O1

Description

This grade gives higher hardness values than THYRODUR 2842 and a better wear-resistance owing to tungstene presence, whereas preserving a good toughness.

Chemical Composition

CSiMnCrVW
10.251.050.550.150.58

Standards

AISI O-11.2510100MnCrW4A6819CrWMnSKS3AFNOR 2212

Properties

Thermal Conductivity at °C20350700
W/(m • K)33.832.231

Applications

  1. Blanking and stamping dies for cutting sheets
  2. Threading tools
  3. Drills
  4. Broaches
  5. Gauges
  6. Measuring tools
  7. Plastic moulds
  8. Shear blades
  9. Guide rails

Heat Treatment

Soft annealing °CCoolingHardness HB
750 - 780Furnacemax. 230
Stress-relief annealing °CCooling
approx. 650Furnace
Hardening °CQuenchingHardness after quenching HRC
780 - 820Air, oil or saltbath, 180-220 °C65
Tempering °C after quenching100200300400
HRC63625853.5