Heat treatment cycle | Mechanical properties | |||
Hardness (Wb) | Rm (MPa) | Rp (MPa) | A5 (%) | |
1 | 13.0 | 227 | 188 | 12.67 |
2 | 13.0 | 229 | 191 | 12.69 |
3 | 13.0 | 217 | 168 | 13.60 |
4 | 12.5 | 220 | 179 | 12.36 |