PROPRIETARY WM H-26 Tool steels

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

Data updates

Latest Update: 2018-06
Total number of updates: 1
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PROPRIETARY WM H-26 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.57
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
4.00
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
V
VALUE
1.00
UNIT
%
CAS NUMBER
7440-62-2
CRITERIA
W
VALUE
val1
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UNIT
%
CAS NUMBER
7440-33-7

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PROPRIETARY WM H-26 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Density
7.72 — 8 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 24 properties — only a subset is shown here.

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PROPRIETARY WM H-26 Heat Treatments

  • During forging and annealing, the standard precautions applicable to all high speed steels should be followed. Like all 8 to 9% molybdenum high speed steels, it is subject to considerable decarburization during any heating cycle.
    Salt baths or controlled atmosphere furnaces are preferable for hardening. Danger of decarburization or carburization is eliminated in properly operated salt baths, while in controlled atmosphere furnaces any partial decarburization or carburization which may result is usually so slight as to be of no consequences on tools which are to be ground after hardening.
    Like other high speed steels, should not be held at the quenching temperature but should be removed form the furnace as soon as uniformly heated. Quenching in oil is preferred, although will attain maximum hardness when cooled in air or in a hot bath at about 100°F (38°C).
    For hot work applications with the 60% carbon grade, a wider hardening range is permissible depending upon the application. Normally, a temperature of 2100-2150°F (1149-1177°C) will be employed. For higher hot hardness and wear resistance, the temperature should be raised, and for higher toughness it should be lowered. The lower carbon can be quenched, in air, oil or hot salt bath. Usually oil quenching is recommended.

PROPRIETARY WM H-26 Mechanical Properties

Temperature

PROPERTY / VALUE
Rockwell Hardness (HR)
33 — 63
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Grain Size
val1
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  • -Cross References
  • 4Composition
  • 15Mechanical Properties
  • 3Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
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