What is Galvanized Pipe?Galvanized pipe (GI pipe), also known as galvanized steel pipe, is primarily categorized as hot-dip galvanized and electro-galvanized. Hot-dip galvanizing produces a thicker, more uniform coating with strong adhesion, resulting in an excellent service life. Electro-galvanizing, on the other hand, is less expensive, but its surface smoothness is slightly less satisfactory, and its corrosion resistance is significantly inferior to that of hot-dip galvani...