PROPRIETARY CarTech Micro-Melt 420-CW Tool Steel Tool steels

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

Data updates

Latest Update: 2018-04
Total number of updates: 1
Update History

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PROPRIETARY CarTech Micro-Melt 420-CW Tool Steel Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
2.25
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
12.80
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Fe
VALUE
Balance
UNIT
%
CAS NUMBER
7439-89-6
CRITERIA
Mn
VALUE
val1
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UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
S
VALUE
val1
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UNIT
%
CAS NUMBER
7704-34-9
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

Carpenter Technology Corporation, Product Data Sheets,

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PROPRIETARY CarTech Micro-Melt 420-CW Tool Steel Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 214 GPa
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Density
7.474 — 8 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 20 properties — only a subset is shown here.

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PROPRIETARY CarTech Micro-Melt 420-CW Tool Steel Heat Treatments

  • Annealed: Heat slowly to 1650°F (899°C), hold for 2 hours, cool slowly at a rate of 25°F (14°C) maximum per hour to 1000°F (538°C), then either furnace cool or cool in still air to room temperature. Typical annealed hardness will be 277 Brinell. Quenching: Salt quench, interrupted oil quench, positive pressure gas quench, or air cool at a minimum cooling rate of 150°F/min. (83°C/min.) to below 1000°F (540°C). Cool to below 125°F (50°C) before tempering. For optimum vacuum heat treatment response, a minimum 4 bar gas quench is recommended. Stress Relieving: Annealed Parts: Heat to 1100-1300°F (593-705°C), hold 2 hours, then furnace cool or cool in still air. Hardened Parts: Heat to 25-50°F (15-30°C) below original tempering temperature, hold 2 hours, then furnace cool or cool in still air.

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  • -Cross References
  • 8Composition
  • -Mechanical Properties
  • 7Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • 3Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
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