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Materials » Other » Carbon steels

Chemical Composition :

Steel Grade

Chemical composition (%) 

C

Si

Mn

Ni

Cr

P

S

S45C

0.42 ~ 0.48

0.15 ~ 0.35

0.6 ~ 0.9

0.20

0.20

0.030 max

0.035 max

S50C

0.47 ~ 0.53

0.15 ~ 0.35

0.6 ~ 0.9

0.2

0.2

0.030 max

0.035 max

S55C

0.52 ~ 0.58

0.15 ~ 0.35

0.6 ~ 0.9

0.2

0.2

0.030 max

0.035 max

SCM440

0.38 ~ 0.45

0.17 ~ 0.37

0.5 ~ 0.8

0.25

1.2

0.030 max

0.03   max

Physical Properties: 

Steel Grade

Tensile strength

Melting limit

Relative stretchability

N/mm²

N/mm²

(%)

S45C

570 ~ 690

345 ~ 490

17.0

S50C

590 ~ 705

355 ~ 540

15

S55C

610 ~ 740

365 ~ 560

13

SCM440

1080

930

12

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