This article introduces copper conductivity materials (coppers and copper alloys) for electrical applications. It further provides details of its properties and uses.

Copper has the highest electrical conductivity. Its high strength, good machinability, high ductility, ease of jointing and good resistance to corrosion, further makes copper the prime choice as a conductor for electrical applications.

High conductivity copper is widely available with consistent high quality and is the most common form of the metal. It is the foremost option for the manufacture of bulk conductors such as transformer windings, cables, busbars, rotors and motor stators. However, for other electrical applications, such as commutators, connector parts, and catenary wires, the mechanical properties may require to be enhanced by the addition of appropriate alloying elements. The easiness with which copper can form alloys with other elements results in the availability of a very wide range of materials suitable for the full range of electrical applications.

As mechanical properties are enhanced by the addition of alloying elements, there is a trade off with a reduction in electrical conductivity.