Alloy structural steel

Alloy structural steel

Alloy structural steel, used as a mechanical part and a variety of engineering components and contains one or more of a certain amount of alloying elements of steel.

Alloy structural steel, due to the appropriate hardenability, the appropriate metal heat treatment, the microstructure of uniform sorbite, bainite or fine pearlite, which has a high tensile strength and yield strength (Typically around 0.85), higher toughness and fatigue strength, and lower toughness - brittle transition temperatures can be used to make machine parts with larger cross-section dimensions.

We can supply Alloy structural steel grades are as follows:

Grade

C

Si ≤

Mn

P ≤

S ≤

Cr

Mo ≤

Ni ≤

Cr+Mo+Ni ≤

25CrMo4

0.22~0.29

0.40

0.60~0.90

0.035

0.035

0.90~1.20

0.15~0.30

-

-

25CrMoS4

0.22~0.29

0.40

0.60~0.90

0.035

0.020~0.40

0.90~1.20

0.15~0.30

-

-

28Mn6

0.25~0.32

0.40

1.30~1.65

0.035

0.035

≤ 0.40

1.10

0.40

0.60

30CrNiMo8

0.26~0.34

0.40

0.30~0.60

0.035

0.035

1.80~2.20

0.30~0.50

 

-

34Cr4

0.30~0.37

0.40

0.60~0.90

0.035

0.035

0.90~1.20

-

1.80~2.20

-

34CrS4

0.30~0.37

0.40

0.60~0.90

0.035

0.020~0.40

0.90~1.20

-

-

-

34CrMo4

0.30~0.37

0.40

0.60~0.90

0.035

0.035

0.90~1.20

0.15~0.30

-

-

34CrMoS4

0.30~0.37

0.40

0.60~0.90

0.035

0.020~0.40

0.90~1.20

0.15~0.30

-

-

34CrNiMo6

0.30~0.38

0.40

0.50~0.80

0.035

0.035

1.30~1.70

0.15~0.30

-

-

36CrNiMo4

0.32~0.40

0.40

0.50~0.80

0.035

0.035

0.90~1.20

0.15~0.30

1.30~1.70

-

36CrNiMo16

0.32~0.39

0.40

0.30~0.60

0.035

0.025

1.60~2.00

0.25~0.45

0.90~1.20

-

37Cr4

0.34~0.41

0.40

0.60~0.90

0.035

0.035

0.90~1.20

-

3.60~4.10

-

37CrS4

0.34~0.41

0.40

0.60~0.90

0.035

0.020~0.40

0.90~1.20

-

-

-

38Cr2

0.35~0.42

0.40

0.50~0.80

0.035

0.035

0.40~0.60

-

-

-

38CrS2

0.35~0.42

0.40

0.50~0.80

0.035

0.020~0.40

0.40~0.60

-

-

-

41Cr4

0.38~0.45

0.40

0.60~0.90

0.035

0.035

0.90~1.20

-

-

-

41CrS4

0.38~0.45

0.40

0.60~0.90

0.035

0.020~0.40

0.90~1.20

-

-

-

42CrMo4

0.38~0.45

0.40

0.60~0.90

0.035

0.035

0.90~1.20

0.15~0.30

-

-

42CrMoS4

0.38~0.45

0.40

0.60~0.90

0.035

0.020~0.40

0.90~1.20

0.15~0.30

-

-

46Cr2

0.42~0.50

0.40

0.50~0.80

0.035

0.035

0.40~0.60

-

-

-

46CrS2

0.42~0.50

0.40

0.50~0.80

0.035

0.020~0.40

0.40~0.60

-

-

-

50CrMo4

0.46~0.54

0.40

0.50~0.80

0.035

0.035

0.90~1.20

0.15~0.30

-

-

51CrV4

0.47~0.55

0.40

0.70~1.10

0.035

0.035

0.90~1.20

 

