Steel Library/CPM S125V
Powder Metallurgy Steel
Expert
Super Premium

CPM S125V

Heat Treatment Specifications

Austenitizing

Temperature1175°C(2147°F)
Soak Time20 minutes

Tempering

Temperature290°C(554°F)
Time120 minutes
Cycles2x

Quench Medium

plate

Target Hardness

63 - 65 HRC

Performance Characteristics

Toughness2.5/10
Edge Retention10/10
Corrosion Resistance7/10
Ease of Sharpening2/10
Overall Score21.5/40

Interesting Facts

  • 1Developed 2004 by Crucible
  • 2Originally for dental industry
  • 312% vanadium - highest in production knife steels
  • 4Requires diamond stones to sharpen

Famous Uses

Custom hunting knives

Best For

Custom hunting knives
Maximum edge retention
Slicing applications

Similar Steels

Not Recommended For

  • Sharpening without diamonds
  • Impact loads
  • Common sense

Expert Tips

  • 1Requires diamond stones
  • 2Coarse edges (400-1000 grit) perform best
  • 3Not for sharpening novices
  • 4Brittle - careful with impact

Track Your CPM S125V Heat Treats

Start logging your heat treatment cycles with CPM S125V. Track what works, compare results, and repeat your best blades.

© 2026 BladesmithHub. All rights reserved.