PROPRIETARY ExELL D-2 Tool steels

Material group: Ferrous Alloys / Tool steels

Country / Standard: PROPRIETARY

Data updates

Latest Update: 2018-07

Total number of updates: 2

Update History

2018-05

This material has 37 properties — only a subset is shown here.

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PROPRIETARY ExELL D-2 Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

1.50

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

12.00

UNIT

CAS NUMBER

7440-47-3

CRITERIA

VALUE

0.40

UNIT

CAS NUMBER

7439-96-5

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-98-7

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-21-3

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-62-2

Ellwood Specialty Steel, Product Data Sheets,

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PROPRIETARY ExELL D-2 Physical Properties

Temperature

0 - 30°C 100 - 300°C

PROPERTY / VALUE

Modulus of Elasticity

190 — 210 GPa

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Density

val1 kg/dm³

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Heat Capacity

val1 J/(kg∙°C)

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Thermal Conductivity

20.192 W/(m∙°C)

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Poisson Coefficient

val1

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This material has 37 properties — only a subset is shown here.

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PROPRIETARY ExELL D-2 Heat Treatments

Annealing: With a protective atmosphere or vacuum furnace, heat slowly to 1550°F (843°C). Equalize and hold one hour per inch of thickness. Furnace cool 20°F (11°C)/hr to 1000°F (538°C) and equalize. Air cool to room temperature. Hardness - 241 HB max.
Stress relieving: To minimize movement during heat treatment, a stress relieve can be used between the rough and finish machine operations of tool making before heat treatment. After rough machining, heat the part(s) to 1200°F (649°C), equalize and hold 1-2 hours. Furnace cool to 900°F (482°C) and then air cool.
Preheating: Heat to 1200-1250°F (649 - 677°C) and equalize. Continue heating to hardening temperature.
Hardening: Protect against oxidation and decarburization. Austentizing (hardening) temperature range is 1810 - 1920°F (988 - 1049°C)but hardening is usually at 1875°F (1024°C).
Quenching: Typical quenching media include: Circulating air or atmosphere; Forced air or gas; Step quench; Oil.
Hardening temperature: 1825°F (996°C), hold time: 60 min.; As-quenched hardness: 62 HRC.
Hardening temperature: 1850°F (1010°C), hold time: 45 min.; As-quenched hardness: 64 HRC.
Hardening temperature: 1875°F (1024°C), hold time: 30 min.; As-quenched hardness: 65 HRC.
Tempering: Temper immediately after quenching to about 150°F (66°C). Temper at least two times with a minimum 2 hour time for each temper.

PROPRIETARY ExELL D-2 Mechanical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Tensile Strength

723.9 — 2275.3 MPa

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Compression Strength

2620.01 — 3068.17 MPa

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Compression Yield Strength

val1 MPa

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Rockwell Hardness (HR)

val1

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Yield Strength, Rp0.2

379.2 — 1930.5 MPa

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1Cross References

6Composition
18Mechanical Properties
10Physical Properties
1Heat Treatment
-Metallography
-Machinability

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

-Joints
-Coatings
-Dimensions
-Tribology

-Corrosion
-Ageing
-Weatherability
-Irradiation

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