DIN 1.2714 (ESR / Non-ESR) | Hot Work Tool Steel
Characteristics
Chromium–nickel alloyed hot-work tool steel with high low-temperature impact toughness and high thermal fatigue strength, offering excellent resistance to thermal shock. Pre-hardening treatment ensures excellent hardenability; low phosphorus and sulphur content provides excellent polishability.
Applications
Suitable for large-size forging dies, die-casting moulds, extrusion dies, core shafts, columns, sleeves, mould bases, backing plates, stamping dies, mould components, deep engraving moulds, die-casting machine containers, thermoforming moulds, hot bending dies, hot roll hammer tools, and hot stamping tools.
Chemical Composition (%)
| C | Si | Mn | Cr | Mo | Ni | V | P (Max) | S (Max) |
|---|---|---|---|---|---|---|---|---|
| 0.50–0.60 | 0.10–0.40 | 0.60–0.95 | 0.80–1.20 | 0.35–0.55 | 1.50–1.80 | 0.05–0.15 | 0.03 | 0.03 |
Mechanical Properties
20 mm: 39–43 HRC | Tensile Strength: 1200–1350 N/mm²
50 mm: 36–42 HRC | Tensile Strength: 1100–1320 N/mm²
100 mm: 32–38 HRC | Tensile Strength: 980–1170 N/mm²
Heat Treatment
Annealing: 700 – 720°C, furnace cooling, hardness ≤ 240 HB.
Stress Relieving: 600 – 650°C after machining.
Hardening: Preheat 350 – 450°C → 650 – 750°C → Austenitize at 850 – 870°C → Oil quench.
Tempering: 550 – 600°C (minimum 3 hours), double temper recommended.
Typical working hardness: 44 – 52 HRC.
Supply Condition
Supplied in ESR and Non-ESR condition with uniform microstructure, excellent toughness and optimized performance for heavy-duty hot-work applications.
Supply Size
Round: Dia 20 – Dia 500 mm
Flat / Block: 50 – 500 mm
Continuous Cooling Transformation ( C.C.T. Curve)
Tempering Curve
