Crucible Industries / USA

CPM S30V

Stainless Powder Metallurgy Steel58–61 HRCCrucible Particle Metallurgy (CPM)

Composition

Core alloying elements define the baseline trade-off between wear resistance, corrosion behavior, and toughness.

Material Overview

CPM S30V was developed by Crucible Industries in collaboration with renowned knife maker Chris Reeve specifically for knife applications. It became one of the most influential modern knife steels due to its balanced performance profile. The CPM process creates a fine and uniform carbide structure, improving toughness and wear resistance compared to traditional stainless steels. S30V remains one of the most widely used premium steels in production and custom knives because it offers strong all-around performance without extreme weaknesses.

Performance Radar

Use four core metrics to understand the usable operating envelope of this steel at a glance.

Edge Retention
Toughness
Corrosion Resistance
Sharpenability
Edge Retention
8.0
Toughness
7.0
Corrosion Resistance
8.0
Sharpenability
7.0

Advantages

  • Excellent overall balance
  • Strong edge retention
  • Good corrosion resistance
  • Better toughness than many older stainless steels
  • Widely trusted premium knife steel

Disadvantages

  • Harder to sharpen than basic stainless steels
  • Not as tough as MagnaCut or CPM 3V
  • Edge retention lower than S90V / S110V class steels
  • Premium cost compared to mid-range steels

At A Glance

CPM S30V is a premium powder metallurgy stainless steel developed specifically for knives, offering an excellent balance of edge retention, toughness, and corrosion resistance.
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