Galvanising is the process of applying a protective coating (typically of zinc or magnesium) to steel or iron to prevent it rusting. The process involves the electrodeposition of eg zinc onto the surface of the steel wire with the coating acting as a sacrificial barrier that can slow or prevent corrosion.
Galvanised steel has all the physical strength and resilience characteristics of carbon steel but with a protective coating that provides enhanced corrosion resistance.
Used where the strength and reliability of a corrosion resistant steel are required at a price that is significantly lower than the cost of a stainless steel alternative. Typical applications are in the foundry industry and in the food processing sector as grease filters and disposable scouring products.