c

si

mn

p

s

cr

ni

cu

0.42~0.50

0.17~0.37

0.50~0.80

≤0.040

≤0.045

≤0.25

≤0.25

≤0.25

牌号

                             化学成分

c

si

mn

p

s

  ni

  cr

  cu

50mn

0.48-0.56

0.17-0.37

0.70-1.00

 ≤0.035

 ≤0.035

 ≤0.30

  ≤0.25

   ≤0.25

牌号

c

si

mn

cr

ni

cu

60mn

0.57-0.65

0.17-0.37

0.70-1.00

≤0.25

≤0.30

≤0.25

c

si

mn

s

p

cr

ni

cu

0.62-0.70

0.17-0.37

0.90-1.20

≤0.035

≤0.035

≤0.25

≤0.25

≤0.25