| Metric | K390 | CPM-154 |
|---|---|---|
| Toughness | 5.5 | 5 |
| Edge Retention | 7.5 | 4.5 |
| Corrosion Resistance | 4 | 7 |
| Avg/Target HRC | 64.0 | 60.0 |
| Manufacturer | Bohler-Uddeholm | Crucible Industries |
| Category | High Alloy Tool Steel | Stainless |
K390 vs CPM-154
K390 vs CPM-154 knife steel comparison using sourced ratings and hardness data from Knife Steel Nerds and SteelHardnessLab.
Quick Take
- Toughness: K390 leads (5.5/10 vs 5/10 for CPM-154).
- Edge retention: K390 leads (7.5/10 vs 4.5/10 for CPM-154).
- Corrosion resistance: CPM-154 leads (7/10 vs 4/10 for K390).
Also searched as: K390 (Bohler K390, K390 PM)
Also searched as: CPM-154 (CPM154, CPM 154)
FAQ
Is K390 better than CPM-154 overall?
Toughness: K390 leads (5.5/10 vs 5/10 for CPM-154). Edge retention: K390 leads (7.5/10 vs 4.5/10 for CPM-154). Corrosion resistance: CPM-154 leads (7/10 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.