Technical Summary
- CategoryHigh Alloy Tool Steel
- ManufacturerBohler-Uddeholm
- ProcessPM
- HRC Range62-65
Ratings: Toughness 5.5, Edge 7.5, Corrosion 4
Source attribution: Knife Steel Nerds and SteelHardnessLab.
High Alloy Tool Steel / Bohler-Uddeholm
Toughness 5.5/10, Edge Retention 7.5/10, Corrosion Resistance 4/10. Target hardness range: 62-65 HRC.
Known aliases: K390.
Equivalent/related family: K390.
Ratings: Toughness 5.5, Edge 7.5, Corrosion 4
Source attribution: Knife Steel Nerds and SteelHardnessLab.
| C | 2.47% |
|---|---|
| Cr | 4.2% |
| V | 9.0% |
| Mo | 3.8% |
| W | 1.0% |
| Co | 2.0% |
Testing recognition: u/679696 and u/Skylark427.
| Manufacturer | Samples | Avg HRC |
|---|---|---|
| Spyderco | 1 | 65.3 |
Related steels with comparable category and use profile.