PROPRIETARY ExELL P-20m Tool steels

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

Data updates

Latest Update: 2018-05
Total number of updates: 1
Update History

This material has 32 properties — only a subset is shown here.

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PROPRIETARY ExELL P-20m Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.35
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
2.00
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
1.50
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
Ni
VALUE
val1
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UNIT
%
CAS NUMBER
7440-02-0
CRITERIA
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3

Ellwood Specialty Steel, Product Data Sheets,

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PROPRIETARY ExELL P-20m Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Density
val1
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kg/dm³
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Heat Capacity
val1
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J/(kg∙°C)
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Thermal Conductivity
29.134 W/(m∙°C)
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Poisson Coefficient
val1
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This material has 32 properties — only a subset is shown here.

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PROPRIETARY ExELL P-20m Heat Treatments

  • It is normally supplied in the prehardened condition. The chemistry is balanced to optimize heat treatment response for both hardenability and toughness to the supplied hardness level of 277-321 HB and especially for larger mold applications. However, the following thermal treat data may be useful if stress relieving, annealing or reheat treatment might be necessary.
    Stress relieving:In order to minimize any movement during service or tool making, stress relieving is normally performed between the rough and finish machine operations of tool making for prehardened material. Stress relieving is also regularly used after any welding. After rough machining, heat the part to 950 - 1000°F (for prehardened material), equalize and hold 1 - 2 hours, cool in furnace to 600°F and then air cool.
    Annealing:With a protective atmosphere or vacuum furnace, heat slowly to 1300°F. Equalize and hold one hour per inch of thickness. Furnace cool 20°F/hr to 1000°F and equalize. Air cool to room temperature. Hardness 250 HB max.
    Hardening and quenching:Preheating: Heat to 1000 - 1200°F and equalize. Continue heating to hardening temperature. Hardening: Protect against oxidation and decarburization. Austenitizing (hardening) temperature is normally 1560°F. After heating to hardening temperature, equalize and hold 30 minutes at temperature. Quenching: Oil or polymer quench. Martempering bath 850 - 1050°F, maximum 4 min., then air cool.
    Tempering:Temper immediately after quenching to about 150°F. Temper two times with cooling to room temperature between tempers.

PROPRIETARY ExELL P-20m Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
1068.7 MPa
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Brinell Hardness (HB)
250 — 410
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Elongation, A
20 %
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Reduction of Area
val1
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%
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Yield Strength, Rp0.2
val1
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MPa
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  • -Cross References
  • 6Composition
  • 10Mechanical Properties
  • 13Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • 1Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 1Total Suppliers