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Copper-tungsten
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Concept Métal, your supplier of copper-tungsten
The copper-tungsten (W-Cu) is a composite material that combines two qualities that are rarely compatible: the density and arc resistance of tungsten, and the electrical and thermal conductivity of copper. This combination makes it the material of choice for resistance welding electrodes, electrical discharge machining, and thermal management.
What is copper-tungsten?
The copper-tungsten is a composite consisting of a copper matrix and a tungsten skeleton, with the tungsten content typically ranging from 50 to 94 percent. By adjusting this ratio, the balance between density, conductivity, and wear resistance can be modified.
Grades of copper-tungsten are:
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The Properties of Copper-Tungsten
Copper gives the copper-tungsten excellent conductivity, which is essential for dissipating heat or conducting electricity. This is what makes it indispensable for heat sinks, electronic enclosures, and contacts.
Tungsten provides density, hardness, and resistance to ablation by the electric arc. The copper-tungsten can therefore withstand electrical discharges and erosion without deformation, a decisive advantage for electrodes.
The copper-tungsten has low thermal expansion and a cooling effect due to perspiration, which are useful in severe thermal applications and high-voltage contacts.
What are the industrial applications of copper-tungsten?
Thanks to its combined properties, copper-tungsten is used in resistance welding, electrical discharge machining, electronics, high-voltage applications, aerospace, and defense, as well as in custom-made electrodes to custom-made components to order according to drawings.
Applications
- Aerospace
- Defense
- Electronic components
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Resistance Welding Electrodes
- High-Voltage Contactor
Available Sizes
- Round bars
- Tubes
- Plates
- Strips
- Son
- Custom-made: blanks, blocks, discs, parts made to specifications
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