PROPRIETARY CarTech M42 High Speed Steel Tool steels
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PROPRIETARY CarTech M42 High Speed Steel Chemical Composition
Carpenter Technology Corporation, Product Data Sheets,
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PROPRIETARY CarTech M42 High Speed Steel Physical Properties
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This material has 46 properties — only a subset is shown here.
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PROPRIETARY CarTech M42 High Speed Steel Heat Treatments
- Decarburization: This steel, like all high speed steels, is subject to decarburization in hardening. The use of rectified salt baths or the proper atmosphere control in furnace hardening will impart good results in heat treating.
Normalizing: Normalizing is not recommended.
Annealing: To anneal, the steel should be packed in a container using a neutral packing compound or in a suitable protective atmosphere. Heat uniformly to 843-871°C (1550-1600°F) ensuring that the entire section is at temperature. Cool slowly in the furnace at a rate not to exceed 22°C (40°F) per hour to 538°C (1000°F), then allow to cool naturally. This should produce a hardness of BHN 255 or less.
Hardening: For best results this steel should be heat treated from properly rectified salt baths or controlled atmosphere furnaces. Preheat at 816-871°C (1500-1600°F) being sure to heat thoroughly, then transfer to the high heat of 1177-1204°C (2150-2200°F) in salt or 14°C (25°F) higher in atmosphere furnaces. Quench in salt at 538-621°C (1000-1150°F) until equalized, then cool in air. The steel may also be quenched in warm oil. In either case, cool to 66°C (150°F) maximum before tempering, but do not allow parts to be at room temperature for extended periods before placing in the tempering furnace.
Tempering: The alloy should normally be tempered between 510°C (950°F) and 593°C (1100°F). Tempering temperatures below 538°C (1000°F) usually do not provide adequate relief of hardening stresses and are not generally recommended. This steel should be given triple temper cycle with a minimum of two hours at temperature each time. The tools must be cooled completely to room temperature following each cycle so that the tempering may be completely effective.
PROPRIETARY CarTech M42 High Speed Steel Mechanical Properties
Temperature
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PROPRIETARY CarTech M42 High Speed Steel International Equivalent Materials
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- 12Cross References
- 9Composition
- 10Mechanical Properties
- 3Physical Properties
- 1Heat Treatment
- -Metallography
- -Machinability
- -Stress-Strain
- -Formability
- -Fatigue
- -Fracture
- -Creep
- -Joints
- -Coatings
- -Dimensions
- -Tribology
- -Corrosion
- -Ageing
- -Weatherability
- -Irradiation
- 11Total Suppliers