ASTM A106 Gr.B Galvanized Steel Pipe

    ASTM A106 Gr.B hot dip galvanized pipe is a type of galvanized steel pipe. The hot-dip galvanized pipe is to make the molten metal react with the iron matrix to form an alloy layer, so that the matrix and the coating are combined together. The hot-dip galvanized steel pipe is pickled first. In order to remove iron oxide on the surface of the steel pipe, after pickling, it is cleaned in a tank of ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to a hot dip bath. Hot-dip galvanized steel pipe has the advantages of uniform coating, strong adhesion and long service life. A complex physical and chemical reaction occurs between the hot-dip galvanized steel pipe matrix and the molten pool to form a corrosion-resistant zinc-iron alloy layer with a dense structure. The alloy layer is integrated with the pure zinc layer and the steel pipe matrix, and has strong corrosion resistance.…