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Tungsten/Copper Alloy Rod (W 72/Cu28)

Formula: W 72/Cu 28
Form: Rod
Material: Tungsten/Copper Alloy
Commodity: Alloys
Goodfellow's range of tungsten/copper alloy rods includes the W 72/Cu28 composition. This rod combines tungsten's high density and stiffness with copper's thermal and electrical conductivity. The alloy's hardness, strength, and wear resistance make it suitable for electrical contacts and high-temperature structural parts like heat sinks and rocket nozzles. At the same time, its thermal expansion coefficient closely matches common ceramics, enabling assemblies with reduced thermal stress. With properties balanced between its constituents, the W 72/Cu28 alloy expands the utility of tungsten and copper.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Tolerances

Rod
Diameter =<10mm ±10%
Diameter >10mm ±5%

Material Properties for Alloys

Mechanical Properties
Element Value
Hardness - Rockwell 92
Tensile strength( MPa ) 600
Physical Properties
Element Value
Density( gcm⁻³ ) 14.4
Thermal Properties
Element Value
Specific heat( J K⁻¹ kg⁻¹ ) 210@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 198@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 10.2@20°C

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