PROPRIETARY BÖHLER W350 ISOBLOC Tool steels

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

Data updates

Latest Update: 2025-01
Total number of updates: 3
Update History
2024-12 2022-09

This material has 31 properties — only a subset is shown here.

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PROPRIETARY BÖHLER W350 ISOBLOC Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.38
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
5.00
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.55
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 W350 ISOBLOC Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 214 GPa
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Thermal Conductivity
28.8 W/(m∙°C)
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Density
7.72 — 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 31 properties — only a subset is shown here.

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PROPRIETARY BÖHLER W350 ISOBLOC Heat Treatments

  • Annealing: 750-800°C (1382-1472°F); Slow controlled cooling in furnace at a rate of 10 to 20°C/hr (18 to 36°F/hr) down to approx. 600°C (1112°F), further cooling in air.

    Stress relieving: 600-670°C (1112-1238°F); Slow cooling furnace. To relieve stresses caused by extensive machining, or for complex shapes. Soak for 1-2 hours after temperature equalisation (in neutral atmosphere).

    Hardening and tempering: 1010-1020°C (1850-1868°F); Holding time after temperature equalization: 15 to 30 minutes; In order to prevent coarsening of the grain, hardening must be carried out at the recommended temperature. For big dimensions its recommended to reduce the temperature to 1010°C (1850°F); Quenching: oil, salt bath (500-550°C [932-1022°F]), air, inert gas, vacuum; After hardening, required tempering treatment to achieve desired working hardness.

PROPRIETARY BÖHLER W350 ISOBLOC Mechanical Properties

Temperature

PROPERTY / VALUE
Brinell Hardness (HB)
≤ 205
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Rockwell Hardness (HR)
41 — 53.6
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  • 1Cross References
  • 6Composition
  • 8Mechanical Properties
  • 14Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 1Total Suppliers