In order to improve the corrosion resistance of seamless pipe, the general seamless pipe is galvanized. The galvanized seamless pipe is divided into hot-dip galvanizing and electro galvanizing. The thickness of hot-dip galvanizing is thick, the cost of electro galvanizing is low, and the surface is not very smooth.
Oxygen blowing welded pipe: it is used as steel-making oxygen blowing pipe, generally using small caliber welded seamless pipe, with specifications of 3 / 8-2 inch and 8 kinds. Some seamless galvanized pipes made of 08, 10, 15, 20 or 195, Q235 steel strips need to be effectively aluminized in order to prevent corrosion.