牌号

化学成分（％）

C

Si

Mn

P

S

Cr

Mo

Cu

Ni

V

Al

W

Nb

N

GB5310

15CrMoG

0.12-0.18

0.17-0.37

0.40-0.70

≤0.030

≤0.030

0.80-1.10

0.40-0.55

≤0.20

≤0.30

G

0.08-0.15

≤0.50

0.40-0.70

≤0.030

≤0.030

2.00-2.50

0.90-1.20

≤0.20

≤0.30

12Cr1MoVG

0.08-0.15

0.17-0.37

0.40-0.70

≤0.030

≤0.030

0.90-1.20

0.