Steel Library/GIN-1 / G2
Stainless Steel
Beginner Friendly
Mid-range

GIN-1 / G2

Heat Treatment Specifications

Austenitizing

Temperature1050°C(1922°F)
Soak Time15 minutes

Tempering

Temperature180°C(356°F)
Time120 minutes
Cycles2x

Quench Medium

oil

Target Hardness

57 - 58 HRC

Performance Characteristics

Toughness6.5/10
Edge Retention6/10
Corrosion Resistance7/10
Ease of Sharpening7.5/10
Overall Score27/40

Interesting Facts

  • 1Hitachi Gingami-1 ('Silver Paper 1') - Spyderco's first steel (1981)
  • 2G-2 = Spyderco's name when they couldn't use 'Gingami'
  • 3'G-2' also stood for 'Good Sh*t' internally
  • 4Best available Japanese production steel in 1981
  • 5Carpenter later made CTS-BD1N as American version
  • 6Delica switched from G-2 marking to GIN-1 in 1994

Famous Uses

Early Spyderco Delica (1990-1994)
Spyderco Endura (original)
1980s Spyderco knives

Best For

Scissors
Kitchen knives
Tactical knives

Similar Steels

Not Recommended For

  • Extreme wear
  • Premium segment
  • Heavy work

Expert Tips

  • 1Ingot manufacturing
  • 2Improved corrosion as trade-off for hardness
  • 3Good for kitchen use

Track Your GIN-1 / G2 Heat Treats

Start logging your heat treatment cycles with GIN-1 / G2. Track what works, compare results, and repeat your best blades.

© 2026 BladesmithHub. All rights reserved.