化学成分
**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
|
力学性能
**号
|
拉力强度MPa
|
屈服点MPa
|
伸长率(%)
|
15CrMo
|
440~640
|
235
|
21
|