Tool Steel
Advanced
Mid-range

SKD12

Heat Treatment Specifications

Austenitizing

Temperature960°C(1760°F)
Soak Time30 minutes

Tempering

Temperature200°C(392°F)
Time120 minutes
Cycles2x

Quench Medium

air

Target Hardness

62 - 63 HRC

Performance Characteristics

Toughness6.5/10
Edge Retention7.5/10
Corrosion Resistance3.5/10
Ease of Sharpening6.5/10
Overall Score24/40

Interesting Facts

  • 1JIS cold work tool steel
  • 2Similar to D3/A2 tool steel
  • 3Good balance of wear and toughness
  • 4Used in Japanese manufacturing industry
  • 5Higher chromium than SKD11 (D2)
  • 6Air-hardening for easy heat treatment

Famous Uses

Japanese industrial dies
Precision cutting tools

Best For

Fixed blades
Production knives
Tool applications

Similar Steels

Not Recommended For

  • Marine environment
  • Budget
  • Beginners

Expert Tips

  • 1Japanese A2 equivalent
  • 2Air-hardening steel
  • 3Good toughness
  • 4Ingot manufacturing

Track Your SKD12 Heat Treats

Start logging your heat treatment cycles with SKD12. Track what works, compare results, and repeat your best blades.

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