PROPRIETARY BÖHLER S790 MICROCLEAN Tool steels
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PROPRIETARY BÖHLER S790 MICROCLEAN Chemical Composition
Böhler Edelstahl, Product Data Sheets,
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PROPRIETARY BÖHLER S790 MICROCLEAN Physical Properties
Temperature
This material has 279 properties — only a subset is shown here.
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PROPRIETARY BÖHLER S790 MICROCLEAN Heat Treatments
- Annealing: 870-900°C (1598-1652°F); The steel needs to be protected against decarburization. Through heating of the material is followed by controlled, slow furnace cooling at a maximum cooling rate of 10°C (18°F) per hour, down to approx. 700°C (1292°F). Final cooling in air.
Stress relieving: 600-650°C (1112-1202°F); Slow cooling in 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: 1050-1200°C (1922-2192°F), salt bath, vacuum. Preheating: 1st stage ~500°C, 2nd stage ~850°C, 3rd stage ~1050°C (for higher austenitising temperature). Austenitising: for cutting applications at higher austenitising temperatures (> 1130°C), holding time after complete heating 80 seconds, maximum 150 seconds, to avoid material damage due to overtime. Austenitising: for cold work applications at lower austenitising temperatures (< 1100°C). Holding time after complete heating 15 to 30 min. Quenching: oil, warm bath (500-550°C), gas.
560-580°C (1040-1076°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 between each tempering step. 3 tempering cycles recommended.
PROPRIETARY BÖHLER S790 MICROCLEAN Mechanical Properties
Temperature
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PROPRIETARY BÖHLER S790 MICROCLEAN International Equivalent Materials
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Equivalence categories reflect chemical-composition and mechanical-property comparison — always verify suitability against the governing specification for your application.
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- 134Cross References
- 5Composition
- 13Mechanical Properties
- 16Physical Properties
- 2Heat Treatment
- 2Metallography
- 1Machinability
- -Stress-Strain
- -Formability
- -Fatigue
- -Fracture
- -Creep
- -Joints
- -Coatings
- -Dimensions
- -Tribology
- -Corrosion
- -Ageing
- -Weatherability
- -Irradiation
- 106Total Suppliers