PROPRIETARY CarTech CTS B70P Alloy Stainless steels
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PROPRIETARY CarTech CTS B70P Alloy Chemical Composition
Carpenter Technology Corporation, Product Data Sheets,
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PROPRIETARY CarTech CTS B70P Alloy Physical Properties
Temperature
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PROPRIETARY CarTech CTS B70P Alloy Heat Treatments
- Annealing: Should be annealed in a neutral atmosphere. Heat uniformly at 871-899°C (1600-1650°F) then cool very slowly in the furnace at a rate of not more than 11°C (20°F) per hour until the furnace is black. The furnace can then be turned off and allowed to cool naturally.
Hardening: Preheat at 760-816°C (1400-1500°F) then increase temperature to 1093-1149°C (2000-2100°F), soak for 30 minutes, quench in warm oil or cool in air. Do not overheat.
Tempering: Can be tempered over a range of temperatures from 149-427°C (300-800°F), soaked at least one hour then air cooled to room temperature. The specific tempering treatment chosen will depend upon a number of factors including the austenitizing temperature utilized, application of a refrigeration treatment and the desired combination of final hardness, toughness and corrosion resistance. Tempering at 427-593°C (800-1100°F) will reduce toughness and corrosion resistance.
Sub-zero cooling: After hardening, the alloy should be refrigerated at -73/-84°C (-100/-120°F) for at least one hour then warmed to room temperature prior to tempering to minimize retained austenite. Refrigeration is most effective when performed within 2 hours after the austenitizing treatment. The benefit of refrigeration is more apparent with austenitizing temperatures above 1093°C (2000°F).
PROPRIETARY CarTech CTS B70P Alloy Mechanical Properties
Temperature
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PROPRIETARY CarTech CTS B70P Alloy International Equivalent Materials
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