Practical for the production of machine parts with required surface layer with high hardness and ductile core, such as gears, screws, shafts, sleeves, large size – parts to be very high pressures and loads.
| PN | EN | Werkstoff nr | AISI |
|---|---|---|---|
| 16HG | 16MnCr5 | 1.7131 | 5115 |
| 15HN | 17CrNi6-6 | 1.5918 | |
| 17HNM | 18CrNiMo7-6 | 1.6587 | 4820 |
| 18GHT | |||
| 20HG | 20MnCr5 | 1.7147 | 5120 |
| 18H2N2 | 19CrNi8 | 1.2722 |