Material properties of tungsten copper alloys

Tungsten-copper alloys are alloys composed of tungsten and copper. Common alloys contain 10%–50% copper. These alloys are produced using powder metallurgy and possess excellent electrical and thermal conductivity, good high-temperature strength, and a certain degree of plasticity. At very high temperatures, such as above 3000℃, the copper in the alloy liquefies and evaporates, absorbing a large amount of heat and lowering the material's surface temperature. Therefore, these materials are also called "sweating metals."

Tungsten-copper alloys combine the advantages of both copper and tungsten, exhibiting high strength, high specific gravity, high temperature resistance, arc erosion resistance, good electrical and thermal conductivity, and good machinability. Using high-quality tungsten powder and oxygen-free copper powder, and applying isostatic pressing (high-temperature sintering-copper infiltration), the purity and accurate proportions of the product are ensured, resulting in a fine microstructure and excellent performance. It exhibits good arc-breaking performance, good electrical and thermal conductivity, and low thermal expansion.