KnifeSteelDBknife steels, by spec

CPM-20CV vs Böhler M390

A side-by-side of two stainless knife steels on the specs that decide a purchase. CPM-20CV is a powder-metallurgy stainless steel; Böhler M390 is a powder-metallurgy stainless steel.

Last verified 2026-06-11

PropertyCPM-20CVBöhler M390Edge
Hardness (HRC)59-6260-62
Edge retentionvery highvery highabout the same
Corrosion resistancevery highvery highabout the same
Toughnessmediummediumabout the same
Ease of sharpeninghardhard
Price tierSuper / high-endSuper / high-end

CPM-20CV 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.

Shop CPM-20CV knives on Amazon →
Shop Böhler M390 knives on Amazon →

As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.

Full profiles: CPM-20CV · Böhler M390 · best steel by purpose