| Klasse | ISO-Bereich | Kobalt% | Dichte g/cm3 | Härte HRA |
| YG8 | K30 | 8 | 14.8 | 89.5 |
| YG6 | K30 | 6 | 14.95 | 90.5 |
| YG6X | K10 | 6 | 14.95 | 91.5 |
| YL10.2 | K30 | 10 | 14.5 | 91.8 |
| YG15 | K40 | 15 | 14 | 87.5 |