规格 |
C |
B |
Si |
Cr |
Ni |
Mo |
Fe |
HRC |
Fe-35 |
0.4~0.7 |
1.5~2.5 |
3.0~4.5 |
18.0~20.0 |
24.0~30.0 |
4.0~5.0 |
余量 |
36~42 |