Tel :+86-510-81025508E-mail:Annie.yin@huijinchina.com
| Supply condition Steel grade | Cold finished(Hard)( BK) | Cold drawn and stress-relieved(BK+S) | HardnessHB | |||
| Tensile strength MPa | Elongation(%) | Tensile strength MPa | Yield strength MPa | Elongation(%) | ||
| 20# | ≥550 | ≥8 | ≥520 | ≥375 | ≥12 | 175 |
| 45# | ≥650 | ≥5 | ≥600 | ≥520 | ≥12 | 207 |
| St52 | ≥640 | ≥5 | ≥600 | ≥520 | ≥15 | 190 |
| 25Mn | ≥640 | ≥5 | ≥600 | ≥510 | ≥15 | 195 |
| 27SiMn | ≥840 | ≥5 | ≥800 | ≥720 | ≥10 | 230 |