PROPRIETARY CPM 4V Tool steels

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

Data updates

Latest Update: 2017-11
Total number of updates: 3
Update History
2016-03 2015-08

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PROPRIETARY CPM 4V Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
1.3500
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
5.0000
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.4000
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

Crucible Industries LLC., Product Data Sheets,

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PROPRIETARY CPM 4V Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Density
7.695 — 8 kg/dm³
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Heat Capacity
460 J/(kg∙°C)
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Poisson Coefficient
val1
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This material has 18 properties — only a subset is shown here.

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PROPRIETARY CPM 4V Heat Treatments

  • Hardened: Preheating: 816-845°C, equalize. Quenching: Air, pressurized gas, warm oil, or salt. For pressurized gas, the furnace should have a minimum quench pressure of 4 bars. For oil, quench until black, about 482°C, then cool in still air to 66-51°C. For salt maintained at 538-593°C, equalize in the salt, then cool in still air to 66-51°C. Tempered: Temper immediately after quenching. Typical temperature range is 538-593°C. Do not temper below 538°C. Hold at temperature for 1 hour per inch of thickness, 2 hours minimum, then air cool to ambient temperature. Double tempering is required. Annealed: Annealed must be performed after hot working and before rehardening. Heat at a rate not exceeding 222°C per hour to 871-899°C, and hold at temperature for 1 hour per inch of maximum thickness; 2 hours minimum. Then cool slowly with the furnace at a rate not exceeding 28°C per hour 649°C. Continue cooling to ambient temperature in the furnace or in air.

PROPRIETARY CPM 4V Mechanical Properties

Temperature

PROPERTY / VALUE
Rockwell Hardness (HR)
58 — 60
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Impact Energy
68 — 75 J
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  • -Cross References
  • 6Composition
  • 4Mechanical Properties
  • 6Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 1Total Suppliers