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Tungsten

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Description

Many practical applications of tungsten are based on its high melting point and density and its low vapor pressure. Tungsten is an excellent material for high vacuum technology, dimensional stability, glass seals and furnace construction. In addition, tungsten’s high density gives it a capacity to absorb radioactive radiation. Tungsten has found wide use as additives to steel to enhance physical properties and an alloy with nickel, copper and iron to provide high density machinable materials.

Equivalent Materials

This material data has been provided by Matmatch.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyTemperatureValue

Density

23.0 °C

19.3 g/cm³

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Mechanical

PropertyTemperatureValue

Elastic modulus

23.0 °C

400 GPa

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Hardness, Vickers

23.0 °C

460 [-]

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Tensile strength

20.0 °C

1725 MPa

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500.0 °C

1035 MPa

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1000.0 °C

515 MPa

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Thermal

PropertyTemperatureValue

Coefficient of thermal expansion

23.0 °C

4.2E-6 1/K

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Melting point

3420 °C

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Specific heat capacity

23.0 °C

134 J/(kg·K)

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Thermal conductivity

23.0 °C

173 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical resistivity

23.0 °C

5.28E-8 Ω·m

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Chemical properties

PropertyValueComment

Tungsten

99.95 %

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min

Technological properties

Property
Application areas

Common applications of Tungsten: Lamp filaments, high temperature furnaces, welding electrodes