Hot dip galvanized pipe is made of molten metal and iron matrix reaction to produce an alloy layer so that the matrix and the coating of the two combined. Hot dip galvanizing is first pickling the steel pipe. In order to remove the iron oxide on the surface of the steel pipe, after pickling, it is cleaned by ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride, and then sent into the hot dip plating tank. Hot dip galvanizing has the advantages of uniform coating, strong adhesion, and long service life. Complex physical and chemical reactions occur between galvanized pipe and molten bath to form a compact zinc-iron alloy layer with corrosion resistance. The alloy layer is integrated with the pure zinc layer and the steel tube matrix. Therefore, its corrosion resistance is strong. In the following Cangzhou Shenlong pipe we introduce the characteristics of hot dip galvanized steel pipe:

(1) Hot dip galvanized steel pipe, pure zinc layer has a dense thick cover on the surface of the steel, it can avoid any corrosion solution contact with the steel matrix, protect the corrosion of the steel matrix. In the general atmosphere, a zinc layer is formed on the surface of a thin layer of dense zinc oxide layer, which is insoluble in water, so the protective effect of the steel matrix. If other components of zinc oxide and the atmosphere form insoluble zinc salt, then the anti-corrosion effect is ideal.

(2) Hot dip galvanized steel pipe, with iron zinc alloy layer, dense, salt spray atmosphere at sea, and industrial atmospheric corrosion resistance characteristics;

(3) Due to the strong combination of hot dip galvanized steel pipe, zinc-iron miscibility, strong wear resistance;

(4) Because the hot-dip galvanized steel pipe has good ductility, firmly attached to the alloy layer and steel on the substrate, so hot plating can be cold stamping, rolling, stretching, bending and other forms without damage to the coating;

(5) Hot dip galvanized steel pipe, hot dip galvanized steel pipe, equal to the annealing treatment, can effectively improve the mechanical properties of steel matrix, eliminate the forming and welding stress of steel parts, conducive to the rotation behavior of steel structure.

(6) Hot galvanized steel pipe with a bright and beautiful surface.

(7) hot dip galvanized steel pipe, pure zinc layer is rich in plasticity of hot dip galvanized layer, for pure zinc, is basically close to the ductility of nature, so it is flexible.

Cangzhou Shenlong Pipe Manufacturing Co., Ltd. cooperates with Baosteel and Baogang to produce large-caliber seamless steel pipe, straight-seam welded pipe, spiral steel pipe, and pipe fittings. The products comply with API, ASTM, DIN, BS, and JIS standards, and can accept SGS, BV, and other inspections. The products are used in oil, natural gas, bridge, water conservancy, and other large-scale projects, which are worthy of trust.