Stainless Steel
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BG-42

Heat Treatment Specifications

Austenitizing

Temperature1065°C(1949°F)
Soak Time30 minutes

Tempering

Temperature205°C(401°F)
Time120 minutes
Cycles2x

Quench Medium

oil

Target Hardness

60 - 61 HRC

Performance Characteristics

Toughness6/10
Edge Retention8/10
Corrosion Resistance7.5/10
Ease of Sharpening5/10
Overall Score26.5/40

Interesting Facts

  • 1Double vacuum melted martensitic stainless by Latrobe
  • 2Originally designed for aerospace - bearings and structural components
  • 3Chris Reeve hardened BG-42 to 60-61 HRC (higher than S30V at 58-59)
  • 4BG-42 Sebenzas now highly collectible, sell for more than S30V versions
  • 5Discontinued when Carpenter bought recipe, now CTS-B75P

Famous Uses

Chris Reeve Sebenza (1996-2002)
Spyderco Military sprint

Best For

Tactical and combat knives
Folding pocket knives
Balanced performance applications

Similar Steels

Not Recommended For

  • Budget projects (expensive)
  • Availability (rare)

Expert Tips

  • 1Vanadium forms strong carbides
  • 2Molybdenum enhances machinability
  • 3Careful heat treatment required

Track Your BG-42 Heat Treats

Start logging your heat treatment cycles with BG-42. Track what works, compare results, and repeat your best blades.

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