ASTM A653m Zero Spangle Galvanized Steel Coil

For Hot Dipped Galvanized Steel Coil, the Steel Sheet is dipped in a bath of molten zinc to coat its surface with a layer of zinc. It is mainly produced by continuous galvanizing process, that is, the rolled Steel Plate is continuously immersed in the plating tank, and the zinc is melted to make galvanized steel plate; alloy galvanized steel plate. This kind of steel plate is also made by hot dipped method, but it is heated to about 500 ℃ immediately after being out of the can to form a zinc-iron alloy coating. After the hot-dipped galvanized steel sheet is pulled out of the zinc pot, the appearance of the grains formed as the zinc layer cools and solidifies is called sequins. The size, brightness and surface topography of spangles depend on a range of factors, but are mainly related to the composition of the zinc layer and the cooling method. Hot Dipped Galvanized steel coil has the advantages of uniform coating, strong adhesion and long service life. Mainly used in construction, automobile, metallurgy, electrical and other industries. In the construction industry, it is mainly used to make roofs and walls, prefabricated keels, prefabricated bulkheads, doors and windows. In the automotive industry, it is mainly used to make body shells, chassis, doors, fuel tanks, etc