Shree Copper And Electricals

Galvanized Iron (GI) Pipes are hollow tubes made of mild steel that have been coated with a protective layer of zinc to prevent rust and corrosion.

Core Characteristics

• Corrosion Resistance: The zinc coating acts as a physical barrier and a "sacrificial anode," meaning it corrodes first to protect the underlying steel, even if the pipe is scratched.
• Manufacturing: These pipes are made from low-carbon steel strips that are rolled into a circular shape, welded at the seams, and then either hot-dip galvanized (immersed in molten zinc) or electro-galvanized.
• Durability: GI pipes have higher impact and abrasion resistance than standard steel because the zinc-steel alloy is harder than the base metal. 

Classification by Grade

In India, GI pipes are commonly classified under standard IS 1239 and are color-coded at the ends to indicate their wall thickness and weight.

 
Primary Applications

• Water Supply: Widely used in rural water schemes and domestic plumbing for both raw and treated water distribution.
• Structural & Construction: Essential for building frameworks, railings, support structures, and telecommunication towers.
• Agriculture: Ideal for borewells, sprinkler systems, and greenhouse frames due to their weather resistance.
• Industrial: Used for transporting non-potable liquids, gases, and chemicals in factories and oil/gas plants.