CPM-S30V vs Böhler M390
A side-by-side of two stainless knife steels on the specs that decide a purchase. CPM-S30V is a powder-metallurgy stainless steel; Böhler M390 is a powder-metallurgy stainless steel.
| Property | CPM-S30V | Böhler M390 | Edge |
|---|---|---|---|
| Hardness (HRC) | 58-61 | 60-62 | — |
| Edge retention | high | very high | Böhler M390 leads |
| Corrosion resistance | high | very high | Böhler M390 leads |
| Toughness | medium | medium | about the same |
| Ease of sharpening | hard | hard | — |
| Price tier | Premium | Super / high-end | — |
CPM-S30V suits edc / folders, kitchen; Böhler M390 suits edc / folders, kitchen. Neither is universally "better" — match the steel to the job, and remember heat treat matters as much as the alloy.
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Full profiles: CPM-S30V · Böhler M390 · best steel by purpose