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Comparison Table of Structural Alloy Steel Grades

Structural alloy steel has higher tensile strength, fatigue strength, ductility and toughness. Structural alloy steel castings are used for machine tool parts, ship parts, vehicle parts and aircraft parts, etc.

The following is the main content of normal structural alloy steel grades. Our Dandong Foundry hope this comparison table of materials to be helpful to the buyers and suppliers of steel castings.

China

America

Japan

Germany

British

France

Russia

International standard

GB

AST

JIS

DIN/DINEN

BS/BSEN

NF/NFEN

ГOCT

ISO 630

20Mn2

1524

SMn420

P355GH

0355GH

P0355GH

--

22Mn6

15Cr

5115

SCr415

17Cr3

527A17

--

15x

--

20Cr

5120

SCr420

20Cr4

20Cr4

--

20x

20Cr4

30Cr

5130

SCr430

34Cr4

34Cr4

34Cr4

30x

34Cr4

40Cr

5140

SCr440

41Cr4

41Cr4

41Cr4

40x

41Cr4

45Cr

5145

SCr445

41Cr4

41Cr4

41Cr4

45x

41Cr4

30CrMo

4130

SCM430

25CrMo4

25CrMo4

25CrMo4

30xM

25CrMo4

35CrMo

4317

SCM435

34CrMo4

34CrMo4

34CrMo4

35xM

34CrMo4

42CrMo

4140

SCM440

42CrMo4

42CrMo4

42CrMo4

38xM

42CrMo4

38CrMoA1

--

SCM645

41CrA1Mo7

905M39

--

38x2MIoA

41CrA1Mo7

50CrVA

6150

SCP10

51CrV4

51CrV4

51CrV4

50xФA

51CrV4

40CrMnMo

4140
4142

SCM440

42CrMo4

42CrMo4
708Mn40

42CrMo4

--

42CrMo4

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