PROPRIETARY SIHARD S670 Tool steels
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PROPRIETARY SIHARD S670 Chemical Composition
SIJ Metal Ravne, Product Data Sheets,
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PROPRIETARY SIHARD S670 Physical Properties
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PROPRIETARY SIHARD S670 Heat Treatments
- Soft annealing: Heat to 800-850°C, cool slowly in furnace. This will produce a maximum Brinell hardness of 250.
Stress relieving: Stress relieving to remove machining stresses should be carried out by heating to 650-700°C, holding for 1-2 hours at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.
Hardening: Harden from a temperature of 1020-1040°C followed by air quenching or warm bath quenching 500-550°C. Hardness after quenching is 63-65 HRC.
PROPRIETARY SIHARD S670 International Equivalent Materials
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- 9Physical Properties
- 4Heat Treatment
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