The galvanized varieties used for color-coated steel plates for construction are galvanized and alloy coated products. Their performance differences and uses are as follows: Hot galvanized The hot-dip galvanizing referred to here refers to hot-dip galvanized pure zinc. It is most widely used in construction. Before it was used as a color-coated substrate, it has been widely used in the construction industry and is currently the main variety of color-coated substrates for construction. Excellent corrosion resistance. Suitable for making building exterior panels. It can process a variety of levels such as general molding, stamping and deep drawing. Hot-dip galvanized The coating composition of this product is approximately 55% aluminum, 1.5% silicon, and the rest is zinc. It is characterized by excellent atmospheric corrosion resistance, 2-6 times that of galvanized sheet, and excellent corrosion resistance. It also has high temperature corrosion resistance of aluminum plate, smooth surface and good appearance, but the forming and welding properties of the plating layer are slightly worse. It is suitable for building exterior panels, and can be processed in various levels such as general molding and mechanical bite. Hot-dip galvanized aluminum The composition of the coating is 5% aluminum, 0.1% mixed rare earth elements, and the rest is zinc. It is characterized by good coating formability and atmospheric corrosion resistance 2-3 times that of hot-dip galvanized sheet. Good applicability and welding performance. Compared with hot-dip galvanized steel sheet, zinc flower is small and rarely used in bare state.