Hot sale and high quanlity cheap galvanized steel square pipe

 ♦ What is the difference between hot dip galvanized pipe and pre-galvanized pipe

Both pre-galvanized pipes and galvanized pipes can be welded, but pre-galvanized pipe are processed with galvanized steel strip for one-time forming, and the anti-corrosion time is not as long as that of hot-dip galvanizing, while hot-dip galvanized pipe is processed from black pipes,then go to galvanizing. After a high temperature of 1000 degrees, generally thin wall thicknesses are not hot-dip galvanized.

There is also the difference in quality and classification. Galvanized pipes can be processed into hot and cold galvanized pipes, while pre-galvanized pipe cannot be made into hot-dip galvanized pipes, because their wall thickness is relatively thin, so compared with hot-dip galvanized pipes The price of zinc pipe is higher than that of pre-galvanized pipe, the galvanized layer is thicker, and the storage time is longer.

♦ Application
Since the galvanized square pipe is galvanized on the square pipe, the application scope of the galvanized square pipe has been greatly expanded compared with the square pipe. It is mainly used in curtain wall, construction, machinery manufacturing, steel construction projects, shipbuilding, solar power brackets, steel structure engineering, power engineering, power plants, agricultural and chemical machinery, glass curtain walls, automobile chassis, airports, etc.
♦ Feature
Galvanized has stronger protective effect and strong corrosion resistance. The whole structure is made of zinc, forming a dense quaternary crystal, which forms a barrier on the steel plate, thus effectively preventing the penetration of corrosion factors. The corrosion resistance comes from the strong protective function of the barrier layer of zinc. When zinc is used as sacrificial protection in cutting edges, scratches and coating scratches, zinc will form an insoluble oxide layer and play a barrier protection function.