PROPRIETARY Carpenter CTS BDZ1 Alloy Stainless steels
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PROPRIETARY Carpenter CTS BDZ1 Alloy Chemical Composition
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PROPRIETARY Carpenter CTS BDZ1 Alloy Physical Properties
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PROPRIETARY Carpenter CTS BDZ1 Alloy Heat Treatments
- Annealing: alloy should be annealed in a neutral atmosphere. Heat uniformly to 843–871°C (1550–1600°F), then cool very slowly in the furnace until the furnace is black. The furnace can then be turned off and allowed to cool naturally. Fully annealed hardness is HRB 100 maximum.
Hardening: Preheat to 760–816°C (1400–1500°F) then increase temperature to 1038–1066°C (1900–1950°F), soak for 15 to 30 minutes, quench in warm oil or cool in air. Do not overheat.
Tempering: over a range of temperatures from 149°C to 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 (see hardness table). To remove peak stresses, yet retain peak hardness, temper at 149–177°C (300–350°F).
Tempering at temperatures of 427°C and higher (800°F and higher) will reduce toughness and corrosion resistance.
Sub-Zero Cooling: After hardening, the alloy may be refrigerated at -73 to -84°C (-100 to -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 two hours after the austenitizing treatment.
PROPRIETARY Carpenter CTS BDZ1 Alloy International Equivalent Materials
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