鋼級(jí) Grade |
C≤ |
Mn |
P≤ |
S≤ |
Si≥ |
Cr≤ |
Cu≤ |
Mo |
Ni≤ |
V≤ |
A |
0.25 |
0.27-0.93 |
0.035 |
0.035 |
0.10 |
0.40 |
0.40 |
0.15 |
0.40 |
0.08 |
B |
0.30 |
0.29-1.06 |
0.035 |
0.0 |
0.10 |
0.40 |
0.40 |
0.15 |
0.40 |
0.08 |
C |
0.35 |
0.29-1.06 |
0.035 |
0.035 |
0.10 |
0.40 |
0.40 |
0.15 |
0.40 |
0.08 |