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H11/DIN 1.2343/AISI H11/4Cr5MoSiV1
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. Built for demanding service, H11 helps extend tool life and reduce downtime.
Key Properties
- Excellent toughness and impact resistance
- Good hot hardness and temper resistance
- Thermal fatigue resistance
- Good through-hardenability
- Stable thermal physical behavior
Typical Applications
- Die casting dies & Forging dies
- Hot extrusion tooling & Mandrels
- Hot shear blades & Punches
- Tool holders & Liner holders
- Ejector pins & Shrink work chucks
Chemical Composition (%)
| C | Si | Mn | Cr | Mo | V |
|---|---|---|---|---|---|
| 0.33-0.41 | 0.80-1.00 | 0.25-0.50 | 4.80-5.50 | 1.10-1.50 | 0.30-0.50 |
Size Range Available
| Shape | Dimensions |
|---|---|
| Rounds | Diameter: 71 - 300 mm |
| Blocks / Flats | Thickness: 20 - 400 mm | Width: 40 - 700 mm |