PROPRIETARY BÖHLER K990 Tool steels
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This material has 173 properties — only a subset is shown here.
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PROPRIETARY BÖHLER K990 Chemical Composition
Böhler Edelstahl, Product Data Sheets,
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PROPRIETARY BÖHLER K990 Physical Properties
Temperature
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PROPRIETARY BÖHLER K990 Heat Treatments
- Hot forming: 1000 - 800°C, Slow cooling in furnace or thermoinsulating material.
Annealing temperature: 680 to 710°C Slow controlled cooling in furnace at a rate of 10 to 20°C/hr down to approx. 600°C (1112°F), further cooling in air.
Normalizing temperature: 800°C / Air cooling
Stress relieving temperature: 600 - 650°C, Slow cooling in furnace; in ended to relieve stresses set up by extensive machining, or in complex shapes. After through heating, hold in neutral atmosphere for 1-2 hours.
Hardening temperature: 770 - 800°C Water; Holding time at hardening temperature: 10 to 20 min. Hardness penetration for 30 mm square (average values): 2,5 mm; Full hardening diameter (average values): 10 mm
Tempering: Slow cooling to tempering temperature immediately after hardening/time in furnace 1 hour for each 20 mm of work piece thickness but at least 1 hour / cooling in air. For average hardness figures to be obtained please refer to the tempering chart.
PROPRIETARY BÖHLER K990 Mechanical Properties
Temperature
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PROPRIETARY BÖHLER K990 International Equivalent Materials
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- 94Cross References
- 5Composition
- 5Mechanical Properties
- 14Physical Properties
- 1Heat Treatment
- -Metallography
- -Machinability
- -Stress-Strain
- -Formability
- -Fatigue
- -Fracture
- -Creep
- -Joints
- -Coatings
- -Dimensions
- -Tribology
- -Corrosion
- -Ageing
- -Weatherability
- -Irradiation
- 54Total Suppliers