PROPRIETARY CPM Rex 66 (HS) Tool steels

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

Data updates

Latest Update: 2015-08
Total number of updates: 1
Update History

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PROPRIETARY CPM Rex 66 (HS) Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
1.6700
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Co
VALUE
8.0000
UNIT
%
CAS NUMBER
7440-48-4
CRITERIA
Cr
VALUE
4.7500
UNIT
%
CAS NUMBER
7440-47-3
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
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 Rex 66 (HS) Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 214 GPa
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Density
7.72 — 8.249 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 CPM Rex 66 (HS) Heat Treatments

  • Annealed: Heat to 870°C, hold 2 hours, slow cool no faster than 15°C per hour to 540°C, then furnace cool or cool in still air to room temperature. Stress relieved: Annealed parts: Heat to 705°C, hold 2 hours, then air cool or furnace cool. Hardened parts: Heat to 15°C below original tempering temperature, or 540°C minimum, hold 2 hours, then air cool or furnace cool. Straightened: Best done warm 200-430°C. Hardened: Pre-heat: 815-845°C, hold long enough to soak through. A second pre-heat at 1010-1040°C is recommended when vacuum hardened. Austenitize: 1120-1205°C. Hold part at temperature 5-10 minutes. Quench: Salt, oil or atmosphere quench to below 595°C, equalize then air cool to hand warm, below 50°C. The quench rate through 1010-705°C) is critical to achieve optimum results. A slower cooling rate below 540°C may be used to minimize distortion. Temper: Triple temper at 540°C or higher. Hold at least 2 hours at temperature for each temper. Air cool to room temperature between tempers. Typical tempered range is 550-565°C.

PROPRIETARY CPM Rex 66 (HS) Mechanical Properties

Temperature

PROPERTY / VALUE
Brinell Hardness (HB)
245 — 275
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  • 2Cross References
  • 7Composition
  • 1Mechanical Properties
  • 8Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 1Total Suppliers