What Is GI Pipe?

By Juliet D'cruz

Are you curious to know what is gi pipe? You have come to the right place as I am going to tell you everything about gi pipe in a very simple explanation. Without further discussion let’s begin to know what is gi pipe?

When it comes to plumbing and construction, one material that is commonly used is the GI pipe. GI stands for Galvanized Iron, which is a type of steel that has been coated with a layer of zinc to protect it from rust and corrosion. In this blog, we will explore what a GI pipe is and its various applications.

What Is GI Pipe?

A GI pipe is a hollow cylindrical structure made of galvanized iron. The galvanization process involves coating the iron or steel with a layer of zinc, which acts as a protective barrier against rust and corrosion. The zinc layer is usually between 8 and 50 microns thick, depending on the intended use of the pipe.

GI pipes come in various sizes, ranging from ½ inch to 6 inches in diameter. They are usually manufactured in standard lengths of 6 meters, but can be cut to custom lengths as required. The thickness of the pipe also varies depending on the intended use, with thicker pipes being used for heavy-duty applications.

Applications Of GI Pipes:

GI pipes have a wide range of applications in plumbing, construction, and other industries. Some of the common uses of GI pipes include:

  1. Water supply: GI pipes are commonly used for water supply systems, both in residential and commercial buildings. They are preferred for their durability and resistance to corrosion.
  2. Gas pipelines: GI pipes are also used for gas pipelines, as they are capable of withstanding high-pressure environments and are resistant to corrosion.
  3. Electrical conduits: GI pipes can be used as electrical conduits for wiring in buildings. They provide a sturdy and durable structure for electrical wiring, and their resistance to corrosion ensures a longer lifespan.
  4. Scaffolding: GI pipes are often used as a structural component in scaffolding. Their strength and durability make them an ideal choice for supporting heavy loads.
  5. Agricultural applications: GI pipes are also used in agricultural applications such as irrigation systems and for making farm structures.


In summary, a GI pipe is a type of steel pipe that has been coated with a layer of zinc to protect it from rust and corrosion. It has a wide range of applications in plumbing, construction, and other industries. GI pipes are preferred for their durability, strength, and resistance to corrosion, making them an ideal choice for various applications. If you are planning a construction or plumbing project, consider using GI pipes for their long-lasting and reliable performance.

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What Is GI Pipe Made Of?

Galvanised Iron (GI) 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.

Is GI Pipe And Steel Pipe the Same?

MS and GI pipes are widely used all across the globe for pipelines and other operations. While the former is made from mild carbon steel, the latter is coated with zinc to prevent corrosion. At Utkarsh India, we are leading GI pipe and MS pipemanufacturers in India.

Which Is Better Ms. Or GI?

Mild steel is softer than galvanized iron but more prone to rusting when exposed to moisture or water over time; on the other hand, galvanized iron is more durable and corrosion-resistant but also more expensive than regular mild steel due to its protective zinc coating layer.

What Is GI Pipe And Ms. Pipe?

MS Pipe and MS Tube refers to Mild Steel Pipe or a Mild Steel Tubes. GI pipes have a coating of zinc metal on bare steel pipe, through a molten zinc bath, ensuring a natural corrosion resistance, even in outdoor condition. MS Black & GI Pipes are manufactured in different diameters for different applications.

What Does GI Stand For In Pipeline?

GI Stands For “Galvanized Iron”.

Thus, GI pipes are galvanized iron pipes, or called coated iron pipes in old terminology. GI carbon steel pipes are immersed in a galvanic (zinc) bath. GI (Galvanized Iron) Pipes are classified into 3 grades based on their weight per meter and inner diameter thickness.

Does GI Pipe Rust?

Water being acidic is one of the major reasons for the rusting/corrosion of the GI pipe. GI is no longer the most suitable material for water. Plastics like PVS/HDPE/PP are the current materials for pipes. They are inert and do not corrode or rust.

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