Galvanized SheetAndGalvanized Aluminum Zinc SheetThe difference lies in the different coatings. Galvanized steel sheets have a uniform layer of zinc material on their surface, which provides anodic protection to the base material. In other words, the zinc material undergoes substitutive corrosion, protecting the base material's use. Here, zinc acts like a human shield for an important figure, and it is only when the shield is sacrificed that the central figure comes into play. In contrast, the surface coating of aluminum-zinc coated steel sheets is composed of 55% aluminum, 43.5% zinc, and a small amount of other elements. Microscopically, the aluminum-zinc coating exhibits a honeycomb structure. Both aluminum-zinc coated steel sheets and galvanized aluminum sheets are based on steel plates (or substrates), then coated with different ratios of zinc and aluminum. In aluminum-zinc coated steel sheets, the aluminum content is 55% and the zinc content is 16-18%, while in galvanized aluminum sheets, the aluminum content is 5% and the zinc content is 38%. Therefore, these are two different types of coated steel sheets, with different applications and functions. In our country, currently...Aluminized zinc coatingBoards are available.