PROPRIETARY BÖHLER T656 EXTRA Stainless steels

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

Data updates

Latest Update: 2021-02
Total number of updates: 2
Update History
2017-08

This material has 42 properties — only a subset is shown here.

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PROPRIETARY BÖHLER T656 EXTRA Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.14
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
12.00
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.50
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Nb
VALUE
val1
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UNIT
%
CAS NUMBER
7440-03-1
CRITERIA
Ni
VALUE
val1
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UNIT
%
CAS NUMBER
7440-02-0
CRITERIA
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3

Böhler-Uddeholm AG, Product Data Sheets,

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PROPRIETARY BÖHLER T656 EXTRA Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 216 GPa
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Thermal Conductivity
val1
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W/(m∙°C)
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Electrical Resistivity
val1
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Ω∙mm²/m
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Density
val1
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kg/dm³
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Electrical Conductivity
val1
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S/m
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Heat Capacity
val1
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J/(kg∙°C)
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Poisson Coefficient
val1
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Service Temperature
val1
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°C
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This material has 42 properties — only a subset is shown here.

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PROPRIETARY BÖHLER T656 EXTRA Heat Treatments

  • Hot forming, forging: 1170 to 850°C, Slow cooling in furnace or in thermal insulating material.
    Annealing: 750 to 800°C, Cooling in furnace
    Stress relieving: 600 to 650°C, Cooling in furnace
    Hardening: 1135 to 1165°C / Oil, air
    Tempering: 650 to 700°C / Air

PROPRIETARY BÖHLER T656 EXTRA Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
800 — 950 MPa
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Elongation, A
≥ 15 %
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Reduction of Area
val1
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%
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Yield Strength, Rp0.2
≥ 650 MPa
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Impact Energy
val1
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J
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  • -Cross References
  • 6Composition
  • 9Mechanical Properties
  • 23Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • 1Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 2Total Suppliers