PROPRIETARY BÖHLER W302 SUPERIOR Tool steels

Material group: Ferrous Alloys / Tool steels

Country / Standard: PROPRIETARY

Data updates

Latest Update: 2017-07

Total number of updates: 1

Update History

This material has 66 properties — only a subset is shown here.

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PROPRIETARY BÖHLER W302 SUPERIOR Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

0.3900

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

5.2000

UNIT

CAS NUMBER

7440-47-3

CRITERIA

VALUE

0.4000

UNIT

CAS NUMBER

7439-96-5

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-98-7

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7704-34-9

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-21-3

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-62-2

Böhler-Uddeholm AG, Product Data Sheets,

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PROPRIETARY BÖHLER W302 SUPERIOR Physical Properties

Temperature

0 - 30°C 30 - 100°C 100 - 300°C ≥ 300°C

PROPERTY / VALUE

Modulus of Elasticity

190 — 215 GPa

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Thermal Conductivity

val1 W/(m∙°C)

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Electrical Resistivity

0.52 Ω∙mm²/m

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Density

val1 kg/dm³

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Electrical Conductivity

val1 S/m

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Heat Capacity

val1 J/(kg∙°C)

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Poisson Coefficient

val1

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This material has 66 properties — only a subset is shown here.

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PROPRIETARY BÖHLER W302 SUPERIOR Heat Treatments

Annealing: Under protective atmosphere, heat through to 850°C. cooling in the furnace at a rate of 10 to 20°C/hr) down to 650°C, continue cooling in air. Stress Relieving: Under protective atmosphere heat through to 650°C, hold for 2 hours. Cool slowly in furnace to 500°C, continue cooling in air. Quenching (vacum): For large, complex tool geometries and thick cross sections may require an interrupted quench procedure. An interrupted quench at 450-550°C, equalize so the temperature differential between the surface and center(Ts and Tc) is less than 200°F or a maximum of 30 min. after Ts reaches the interrupt temperature, whichever occurs first. Continue the quench. Regardless of quenching media, tool must be tempered immediately after reaching 65°C. Hardening (under protective atmosphere): Initial preheat: heat through to 650°C; Second preheat: heat through to 840°C; Third preheat: heat through to 950°C; Hardening temperature: 1020°-1050°C

PROPRIETARY BÖHLER W302 SUPERIOR Mechanical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Brinell Hardness (HB)

229

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15Cross References

7Composition
1Mechanical Properties
41Physical Properties
1Heat Treatment
-Metallography
-Machinability

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

-Joints
-Coatings
-Dimensions
-Tribology

-Corrosion
-Ageing
-Weatherability
-Irradiation

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