Powder Metallurgy Steel
Intermediate
Premium

CPM 4V

Heat Treatment Specifications

Austenitizing

Temperature1080°C(1976°F)
Soak Time25 minutes

Tempering

Temperature204°C(399°F)
Time120 minutes
Cycles2x

Quench Medium

plate

Target Hardness

62 - 64 HRC

Performance Characteristics

Toughness7/10
Edge Retention7.5/10
Corrosion Resistance4/10
Ease of Sharpening4/10
Overall Score22.5/40

Interesting Facts

  • 1Crucible development - sits between 3V and M4
  • 2Designed for powder compaction tooling originally
  • 361-63 HRC with proper cryogenic treatment
  • 4Fine vanadium carbides for toughness + wear resistance
  • 5Very popular in custom knife community
  • 6Easier to grind than M4, tougher than M4

Famous Uses

Bushcraft knives
Tactical fixed blades
Competition chopping knives

Best For

Light to medium-use knives
High-impact applications
Hard-use fixed blades

Similar Steels

CPM 3V

Tougher, but worse wear resistance

CPM CruWear

Even more wear, less toughness

Vanadis 4E

European equivalent with similar properties

Not Recommended For

  • Marine environment (rusts)
  • Budget projects
  • Only toughness needed (3V is better)

Expert Tips

  • 1Similar to Vanadis 4E
  • 2Vanadium carbides provide excellent wear resistance
  • 3PM process improves toughness

Track Your CPM 4V Heat Treats

Start logging your heat treatment cycles with CPM 4V. Track what works, compare results, and repeat your best blades.

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