Used in the manufacture of flat springs, helical springs, torsion bars, springs, springs for motor vehicles according to the type – operating at low or high loads.
| PN | EN | Werkstoff nr | AISI |
|---|---|---|---|
| 60S2 | 60Si7 | 1.5027 | |
| 50HS | |||
| 50HF | 51CrV4 | 1.8159 | 6150 |