Galvanized square pipe from the production process is divided into hot dip galvanized pipe and cold galvanized pipe, galvanized pipe, plate or strip is used in the coil after forming welded square tube, a square tube and square tube in this on the basis of a hot dip galvanized square pool through a series of chemical reactions and the formation of production.Technology of hot dip galvanized pipe is simple, and the production efficiency is very high, many varieties of different specifications, equipment and funds that need little square, suitable for small manufacturers of galvanized square pipe.But from the strength for this kind of steel strength is far lower than the seamless pipe. And cold galvanized square tube is used in the the square on the use of cold galvanized square pipe with corrosion principle to achieve performance. Unlike hot galvanized cold galvanized coating mainly by electrochemical principle of corrosion, it is necessary to ensure the filling zinc and steel Point contact, resulting in the electrode potential difference, so the steel surface treatment is very important.

 

Because in the square of the treatment of galvanized galvanized square tube, so the galvanized square pipe by SHS have greatly expanded. It is mainly used in curtain wall, construction, machinery manufacturing, iron and steel construction projects, shipbuilding, solar photovoltaic bracket, steel structure engineering, electric power engineering, power plants, agricultural and chemical machinery, glass curtain wall, automobile chassis, airports and so on.