| P20 | 30–32 (Pre-hardened) | ✦ Low | ✦✦✦ Good | ✦✦ Good | Plastic molds, prototype & medium runs |
| H13 | 48–52 (After heat treatment) | ✦✦ Moderate | ✦✦ Moderate | ✦✦ Moderate | Die casting molds, high-temp plastic molds |
| S7 | 54–56 (After heat treatment) | ✦ Low | ✦✦ Moderate | ✦ Moderate | Impact parts, cores, ejector components |
| S136 / 420SS | 48–52 (After heat treatment) | ✦✦✦✦ High | ✦✦ Moderate | ✦✦✦ Excellent | Medical molds, food-grade, corrosive plastics |
| NAK80 | 38–43 (Pre-hardened) | ✦✦ Moderate | ✦✦✦✦ Very Good | ✦✦✦✦ Excellent | High-gloss mold cavities, EDM finishing |
| D2 | 58–60 (After heat treatment) | ✦ Low | ✦ Moderate | ✦ Moderate | Cutting dies, trimming tools, metal stamping |