PROPRIETARY CPM CRU-WEAR Tool steels

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

Data updates

Latest Update: 2025-10
Total number of updates: 4
Update History
2017-11 2016-03 2015-08

This material has 47 properties — only a subset is shown here.

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PROPRIETARY CPM CRU-WEAR Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
1.1000
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
7.5000
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mo
VALUE
1.6000
UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
V
VALUE
val1
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UNIT
%
CAS NUMBER
7440-62-2
CRITERIA
W
VALUE
val1
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UNIT
%
CAS NUMBER
7440-33-7

Crucible Industries LLC., Product Data Sheets,

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PROPRIETARY CPM CRU-WEAR 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
val1
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This material has 47 properties — only a subset is shown here.

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PROPRIETARY CPM CRU-WEAR Heat Treatments


  • Annealed: Heat to 1550-1650°F (840-900°C), hold 2 hours, slow cool 50°F (28°C) per hour to 1200°F (650°C). Stress relieved: Annealed Parts: Heat to 1100-1300°F (595-705°C), hold 2 hours, then furnace cool or cool in still air. Hardened Parts: Heat to 25°F (15°C) below the original tempering temperature, hold 2 hours, then furnace cool or cool in still air. Hardened: Preheat: Heat to 1550-1600°F (840-870°C) Equalize. Austenitize: 1850-2050°F (1010-1120°C), Hold time at temperature 20-45 minutes. Quench: Air or positive pressure quench (2 bar minimum) to below 125°F (50°C). Temper: 900-1050°F (480-565°C). For the best combination of toughness and wear resistance, austenitize at 1950°F (1065°C). Temper 3 times at 1000°F (540°C).
  • Annealing: Heat to 840–900°C (1550–1650°F), hold 2 hours, slow cool 25°C (50°F) per hour to 650°C (1200°F).
    Stress Relieving Annealed Parts: Heat to 595–705°C (1100–1300°F), hold 2 hours, then furnace cool or cool in still air.
    Hardened Parts: Heat to 15°C (25°F) below the original tempering temperature, hold 2 hours, then furnace cool or cool in still air.
    Hardening: It is customary to use two furnaces: one furnace to preheat and the second furnace to austenitize. This ensures that the transition from the pre-heat temperature to the austenitizing temperature occurs fairly rapidly.
    Preheat: Heat to 840–870°C (1550–1600°F), Equalize.
    Austenitize: 1010–1120°C (1850–2050°F), hold time at temperature 20–45 minutes.
    Quench: Air or positive pressure quench (2 bars minimum) to below 50°C (125°F). Salt bath treatment, if practical, will ensure the maximum attainable toughness for a given hardening treatment.
    Temper: 480–565°C (900–1050°F). Double tempering is mandatory, and triple tempering is recommended. Cool to room temperature in between tempers. Temper 2 hours minimum each time or at least 1 hour per 25 mm of thickness for sections over 50 mm thick.
    For the best combination of toughness and wear resistance, austenitize at 1065°C (1950°F). Temper 3 times at 540°C (1000°F).

PROPRIETARY CPM CRU-WEAR Mechanical Properties


Temperature

PROPERTY / VALUE
Brinell Hardness (HB)
225 — 255
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Rockwell Hardness (HR)
54 — 66
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PROPRIETARY CPM CRU-WEAR International Equivalent Materials


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MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Composition 100%

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  • 3Cross References

  • 10Composition
  • 22Mechanical Properties
  • 7Physical Properties
  • 2Heat Treatment
  • -Metallography
  • -Machinability

  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep

  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology

  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation

  • 3Total Suppliers