HDG round pipe,galvanized steel pipe S355J2,galvanized steel tube S275JR
HDG round pipe,galvanized steel pipe S355J2,galvanized steel tube S275JR supplies from european standard EN 10025-2 specification for structural usage.Galvanizing can increase the corrosion resistance of steel pipe and prolong its service life.
HDG round pipe,Hot dipped galvanizing circular hollow section which is widely used for transmission of low pressure fluid such as water,oil,gas.
Galvanized steel pipe S355J2 can be used in deep ocean industry because of low temperature impact testing at -20 degree centigrade.
Galvanized steel tube S275JR processing steps:the clarinet,alkaline cleaning,washing,pickling,rinse,leaching agent,drying,hot dip galvanized within the outer wind or air cooling,water cooling,passivation,water rinse,inspection,weighing,warehousing.