Galvanized pipes, also known as galvanized steel pipes, are divided into hot dip galvanized and electro-galvanized. The hot-dip galvanizing layer is thick, the coating is uniform, the adhesion is strong, and the service life is long. The cost of electroplating is low, the surface is not smooth, and the corrosion resistance is worse than that of hot-dip galvanized pipes.
Galvanized steel pipe: Hot-dip galvanized steel pipe substrate and molten electroplating solution combine physical and chemical reactions to form a dense zinc-iron alloy layer corrosion-resistant structure. The alloy layer is integrated with the pure zinc layer and steel pipe substrate. Therefore, it has strong corrosion resistance.
Galvanized steel pipe: The zinc layer of cold-dip galvanized steel pipe is an electroplated layer, and the zinc layer is layered separately from the steel pipe substrate. The zinc layer is very thin. The zinc layer is simply attached to the steel pipe substrate and can easily fall off. Therefore, its corrosion resistance is poor. In new homes, it is prohibited to use cold-dip galvanized steel pipes as water supply pipes.
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