There are galvanized pipes, the materials of the pipes are Q235, etc., and the outside is galvanized.
1. Galvanized pipe, also known as galvanized steel pipe, is divided into two types: hot-dip galvanizing and electro-galvanizing. Hot-dip galvanizing has a thick galvanized layer, which has the advantages of uniform coating, strong adhesion, and long service life. The cost of electrogalvanizing is low, the surface is not very smooth, and its corrosion resistance is much worse than that of hot-dip galvanized pipes.
2. In order to improve the corrosion resistance of steel pipes, general steel pipes are galvanized. Galvanized steel pipe is divided into two types: hot-dip galvanized and electro-galvanized. The hot-dip galvanized layer is thick, the cost of electro-galvanized is low, and the surface is not very smooth. Oxygen-blowing welded pipe: used as an oxygen-blowing pipe for steelmaking, generally small-diameter welded steel pipe, with eight specifications ranging from 3/8 to 2 inches. Made of 08, 10, 15, 20, or 195-Q235 steel strips, in order to prevent corrosion, some need to be effectively aluminized.
