Technical Summary
- Category: Stainless
- Manufacturer: Bohler-Uddeholm
- Process: PM
- Ratings: Toughness 3.5, Edge 6, Corrosion 8
- HRC Range: 60-62
Source attribution: Knife Steel Nerds and SteelHardnessLab.
Stainless / Bohler-Uddeholm
M390
Toughness 3.5/10, Edge Retention 6/10, Corrosion Resistance 8/10. Target hardness range: 60-62 HRC.
Known aliases: Bohler M390, M390 PM Stainless.
Chemical Composition
| C | 1.9% |
|---|---|
| Cr | 20.0% |
| V | 4.0% |
| Mo | 1.0% |
| W | 0.6% |
SteelHardnessLab Testing Data
Testing recognition: u/679696 and u/Skylark427.
| Manufacturer | Samples | Avg HRC |
|---|---|---|
| Spyderco | 1 | 63.8 |
| Custom Knife Factory | 2 | 61.8 |
| Penrose | 1 | 61.7 |
| Asher Knives | 1 | 60.6 |
| Vero | 1 | 60.5 |
| Kubey | 2 | 60.4 |
| Remette | 1 | 60.4 |
| TwoSun | 1 | 59.8 |
| Chaves | 2 | 58.9 |
| Sharp By Design | 1 | 58.4 |
Heat Treat Data
Austenitize 2140F, quench PLATE, temper 365F.