-

-

C22E

0.17~0.24

0.40

0.40~0.70

0.035

0.035

≤ 0.40

0.10

0.40

0.63

C22R

0.17~0.24

0.40

0.40~0.70

0.035

0.020~0.40

≤ 0.40

0.10

0.40

0.63

C25E

0.22~0.29

0.40

0.40~0.70

0.035

0.035

≤ 0.40

0.10

0.40

0.63

C25R

0.22~0.29

0.40

0.40~0.70

0.035

0.020~0.40

≤ 0.40

0.10

0.40

0.63

C30E

0.27~0.34

0.40

0.50~0.80

0.035

0.035

≤ 0.40

0.10

0.40

0.63

C30R

0.27~0.34

0.40

0.50~0.80

0.035

0.020~0.40

≤ 0.40

0.10

0.40

0.63

C35E

0.32~0.39

0.40

0.50~0.80

0.035

0.035

≤ 0.40

0.10

0.40

0.63

C35R

0.32~0.39

0.40

0.50~0.80

0.035

0.020~0.40

≤ 0.40

0.10

0.40

0.63

C40E

0.37~0.44

0.40

0.50~0.80

0.035

0.035

≤ 0.40

0.10

0.40

0.63

C40R

0.37~0.44

0.40

0.50~0.80

0.035

0.020~0.40

≤ 0.40

0.10

0.40

0.63

C45E

0.42~0.50

0.40

0.50~0.80

0.035

0.035

≤ 0.40

0.10

0.40

0.63

C45R

0.42~0.50

0.40

0.50~0.80

0.035

0.020~0.40

≤ 0.40

0.10

0.40

0.63

C50E

0.47~0.55

0.40

0.60~0.90

0.035

0.035

≤ 0.40

0.10

0.40

0.63

C50R

0.47~0.55

0.40

0.60~0.90

0.035

0.020~0.40

≤ 0.40

0.10

0.40

0.63

C55E

0.52~0.60

0.40

0.60~0.90

0.035

0.035

≤ 0.40

0.10

0.40

0.63

C55R

0.52~0.60

0.40

0.60~0.90

0.035

0.020~0.40

≤ 0.40

0.10

0.40

0.63

C60E

0.57~0.65

0.40

0.60~0.90

0.035

0.035

≤ 0.40

0.10

0.40

0.63

C60R

0.57~0.65

0.40

0.60~0.90

0.035

0.020~0.40

≤ 0.40

0.10

0.40

0.63

JIS G4053 Alloy steel plate for machinery

Type

Grade

C

Si

Mn

P≤

S≤

Cr

Ni ≤

Mo

Mn alloy steel

SMn420

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.35

0.25

-

 

SMn433

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.35

0.25

-

 

SMn438

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.35

0.25

-

 

SMn443

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.35

0.25

-

Mn-Cr

SMnC420

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.35~0.70

0.25

-

 

SMnC443

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.35~0.70

0.25

-

Cr- alloy steel

SCr415

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.90~1.20

0.25

-

 

SCr420

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.90~1.20

0.25

-

 

SCr430

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.90~1.20

0.25

-

 

SCr435

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.90~1.20

0.25

-

 

SCr440

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.90~1.20

0.25

-

 

SCr445

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.90~1.20

0.25

-

Cr-Mo alloy steel

SCM415

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.90~1.20

0.25

0.15~0.25

 

SCM418

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.90~1.20

0.25

0.15~0.25

 

SCM420

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.90~1.20

0.25

0.15~0.25

 

SCM421

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.90~1.20

0.25

0.15~0.25

 

SCM425

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.90~1.20

0.25

0.15~0.30

 

SCM430

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.90~1.20

0.25

0.15~0.30

 

SCM432

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.90~1.20

0.25

0.15~0.30

 

SCM435

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.90~1.20

0.25

0.15~0.30

 

SCM440

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.90~1.20

0.25

0.15~0.30

 

SCM445

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.90~1.20

0.25

0.15~0.30

 

SCM822

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.90~1.20

0.25

0.35~0.45

Ni-Cr alloy steel

SNC236

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.50~0.90

1.00~1.50

-

 

SNC415

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.20~0.50

2.00~2.50

-

 

SNC631

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.60~1.00

2.50~3.00

-

 

SNC815

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.70~1.00

3.00~3.50

-

 

SNC836

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.60~1.00

3.00~3.50

-

Ni-Cr-Mo alloy steel

SNCM220

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.40~0.60

0.40~0.70

0.15~0.25

 

SNC240

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.40~0.60

0.40~0.70

0.15~0.30

 

SNCM415

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.40~0.60

1.60~2.00

0.15~0.30

 

SNCM420

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.40~0.60

1.60~2.00

0.15~0.30

 

SNCM431

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.60~1.00

1.60~2.00

0.15~0.30

 

SNCM439

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.60~1.00

1.60~2.00

0.15~0.30

 

SNCM447

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.60~1.00

1.60~2.00

0.15~0.30

 

SNCM616

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

1.40~1.80

2.80~3.20

0.40~0.60

 

SNCM625

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

1.00~1.50

3.00~3.50

0.15~0.30

 

SNC630

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

2.50~3.50

2.50~3.50

0.30~0.70

 

SNCM815

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.70~1.00

4.00~4.50

0.15~0.30

If you want to get the exact information of the grade, like Chemical composition, Property, available size, size tolerance, price and so on, please send email to : jw@steel-jw.com

Reference Link : High strength steel , common structural steel , Q&T,N,TMCP steel , High-strength steel , Weathering resistant steel