PROPRIETARY BÖHLER K353 Tool steels

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

Data updates

Latest Update: 2022-10
Total number of updates: 2
Update History
2021-04

This material has 32 properties — only a subset is shown here.

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PROPRIETARY BÖHLER K353 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.82
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
8.00
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.40
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
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 BÖHLER K353 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 212 GPa
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Thermal Conductivity
21.9 W/(m∙°C)
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Density
7.7 — 8 kg/dm³
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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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This material has 32 properties — only a subset is shown here.

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PROPRIETARY BÖHLER K353 Heat Treatments

  • Annealing: 800-850°C (1472-1562°F); slow controlled cooling in furnace at a rate of 10 to 20°C/hr (18-36°F/hr) down to approx. 600°C (1112°F), further cooling in air.

    Stress relieving: approx. 650°C (1202°F); slow cooling in furnace; intended to relieve stresses set up by extensive machining, or in complex shapes, after through heating, hold in neutral atmosphere for 1-2 hours.

    Hardening and tempering: 1030-1060°C (1886-1940°F); Oil, salt bath, gas. Holding time after temperature equalization: 15 to 30 minutes. After hardening, tempering to the desired working hardness according to the tempering chart.

PROPRIETARY BÖHLER K353 Mechanical Properties

Temperature

PROPERTY / VALUE
Brinell Hardness (HB)
≤ 240
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Rockwell Hardness (HR)
46.12 — 61.87
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  • -Cross References
  • 6Composition
  • 9Mechanical Properties
  • 12Physical Properties
  • 3Heat Treatment
  • -Metallography
  • 1Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 1Total Suppliers