元素 |
碳C | 硅Si | 錳Mn | 鉻Cr | 鉬Mo | 釩V |
含量 |
0.4 | 0.3 | 1.45 | 2 | 0.2 | -- |
大同PX88熱膨脹系數(shù)(X10-6℃) |
|||||
30-100℃ |
30-200℃ | 30-300℃ | 30-400℃ | 30-600℃ | |
PX88 |
11.9 |
12.7 | 13.1 | 13.5 | 14 |
SCM440 |
11.9 |
12.7 | 13.2 | 14.2 |