PROPRIETARY BÖHLER S404 Tool steels
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This material has 118 properties — only a subset is shown here.
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PROPRIETARY BÖHLER S404 Chemical Composition
Böhler Edelstahl, Product Data Sheets,
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PROPRIETARY BÖHLER S404 Physical Properties
Temperature
This material has 118 properties — only a subset is shown here.
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PROPRIETARY BÖHLER S404 Heat Treatments
- Annealing: 770-840°C (1418-1544°F); Controlled slow cooling in furnace (10-20°C /h (18-36°F/h) to approx. 600°C (1110°F), air cooling;
Stress relieving: 600-650°C (1112-1202°F); Slow cooling furnace. To relieve stresses set up by extensive machining or in tools of intricate shape. After through heating, hold in neutral atmosphere for 1 to 2 hours.
Hardening and tempering: 1140-1180°C (2084-2156°F), salt bath, vacuum. Preheating: 1st stage ~500°C, 2nd stage ~850°C, 3rd stage ~1050°C. Austenitising: 1140-1180°C, holding time after complete heating 80 seconds, maximum 150 seconds, to avoid material damage due to overheating. Quenching: oil, warm bath (500-550°C), gas.
550-570°C (1022-1058°F), slow heating to tempering temperature immediately after austenitising. Dwell time in the furnace 1 hour per 20 mm material thickness (at least 1 hour). Slow cooling to room temperature. 3 tempering cycles recommended.
PROPRIETARY BÖHLER S404 Mechanical Properties
Temperature
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PROPRIETARY BÖHLER S404 International Equivalent Materials
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- 45Cross References
- 7Composition
- 7Mechanical Properties
- 16Physical Properties
- 2Heat Treatment
- -Metallography
- -Machinability
- -Stress-Strain
- -Formability
- -Fatigue
- -Fracture
- -Creep
- -Joints
- -Coatings
- -Dimensions
- -Tribology
- -Corrosion
- -Ageing
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- -Irradiation
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