【化学成分】(质量分数)(%)
等级 |
C |
Mn |
Si |
P |
S |
V |
Nb |
Ti |
Al |
Cr |
Ni |
A |
≤0.20 |
1.00~1.60 |
≤0.55 |
≤0.045 |
≤0.045 |
0.02~0.20 |
0.015~0.060 |
0.02~0.20 |
- |
≤0.30 |
≤0.70 |
B |
≤0.20 |
1.00~1.60 |
≤0.55 |
≤0.040 |
≤0.040 |
0.02~0.20 |
0.015~0.060 |
0.02~0.20 |
- |
≤0.30 |
≤0.70 |
C |
≤0.20 |
1.00~1.60 |
≤0.55 |
≤0.035 |
≤0.035 |
0.02~0.20 |
0.015~0.060 |
0.02~0.20 |
≥0.015 |
≤0.30 |
≤0.70 |
D |
≤0.20 |
1.00~1.60 |
≤0.55 |
≤0.030 |
≤0.030 |
0.02~0.20 |
0.015~0.060 |
0.02~0.20 |
≥0.015 |
≤0.30 |
≤0.70 |
E |
≤0.20 |
1.00~1.60 |
≤0.55 |
≤0.025 |
≤0.025 |
0.02~0.20 |
0.015~0.060 |
0.02~0.20 |
≥0.015 |
≤0.30 |
≤0.70 |