Gi Zinc Coating Square Steel Pipe, also known as galvanized steel pipe, is divided into two types: hot-dip galvanizing and electro-galvanizing. The cost of electrogalvanizing is low, the surface is not very smooth, and its corrosion resistance is much worse than that of hot-dip galvanized pipes.In hot-dip galvanizing, a complex physical and chemical reaction occurs between the steel pipe substrate and the molten plating solution to form a corrosion-resistant zinc-iron alloy layer with a tight structure. The alloy layer is integrated with the pure zinc layer and the steel tube substrate. Therefore, it has strong corrosion resistance.

Since galvanized square tube is galvanized on square tube, it makes the application range of galvanized square tube greatly expanded compared with square tube.Galvanized has a stronger protective effect and is more resistant to corrosion. The entire structure consists of zinc, forming a dense quaternary crystal, which forms a barrier on the steel plate, thus effectively prevents 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 on cut edges, scratches and scuffed plating, it forms an insoluble oxide layer that acts as a barrier. Light Weight Cold-rolled Gi Zinc Coating Square Steel Pipe is mainly used in curtain wall, construction, machinery manufacturing, steel construction projects, shipbuilding, solar power generation bracket, steel structure engineering, power engineering, power plant, agriculture and chemical machinery, glass curtain wall, automobile chassis, airport, etc.