PROPRIETARY Carpenter CTS B90 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 B90 Alloy Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.9000
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
18.0000
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 B90 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 B90 Alloy Heat Treatments

  • Annealing: Carpenter CTS B90 alloy should be annealed in a neutral atmosphere. Heat uniformly to 1500/1600°F (816/871°C), 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 1400/1500°F (760/816°C) then increase temperature to 1925/1950°F (1052/1066°C), soak for 15 to 30 minutes, and quench in warm oil or cool in air. Be careful to avoid overheating the material. Tempering: Carpenter CTS B90 alloy can be tempered over a range of temperatures from 300°F (149°C) to 800°F (427°C), 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 300°F (149°C) to 350°F (177°C). Tempering at temperatures of 800°F (427°C) and higher 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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  • -Mechanical Properties
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