H11

H11

Hot Work Tool Steel H11

H11 is a chromium hot work tool steel valued for its toughness and resistance to thermal shock. It maintains 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. H11 is widely used for die casting dies, hot extrusion tooling, and forging dies. It performs well in hot shear blades, mandrels, and punches where impact resistance is required. Built for demanding service, H11 helps extend tool life and reduce downtime.

Key Features

  • Excellent toughness and impact resistance
  • Good hot hardness and temper resistance
  • Thermal fatigue resistance for cyclic heating
  • Good hardenability for uniform through-hardening
  • Stable machining and heat treatment response
STANDARDS DIN / WNr AISI AFNOR JIS BS GB GOST

Size Range

Shape Dimensions
ROUNDS 71 to 300 MM DIA
FLATS
Thickness: 20 to 400 MM MAX
Width: 40 to 700 MM MAX

Steel Properties

  • Contains 5% Chromium
  • Greater strength
  • High toughness
  • Best thermal physical phenomenon
  • Resistant to hot cracking
  • Gives fundamental necessities to long tool life in press forging, die-casting, extrusion processes etc.

Applications

This grade isn’t utilized for typical applications in the area of hot-work steels, yet additionally useful for tool holders, bridge kind tools, ejector pins, liner holders, hot work punches, forging dies, and shrink work chucks.

Chemical Composition

Element Range
C0.33-0.41
Si0.80-1.00
Mn0.25-0.50
P0.003 max
S0.030max
Cr4.80-5.50
Mo1.10-1.50
V0.30-0.50

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