GALVANIZED IRON PIPES (G.I. PIPES)
Galvanized Iron (G) Pipes refers to the surface treatment of the pipes, whereas it is treated or coated with zinc coating through hot-dipped zinc bath. It is applicable only to carbon steel pipes.
Galvanized Iron Pipes are manufactured using mild steel strips of Low Carbon Steel Coils. The strips are passed through a series of fin rolls to give them a circular shape. The slit ends of the strips are then welded together by continuously passing high frequency electric current across the edges.
GI Pipes are generally used for distribution of treated or raw water in rural or urban areas. These pipes are cheaper, light weight and easy to handle.
Galvanized Iron Pipes are classified into 3 Grades based on their weight per meter and inner diameter thickness. The more the thickness, better the performance and durability. According to the IS 1239, each pipe shall bear a color strip across the circumference for identifying the “class” of the GI pipes.