Aluminized steel plate is a steel plate coated with a layer of pure aluminum. Or aluminum-silicon alloy containing 5% to 10% silicon on the surface of carbon steel. It has good high temperature oxidation resistance. It does not change color for a long time at 450℃. And the maximum use temperature can reach 750℃.It also has good atmospheric corrosion resistance, especially the corrosion of SO2, H2S, CO2 and other gases. The corrosion resistance is 3-6 times than that of Galvanized coil.