Galfan steel wire is a type of coated steel wire that is made by applying a layer of Galfan coating to the surface of the wire. Galfan is a corrosion-resistant alloy composed of zinc and aluminum. The coating typically consists of approximately 95% zinc and 5% aluminum.

Galfan coating provides enhanced corrosion resistance compared to traditional Coated coatings, which are made solely of zinc. This makes Galfan steel wire suitable for use in various applications where corrosion protection is crucial, such as in the manufacturing of fencing, mesh, cables, and other products used in outdoor or harsh environments.

The combination of zinc and aluminum in Galfan coating results in improved performance in terms of corrosion resistance, adhesion, and durability. It is often chosen for its ability to provide extended protection against rust and other forms of corrosion.