There is a galvanized pipe, the pipe is made of Q235 and so on, and it is galvanized outside.
1, galvanized pipe, also known as galvanized steel pipe, divided into hot-dip galvanizing and galvanized two kinds, galvanized zinc coating thickness, with uniform coating, strong adhesion, long service life and other advantages. The cost of galvanizing is low, the surface is not very smooth, and its corrosion resistance is much worse than that of the hot galvanized pipe.
2. In order to improve the corrosion resistance of the steel tube, the galvanized steel tube is galvanized. The galvanized steel tube is divided into two kinds of hot dip galvanizing and galvanizing, the hot galvanized zinc coating is thick, the electrogalvanizing cost is low, and the surface is not very smooth. Oxygen blowing pipe: used for steel smelting blowing tube, usually with a small diameter of the welded steel pipe, specifications from 3/8-2 inch eight. Some steel strips are made from 08, 10, 15, 20, or 195-Q235 steel. In order to prevent corrosion, some effective aluminizing treatment is required.