| Composants chimiques | |||||||||||
| Nom de matériel | C | S | P | Si | Mn | Cr | Ni | Mo | Cu | HRC | |
| Extra haute Chrome | 2.8-3.1 | < 0, 05 | < 0, 06 | 0, 8 | 0, 9 | 26 | < 1, 0 | < 1, 0 | < 0, 4 | 58-62° | |
| Haut de Chrome | 2.8-3.1 | < 0, 05 | < 0, 06 | 0, 8 | 0, 9 | 16 | 50-52° | ||||
| Chrome inférieure | 2.8-3.1 | < 0, 05 | < 0, 06 | 0, 8 | 0, 9 | 5 | 45-48° | ||||
| Haut manganèse | 1.2 | < 0, 05 | < 0, 06 | 16 | 45° | ||||||
| acier allié casting | 1.2 | < 0, 05 | < 0, 06 | 2.0 | 1 | 45° | |||||