Channel steel grating is also called "hot-dip galvanized steel grating channel". Channel steel grating is a kind of flat steel that is crossed with cross bars at a certain distance and welded to form a square grid in the center. Steel products, this kind of steel grating is widely used in various fields of industry, and has strong resistance to external impact. Channel steel grating is generally made of carbon steel, and the surface is hot-dip galvanized, which can prevent oxidation. It can also be made of stainless steel.
Hot-dip galvanized steel grating in dry air, the zinc layer and oxygen will react chemically to generate zinc oxide. As the relative humidity of the air increases, zinc oxide is converted into zinc hydroxide. Zinc hydroxide and zinc oxide further react with carbon dioxide to form a corrosion product film of basic zinc carbonate. Basic zinc carbonate is not easy to dissolve and firmly adheres to the plating The appearance of the parts prevents the continued corrosion of zinc. This is the main reason why the hot-dip galvanized steel grating has a low corrosion rate in most atmospheric environments and can better protect the steel matrix from corrosion for a long time.