| Metric | K390 | D2 |
|---|---|---|
| Toughness | 5.5 | 3.5 |
| Edge Retention | 7.5 | 5 |
| Corrosion Resistance | 4 | 4.5 |
| Avg/Target HRC | 64.0 | 59.8 |
| Manufacturer | Bohler-Uddeholm | Various |
| Category | High Alloy Tool Steel | High Alloy Tool Steel |
K390 vs D2
K390 vs D2 knife steel comparison using sourced ratings and hardness data from Knife Steel Nerds and SteelHardnessLab.
Quick Take
- Toughness: K390 leads (5.5/10 vs 3.5/10 for D2).
- Edge retention: K390 leads (7.5/10 vs 5/10 for D2).
- Corrosion resistance: D2 leads (4.5/10 vs 4/10 for K390).
Also searched as: K390 (Bohler K390, K390 PM)
FAQ
Is K390 better than D2 overall?
Toughness: K390 leads (5.5/10 vs 3.5/10 for D2). Edge retention: K390 leads (7.5/10 vs 5/10 for D2). Corrosion resistance: D2 leads (4.5/10 vs 4/10 for K390).
Where do these values come from?
Ratings are attributed to Knife Steel Nerds; hardness measurements are attributed to SteelHardnessLab testing by u/679696 and u/Skylark427.