According to different ways of galvanizing, it is divided into hot galvanized pipe and cold galvanized pipe.
Hot-dip galvanizing is performed by first pickling the steel pipe. In order to remove the iron oxide on the surface of the steel pipe, after pickling, cleaning is performed by an aqueous solution of ammonium chloride or zinc chloride or an aqueous solution of ammonium chloride and zinc chloride, and then fed. Hot dip plating tank. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life. It is generally used for the delivery of low pressure fluids (ie water, liquid gas).
Cold galvanizing is electro-galvanizing, and the amount of galvanizing is very small, only 10-50g/m2, and its own corrosion resistance is much worse than that of hot galvanized pipe. Cold galvanizing is generally used in electrical trunking. Regular galvanized pipe manufacturers, in order to ensure quality, mostly do not use electroplating zinc (cold plating). Only those small businesses with small scale and outdated equipment use electro-galvanizing, and of course their prices are relatively cheap. The Ministry of Construction has formally announced that cold galvanized pipes that are outdated in technology are not allowed to use cold galvanized pipes as water and gas pipes.
According to the wall thickness is divided into ordinary galvanized steel pipe and thick galvanized steel pipe.
According to the form of pipe ends, it is divided into non-threaded galvanized steel pipe and threaded galvanized steel pipe.
The above information is provided by the 51 steel pipe network (), and pipes such as steel pipes, seamless steel pipes, alloy steel pipes, and stainless steel pipes, etc., are used for 51 steel pipe nets.
Hot-dip galvanizing is performed by first pickling the steel pipe. In order to remove the iron oxide on the surface of the steel pipe, after pickling, cleaning is performed by an aqueous solution of ammonium chloride or zinc chloride or an aqueous solution of ammonium chloride and zinc chloride, and then fed. Hot dip plating tank. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life. It is generally used for the delivery of low pressure fluids (ie water, liquid gas).
Cold galvanizing is electro-galvanizing, and the amount of galvanizing is very small, only 10-50g/m2, and its own corrosion resistance is much worse than that of hot galvanized pipe. Cold galvanizing is generally used in electrical trunking. Regular galvanized pipe manufacturers, in order to ensure quality, mostly do not use electroplating zinc (cold plating). Only those small businesses with small scale and outdated equipment use electro-galvanizing, and of course their prices are relatively cheap. The Ministry of Construction has formally announced that cold galvanized pipes that are outdated in technology are not allowed to use cold galvanized pipes as water and gas pipes.
According to the wall thickness is divided into ordinary galvanized steel pipe and thick galvanized steel pipe.
According to the form of pipe ends, it is divided into non-threaded galvanized steel pipe and threaded galvanized steel pipe.
The above information is provided by the 51 steel pipe network (), and pipes such as steel pipes, seamless steel pipes, alloy steel pipes, and stainless steel pipes, etc., are used for 51 steel pipe nets.
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