(1) Hot dip galvanized steel plate: A sheet of steel coated with zinc that is immersed in a molten zinc bath. At present, the main use of continuous galvanized production process, that is to roll the steel continuous dip in the molten zinc plating tank made of galvanized steel.
(2) Alloyed galvanized steel plate: This kind of steel plate is also made by hot dip method, but immediately after the groove, it is heated to about 500℃, so that it produces zinc and iron alloy film. The galvanized sheet has good coating adhesion and weldability.
(3) Electrogalvanized steel sheet: This kind of galvanized steel plate made by electroplating has good machinability. But the coating is thin, corrosion resistance as hot dip galvanized sheet.
(4) Single - sided and double - sided difference galvanized steel plate: Single-sided galvanized steel sheet, that is, a product that is galvanized on only one side. In welding, coating, rust treatment, processing and other aspects, has better adaptability than double-sided galvanized board. In order to overcome the disadvantage of uncoated zinc on one side, there is a galvanized sheet coated with a thin layer of zinc on the other side, that is, double-sided difference galvanized sheet.
(5) Alloy, composite galvanized steel plate: It is made of zinc and other metals such as aluminum, lead, zinc alloy or composite plate. This kind of steel plate has not only excellent rust resistance, but also good coating performance.
In addition to the above five kinds, there are color galvanized steel plate, printing coating galvanized steel plate, PVC laminated galvanized steel plate. But the most commonly used is still hot dip galvanized sheet.
