| Sr加入量 | Sr加入后时间 | ΔTER (℃) |
| 0.02% Sr | 小于5 min | 1.2 |
| 0.02% Sr | 0.5 h | 7.4 |
| 0.02% Sr | 1 h | 7.8 |
| 0.02% Sr | 2 h | 8.0 |
| 0.04% Sr | 0.5 h | 7.7 |
| 0.04% Sr | 2 h | 7.2 |