1. 化学成分:
1.2 9Cr2MoV化学成分如下:
C:0.85-0.95
Si:0.25-0.45
Mn:0.20-0.35
Cr:1.70-2.10
Mo:0.20-0.30
V:0.10-0.20
Ni+Cu≤0.25
S+P≤0.025