PROPRIETARY Carpenter CTS B75P Alloy Stainless steels

Material group: Ferrous Alloys / Stainless steels
Country / Standard: PROPRIETARY

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Latest Update: 2016-02
Total number of updates: 1
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This material has 19 properties — only a subset is shown here.

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PROPRIETARY Carpenter CTS B75P Alloy Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
1.1000
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
14.5000
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Fe
VALUE
Balance
UNIT
%
CAS NUMBER
7439-89-6
CRITERIA
Mn
VALUE
val1
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UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
P
VALUE
val1
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UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
S
VALUE
val1
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UNIT
%
CAS NUMBER
7704-34-9
CRITERIA
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3
CRITERIA
V
VALUE
val1
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UNIT
%
CAS NUMBER
7440-62-2

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PROPRIETARY Carpenter CTS B75P Alloy Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 215 GPa
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Density
7.61 — 8.1 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 19 properties — only a subset is shown here.

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PROPRIETARY Carpenter CTS B75P Alloy Heat Treatments

  • Annealing: Carpenter CTS B75P alloy should be annealed in a neutral atmosphere. Heat uniformly to 1600/1650°F (871/899°C), then cool very slowly in the furnace at a rate of not more than 20°F (11°C) degrees per hour until the furnace is black. The furnace should then be turned off and allowed to cool naturally. Annealed hardness is 240/265 HBN. Hardening: Preheat to 1400/1500°F (760/816°C), then increase temperature to 1950/2050°F (1066/1121°C), soak for 30 minutes, then quench in warm oil or cool in air. Be careful to not overheat the material. Tempering: Carpenter CTS B75P can be tempered over a range of temperatures from 500°F (260°C) to 1025°F (552°C), soaked at least two hours then air cooled to room temperature. 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). Double tempering is necessary for tempering temperatures of 900°F (482°C) and higher. Tempering at temperatures of 800°F to 1100°F (427°C to 593°C) will reduce toughness and corrosion resistance. Sub-Zero Cooling: After hardening, the alloy may be refrigerated at -100/-120°F (-73/-84°C) 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.

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