ASTM JIS Galvanized Steel Pipe Steel Pipe Galvanized Tubing for Industrial

1. The difference in manufacturing process: galvanized steel pipes and ordinary steel pipes are two categories of steel pipes. Galvanizing means that the surface of the steel pipe is galvanized, while ordinary steel pipes are not. 2. The difference in durability: galvanized pipes are more corrosion-resistant, and ordinary steel pipes can withstand higher pressures. Galvanized steel pipes are not easy to rust due to the protection of zinc, and galvanized steel pipes are lighter than ordinary steel pipes. 3. The difference in use: galvanized steel pipes are generally used for fences, fences, guardrails, etc. They are widely used in municipal engineering, roads, factories, schools, development zones, gardens, squares, communities and other places. Ordinary steel pipes are now basically replaced by galvanized steel pipes.

Galvanized steel pipes are divided into hot-dip galvanizing and cold-dip galvanizing. Hot-dip galvanizing is to immerse the pipe in high-temperature zinc liquid to allow the zinc to penetrate into the surface of the steel. The surface zinc layer of this pipe is thick and the anti-corrosion performance is higher than that of cold-dip galvanizing. Of course, the price is also higher than that of cold-dip galvanizing. Cold-dip galvanizing is actually electro-galvanized pipes. A layer of zinc is attached to the surface of the pipe through the electroplating chemical reaction, but the zinc layer is thin and easy to fall off. The price is cheaper. The prices of both are higher than ordinary steel pipes. After the surface of the galvanized pipe is specially sprayed, the anti-corrosion performance is dozens of times higher than that of iron pipes.