The coating treatment of copper-plated steel wire is to coat a layer of metal or alloy on the surface of non-smooth steel wire which requires coating. One of the purposes is to improve the service life of steel wire by anti-corrosion, such as galvanizing (see steel wire hot-dip galvanizing, steel wire galvanizing), aluminizing, galvanizing aluminium alloy, etc. The second purpose is to make steel wire have some special properties.

The main processes of copper-plated steel wire production include raw material selection, iron oxide scale removal, drying, coating treatment, heat treatment, wire drawing, coating treatment, etc.

It adopts high-quality steel as core wire and metal composite material made by drawing and copper plating process. It is mainly used in communication and electronics industry. It is a replacement steel wire for special materials of communication lines and cables. This steel wire has tensile strength and toughness of steel, electrical conductivity and high frequency characteristics of copper, and it can save copper material and reduce production cost. The advantages of this method are as follows.

Copper-plated steel wire is widely used in electronic industry and electrical industry. It can partly replace pure copper wire for power wire, audio wire, video wire, audio amplifier system and other products. The price is much lower than that of traditional pure copper wire. At the same time, it has the advantage of high tensile strength.