A2 Tool Steel
1.2363
- EN1.2363
- ENX100CrMoV5
- AISIA2
Air-hardening 5 % chromium cold work tool steel balancing wear resistance and toughness. Low distortion and good dimensional stability; a tougher alternative to 1.2379 (D2).
01Material Properties
- Air hardening; low distortion
- Balance of wear resistance and toughness
- Good dimensional stability
- Good machinability and grindability
- Suitable for PVD coating
- Heat treated to 58–62 HRC
02Applications
- Blanking and punching dies, punches
- Shear and cutting blades
- Thread rolling and cold forming tools
- Mold components for abrasive plastics
- Gauges and measuring tools
03Delivery Condition
- Max. 241 HB, soft annealed.
04Heat Treatment
Typical values
- Soft annealing
- 800–850 °C; max. 241 HB
- Stress relieving
- 600–650 °C
- Preheating
- 650 °C and 850 °C
- Hardening
- 940–980 °C; 15–30 min
- Quenching medium
- Air/pressurised gas or 500–550 °C salt bath
- As-quenched hardness
- ≈ 62–64 HRC
- Tempering
- 150–250 °C → 60–62 HRC or 500–550 °C (secondary) → 58–60 HRC
- Working hardness
- 58–62 HRC
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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