Böhler K720 / 1.2842 manganese steel

Böhler K720 steel or 1.2842 / AISI O2 (90MnCrV8) is a carbon-manganese cold work steel/carbon steel (tool steel).

Properties

• Suitable steel for forging damascus (forge welding).
  Etches very dark/black in damascus patterns
• Very high sharpness
• Good edge retention / wear resistance
• Easy hardening

Recommended applications

• European chef’s knives
• Hunting knives
• Outdoor, survival & bushcraft knives

Chemical composition

C: 0,90% | Cr: 0,35% | Mn: 2,00% | Si: 0,25% | V: 0,10%

Our "Böhler K720 / 1.2842 steel" heat treatment recommendation:
Hardening:

• Hardening temperature: 800°C - 830°C
• Quenching medium: oil
• Cryogenic treatment: optional, minor benefit possible
• Tempering: 160°C - 200°C
• Achievable hardness: 60 - 62 HRC

Annealing: 680 to 720°C

Finish
Laser cut, rolled & annealed
Austrian production