| GRADE | ISO | DENSITY | TRS | HARDNESS |
| (g/cm³) | (N/mm²) | (HRA) | ||
| YT15 | P10 | 11.1-11.6 | 1500 | 91.5 |
| YT14 | P20 | 11.2-11.8 | 1550 | 91 |
| YT5 | P30 | 12.5-13.2 | 1600 | 89.5 |
| YW1 | M10 | 12.7-13.5 | 1800 | 91.5 |
| YW2 | M20 | 12.5-13.5 | 1700 | 90.5 |
| YG6X | K10 | 14.8-15.1 | 1800 | 91 |
| YG6A | K10 | 14.7-15.1 | 1800 | 91.5 |
| YG6 | K20 | 14.9 | 1780 | 90.5 |
| YG8 | K20 | 14.7 | 1900 | 89 |
