hot dip steel pipe

August 25, 2021

Technical requirements for hot-dip galvanized steel tubes

Hot-dip galvanizing is to pickle the steel pipe first. In order to remove the iron oxide on the surface of the steel pipe, after the pickling, it is cleaned in a tank of ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to In the hot dip plating tank.Hot dip galvanizing has the advantages of uniform coating, strong adhesion, long service life and strong corrosion resistance. Brand and chemical composition The grade and chemical composition of the steel for galvanized steel pipes should comply with the grade and […]