C

Si

Cr

Mn

P

S

Ni

Mo

V

标准

0.52~0.60

0.2~0.5

0.70~0.90

0.6~0.90

≤0.015

≤0.010

1.40~1.60

0.20~0.30

0.05~0.10

实际

0.55

0.30

0.78

0.72

0.009

0.005

1.45

0.22

0.09