PROPRIETARY BÖHLER W705 Tool steels

Material group: Ferrous Alloys / Tool steels

Country / Standard: PROPRIETARY

Data updates

Latest Update: 2021-04

Total number of updates: 1

Update History

This material has 52 properties — only a subset is shown here.

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PROPRIETARY BÖHLER W705 Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

0.16

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

10.00

UNIT

CAS NUMBER

7440-48-4

CRITERIA

VALUE

10.00

UNIT

CAS NUMBER

7440-47-3

CRITERIA

VALUE

val1

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

Böhler Edelstahl, Product Data Sheets,

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PROPRIETARY BÖHLER W705 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

0.8 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 52 properties — only a subset is shown here.

Unlock detailed physical values across temperatures and conditions.

PROPRIETARY BÖHLER W705 Heat Treatments

Annealing: 720 to 740°C (1328 to 1364°F) / Controlled slow cooling in furnace (10 to 20°C/h / (18 to 36°F/h) to approx. 600°C (1112°F), air cooling.
Stress relieving: 600 to 650°C (1112 to 1202°F) Slow cooling in furnace; intended to relieve stresses set up by extensive machining, or in complex shapes. After through heating, hold in neutral atmosphere for 1 - 2 hours.
Hardening: 1050 to 1100°C (1922 to 2012°F) / oil, salt bath (500-550°C / 932-1022°F), air. Holding time after temperature equalization: 15 to 30 minutes
Tempering: Slow heating to tempering temperature immediately after hardening / time in furnace 1 hour for each 20 mm of work piece thick ness but at least 2 hours / cooling in air. It is recommended to temper at least twice. A third tempering cycle for the purpose of stress relieving may be advantageous
1^st tempering approx. 30°C (86°F) above maximum secondary hardness
2^nd tempering to desired working hardness
3^rd tempering for stress relieving. 30 - 50°C (86 to 122°F) below highest tempering temperature

PROPRIETARY BÖHLER W705 Mechanical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Brinell Hardness (HB)

≤ 320

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Rockwell Hardness (HR)

44.36 — 54.53

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3Cross References

7Composition
11Mechanical Properties
28Physical Properties
1Heat Treatment
-Metallography
-Machinability

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

-Joints
-Coatings
-Dimensions
-Tribology

-Corrosion
-Ageing
-Weatherability
-Irradiation

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