Table 2.
The phase transition points of the three steels.
| Steel | As (°C) | Af (°C) | Ms (°C) | Mf (°C) |
|---|---|---|---|---|
| 0Cu-steel | 687 | 790 | 255 | 100 |
| 1Cu-steel | 674 | 770 | 241 | 91 |
| 3Cu-steel | 674 | 763 | 190 | 85 |
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