|
|
c碳 |
si硅 |
mn錳 |
s硫 |
p磷 |
cr鉻 |
ni鎳 |
mo鉬 |
n氮 |
≤0.05 |
≤0.70 |
≤1.50 |
≤0.015 |
≤0.04 |
12.0-14.0 |
3.50-4.50 |
0.30-0.70 |
≥0.02 |