Hot-dip galvanized steel wire is a metal product manufactured from high-quality medium- or high-carbon steel through processes including pickling, phosphating, wire drawing, and hot-dip galvanizing. With a coating thickness ranging from 45 to 300 microns, it features strong coating adhesion and excellent, long-lasting corrosion resistance. In telecommunications systems, it is used for transmission lines serving telegraphy, telephony, wired broadcasting, and signal transmission.
In electric power systems, the wire's substantial, thick zinc coating and superior corrosion resistance make it suitable for armoring cables exposed to highly corrosive environments. Additionally, Galfan alloy (zinc-5% aluminum-rare earth) coated steel wire represents another type of coated wire; it offers better corrosion resistance than a pure zinc coating of the same thickness. Using this alloy-coated wire in overhead cables helps extend the overall service life of the cables, potentially reducing maintenance costs.

