合***号 |
化学成份% |
|||||||||
C |
S |
P |
Mn |
Si |
Ni |
Mo |
Cu |
Fe |
||
1J50 |
≤0.03 |
≤0.02 |
≤0.02 |
0.3~0.60 |
0.15~0.3 |
49~50.5 |
|
≤0.2 |
余量 |
|
1J79 |
≤0.03 |
≤0.02 |
≤0.02 |
0.6~1.10 |
0.3~0.5 |
78.5~80 |
3.8~4.1 |
≤0.2 |
余量 |
|
1J85 |
≤0.03 |
≤0.02 |
≤0.02 |
0.3~0.60 |
0.15~0.3 |
79.0~81 |
4.8~5.2 |
≤0.2 |
余量 |