Cold galvanized is electric galvanized, galvanized amount is very little, only 10-50g/m2, its own corrosion resistance is much different than hot galvanized steel pipe. Regular galvanized steel pipe manufacturers, in order to ensure quality, most do not use galvanized (cold plating). Only those small enterprises with obsolete equipment use electrogalvanizing, of course, their price is relatively cheaper. In the future, it is not allowed to use cold galvanized steel pipe as water and gas pipe. Material Standard: ASTM, ASME and API 5L PSL2; Size: 1/2 inch to 12 inch, 14 inch, 16 inch, 18 inch, 20 inch, and 24 inch for seamless; Wall thickness: SCH 10, SCH 20, SCH 30, SCH 40, STD, XS, SCH 60, SCH 80, SCH 100, SCH120, SCH160, XXS; Length Range: 20 FT (6 meter), 40FT (12 meter)or customized; Form: Round, Square, Rectangular Etc Ends Type: Beveled ends, Plain ends; End Protection: plastic Caps or iron Caps; Surface Coatings: Natural, Varnished, Black painting, 3PP, FBE and 3PE, Cladding and Lined etc.
