H12

H12

H12

Hot Work Tool Steel H12

H12 is a chromium hot work tool steel engineered for strong hot hardness and wear resistance. It retains strength at elevated temperatures and resists heat checking during cyclic heating and cooling. The grade offers good hardenability for uniform properties in larger sections. Its balanced composition supports reliable machining and consistent heat treatment response. H12 is widely used for die casting dies, hot extrusion tooling, and forging dies. It performs well in hot shear blades, mandrels, and inserts where wear resistance is critical. Built for demanding service, H12 helps extend tool life and reduce downtime.

Key Features

  • Strong hot hardness and temper resistance
  • Improved wear resistance for longer tool life
  • Thermal fatigue resistance for cyclic heating
  • Good toughness to resist cracking
  • Reliable through-hardening response
STANDARDS X37CrMoW5-1 H12 DIN 2606 AISI H12 AFNOR 32CDV12-28 JIS SKD62

Steel Properties

  • Magnificent Resistance to Wear
  • High Strength at Elevated Temperature
  • Homogenizing with High Toughness
  • Additional Fine Structure without Grain-Boundary Carbide

Chemical Composition (Typical Analysis in %)

Element Range
C0.30-0.40
Si0.80-1.25
P0.003 max
Cr4.75-5.50
W1.00-1.70
Mo1.25-1.75
V0.20-0.50

Product Contact

Need product details or a quote? Call us and we will connect you with a specialist.