GI pipes, or Galvanized Iron pipes, are a variety of steel pipes that are coated with a layer of zinc and made corrosion-resistant through a method called hot-dip galvanizing. GI pipes come in different sizes and thicknesses to fit diverse industrial needs making them one of the most commonly used pipes in various projects like water supply systems, plumbing, irrigation, construction, and structural support. Additionally, GI pipes’ corrosion-resistant properties make them suitable for projects that take place in an environment where they are exposed to moisture and harsh conditions.
GI Pipe Prices
GI Pipe prices on average start at ₱950.00 and go up to ₱50,000. The difference in prices depends on their weight per meter and their inner diameter thickness
| Item No. | Description | Price per Length | Remarks |
| 1 | GI Pipe, 1/2″, Sch40, Seamless | ₱946.27 | 6 meters / length |
| 2 | GI Pipe, 3/4″, Sch40, Seamless | ₱1,238.97 | 6 meters / length |
| 3 | GI Pipe, 1″, Sch40, Seamless | ₱1,679.34 | 6 meters / length |
| 4 | GI Pipe, 1 1/4″, Sch40, Seamless | ₱2,230.19 | 6 meters / length |
| 5 | GI Pipe, 1 1/2″, Sch40, Seamless | ₱2,662.38 | 6 meters / length |
| 6 | GI Pipe, 2″, Sch40, Seamless | ₱3,536.33 | 6 meters / length |
| 7 | GI Pipe, 2 1/2″, Sch40, Seamless | ₱5,628.55 | 6 meters / length |
| 8 | GI Pipe, 3″, Sch40, Seamless | ₱7,352.82 | 6 meters / length |
| 9 | GI Pipe, 4″, Sch40, Seamless | ₱10,482.83 | 6 meters / length |
| 10 | GI Pipe, 5″, Sch40, Seamless | ₱14,174.52 | 6 meters / length |
| 11 | GI Pipe, 6″, Sch40, Seamless | ₱18,381.56 | 6 meters / length |
| 12 | GI Pipe, 8″, Sch40, Seamless | ₱27,693.29 | 6 meters / length |
| 13 | GI Pipe, 10″, Sch40, Seamless | ₱39,320.67 | 6 meters / length |
| 14 | GI Pipe, 12″, Sch40, Seamless | ₱51,986.73 | 6 meters / length |
Advantages of GI Pipe
Corrosion Resistance – The galvanized coating on GI pipes provides excellent corrosion resistance that protects the steel from rust and other forms of corrosion. This makes GI pipes suitable for use in different environments, even those with high moisture levels.
Longevity – The galvanized coating in GI pipes enhances their durability and longevity. When you compare them to non-galvanized steel pipes, they have a longer lifespan especially when you expose both pipes to harsh conditions.
Versatility – GI pipes are versatile making them usable in different fields, including water supply systems, plumbing, irrigation, construction, and structural support. Additionally, their adaptability makes them suitable for a wide range of uses.
Disadvantages of GI Pipe
Weight – GI pipes can be heavier compared to some alternative materials like PVC or CPVC pipes which can impact handling and transportation, especially in large-scale projects.
Cost – While GI pipes are cost-effective in the long run, the initial cost can be higher than that of some non-metallic alternatives due to factors like the cost of raw materials and the galvanization process.
Limited Size Range – GI pipes may be versatile, but they have limitations in terms of larger diameters, which can be a disadvantage in applications that require very large pipes.
Potential for Clogging – Over time, the inner surface of GI pipes may develop rust or sediment buildup which could potentially lead to reduced water flow and the risk of clogging requiring additional maintenance to address this issue.
Video of GI Pipe
FAQs
What is a GI pipe?
The GI pipe is a type of pipe that is commonly used for conveying raw water and distribution of water in most rural water supply projects where it requires less water.
Which pipe is better GI or PVC?
The durability of a GI pipe is comparable to PVC pipes, however, the former is not corrosion resistant so it will eventually rust.
What is a galvanized pipe?
Galvanized pipes are a variety of steel pipes that are dipped in a protective zinc coating which helps prevent corrosion and rust.
How do I identify a GI pipe?
Based on their weight per meter and their inner diameter thickness, Galvanized Iron Pipes are classified into 3 grades. The thicker the pipe is, the better its performance and durability.
Is GI pipe water resistant?
GI pipes have been one of the most popular choices for water supply systems due to their resistance to corrosion even when they are exposed to moisture.