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Parameters of heat treatment processes applied to experimental plain carbon steels
| AISI Steel Grade | Austenitizing Temp. (°C) | Austempering Temp. Bs (°C) |
Martensitic start Temp. Ms (°C) |
|---|---|---|---|
| 1020 | 900 | 520 | 420 |
| 1030 | 870 | 495 | 363 |
| 1040 | 850 | 450 | 352 |
| 1045 | 840 | 395 | 331 |
| 1050 | 820 | 370 | 300 |
