H11
Description
AISI H11 tool steel is a 5% chromium hot work tool steel that is represented by its excellent impact toughness. Chromium hot-work tool steels are designated as group H steels according to the AISI classification system, and specified in ASTM A681standard.
Chemical Composition
| C | Si | Mn | P | S | Cr | Mo | V |
|---|---|---|---|---|---|---|---|
| 0.36 | 0.9 | 0.3 | max. 0.030 | max. 0.030 | 4.8 | 1.1 | 0.3 |
| 0.42 | 1.2 | 0.5 | 5.5 | 1.4 | 0.5 |
Standards
| H11 | BH11 | 1.2343 | SKD6 | Z38CDV5 | X37CrMoV5-1 |
Properties
Steel Properties
- H11 has high quality and superior cleanliness rate,
- H11 could decline budget costs as pre-hardened treatment.(eliminate time, extra money and risk)
- 3. Finer grain size, fully spheroidization structure.
- 4. Low container of the gas
- 5. High resistance to temperature, wear test, thermal crack
- High shock resistance, high strength and toughness at high temperatures
- Mould can extend materials life-time and raise high wear-resistance by Nitriding treatment.
Applications
- Extruder die
- Tool parts
- Forging mold
- Press casting mold
- Shrink work chucks
- Liner Holders
- Bridge kind tools
| Soft Annealing °C | Cooling | Hardness HB |
|---|---|---|
| 740 – 805 | Furnace | max. 230 |
| Stress-relief annealing °C | Cooling | |
| approx. 605 – 640 | Furnace |
| Hardening °C | Quenching | Hardness after quenching HRC |
|---|---|---|
| 1000 – 1035 | Air, oil or | 55 |
| Tempering °C | 100 | 200 | 300 | 400 500 | 550 600 | 650 | 700 |
|---|---|---|---|---|---|---|---|
| HRC | 53 | 53 | 53 | 53 55 | 53 49 | 37 | 32 |
