1.2711 Mold Steel
1.2711
- EN1.2711
- EN54NiCrMoV6
Nickel-chromium-molybdenum-vanadium mold steel with uniform through-hardening in large sections and high toughness. Used pre-hardened for large plastic molds, die holders and forging dies.
01Material Properties
- Uniform hardness in large sections
- High toughness and crack resistance
- Available pre-hardened; no further heat treatment required
- Good machinability and polishability
- Suitable for nitriding and flame hardening
02Applications
- Large plastic injection and compression molds
- Die holders and bolster plates
- Forging dies and die blocks
- Bodies of hot and cold shearing tools
03Delivery Condition
- Pre-hardened 360–410 HB; soft annealed on request (max. 250 HB).
04Heat Treatment
Typical values
- Delivery condition
- Pre-hardened 360–410 HB; soft annealed max. 250 HB on request
- Soft annealing
- 650–700 °C
- Stress relieving
- 550–600 °C
- Hardening
- 840–880 °C; oil/air
- As-quenched hardness
- ≈ 56–58 HRC
- Tempering
- 500–650 °C → 36–45 HRC
- Nitriding
- 500–530 °C
Heat treatment cycle (schematic)
Tempering diagram (approximate)
Values are approximate and for information only; they vary with section size, heat and furnace conditions. Binding values are determined from the manufacturer’s data under laboratory conditions.
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