PROPRIETARY Carpenter CTS BD1N 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 15 properties — only a subset is shown here.

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PROPRIETARY Carpenter CTS BD1N Alloy Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.85 – 0.95
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
15.00 – 17.00
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
Ni
VALUE
val1
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UNIT
%
CAS NUMBER
7440-02-0
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

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PROPRIETARY Carpenter CTS BD1N 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 15 properties — only a subset is shown here.

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PROPRIETARY Carpenter CTS BD1N Alloy Heat Treatments

  • Annealing: 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 then can be turned off and allowed to cool naturally. Fully annealed hardness is HRC 25 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. This cycle is specifically tailored for knife stock and other applications might require modifications.
    Tempering: Over a range of temperatures from 149°C to 427°C (300°F to 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. To remove transformation stresses, yet retain peak hardness, temper at 149°C to 177°C (300°F to 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 and achieve maximum hardness capability. Refrigeration is most effective when performed within two hours after the austenitizing treatment.

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  • 9Composition
  • -Mechanical Properties
  • 4Physical Properties
  • 1Heat Treatment
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