成分 |
最小值 |
最大值 |
公称值 |
碳 C |
0.18 |
0.24 |
- |
硅 Si ①
|
- |
0.25 |
- |
锰 Mn |
1.1 |
1.4 |
- |
磷 P |
- |
0.025 |
- |
硫 S |
- |
0.025 |
- |
铜 Cu |
- |
0.25 |
- |
氮 N |
- |
0.012 |
- |
铝 Al |
0.025 |
0.05 |
- |
①根据协议,可设定Si含量为0.14~0.25%,以确保适合镀锌。( According to agreement, an range of 0.14% to 0.25% for the SI share can be determined to ensure suitability for the melting dive.)