Brass plating [bræs ˈpleɪtɪŋ ] – applying a layer of brass (70% copper and 30% zinc) to the surface of steel objects with a thickness of 1 to 10 microns using the electrolytic method. It is used to protect products from corrosion, to form a base layer before applying nickel or other coatings, and to provide a good bond between steel and rubber before plating.
Ex. Brass plating is the most widely used form of alloy plating today. Its origins date as far back as the mid 1600s.