≥21

NM450

≥1050

≥1250

≥7

420-490

≥21

D≥4.5a qualified

NM500

≥1100

≥1350

≥6

≥470

≥17

D≥6a qualified

NM550

 

 

 

≥530

 

Note: 1. Ultra-low temperature and high toughness wear-resistant steel plates can be produced according to customer’s requirements (-40, -60impact energy is greater than 20J)
2.
By comparative analysis, the performance of wear-resistant steel plates NM400 produced in NISCO is about three times than Q345E steel. Properties of wear-resistant steel at all levels see tables below.

Typical size and properties of NM360

 

Thickness./mm

ReL

/MPa

Rm /MPa

A/%

Surface hardness/ HBW10/3000

-20impact /J

single value 1

single value 2

single value 3

average

single value 1

single value 2

single value 3

average

20

1050

1160

19.0

360.0

356.0

363.0

360.0

70

58

68

65

25

1020

1180

18.5

376.0

380.0

369.0

375.0

62

40

54

52

30

1040

1180

17.0

366.0

372.0

370.0

369.0

71

63

60

65

40

1020

1160

18.0

368.0

374.0

362.0

368.0

67

66

70

68

Typical size and properties of NM400

 

Thickness./mm

ReL

/MPa

Rm /MPa

A/%

Surface hardness / HBW10/3000

-20impact /J

single value 1

single value 2

single value 3

average

single value 1

single value 2

single value 3

average

20

1100

1350

17.0

416.0

411.0

408.0

412.0

47

41

53

47

30

1060

1360

16.5

406.0

400.0

390.0

399.0

48

44

42

45

32

1080

1370

15.5

393.0

402.0

418.0

404.0

39

39

41

40

35

1090

1330

16.5

412.0

415.0

410.0

412.0

46

40

42

43

40

1230

1400

15.0

402.0

389.0

411.0

401.0

38

45

38

40

50

1130

1410

15.0

401.0

412.0

396.0

403.0

44

46

39

43

Typical size and properties of NM450

 

Thickness./mm

ReL

/MPa

Rm /MPa

A/%

Surface hardness / HBW10/3000

-20impact /J

single value 1

single value 2

single value 3

average

single value 1

single value 2

single value 3

average

8

1250

1460

16

444

447

443

445

42

38

41

40

12

1290

1470

17

461

461

462

462

43

46

42

43

20

1370

1450

17

472

470

478

473

42

40

43

42

25

1230

1480

16.5

467

463

465

465

45

42

41

43

l   Application achievements

Wear resistant plates produced in NISCO have successfully pass the performance evaluation of CATERPILLAR which is a well-know company in engineering machinery industry and SGC test, and then tapped into the international market successfully.. Zhangjiakou coal mining machinery co., Ltd. and Northwest Tiandi Benniu co., Ltd , which are the leading company in coal machinery industry, has select the wear resistant plates from NISCO through evaluation. Since 2009, NISCO has produced tens of thousands of tons of quenched and tempered steel plates. And won many national invention patents, and the key production technology has been awarded the first prize of Jiangsu province scientific and technological progress.

l   After-sales service

Continual improvement on technology and quality is our constant pursuit. Providing customers with high quality products is our eternal goal, and offering efficient and convenient technical support and after-sales service is our unchanging promise. the reply will be given within 24 hours and service technicians will be on site within 72 hours upon receiving the quality claims from the customers