牌号 |
化学成分(质量分数)(%) |
||||||||
C |
Mn |
Si |
Cr |
Mo |
Ni |
Nb Ta |
S |
P |
|
15CrMo |
0.12~0.18 |
0.40~0.70 |
0.17~0.37 |
0.80~1.10 |
0.40~0.55 |
≤0.30 |
_ |
≤0.035 |
≤0.035 |