GI pipe price list for seamless and welded type including fittings.
Galvanized Iron (GI) pipes are one of the most commonly used piping materials in residential, commercial, and industrial construction. Known for their strength, corrosion resistance, and versatility, GI pipes are widely used for water supply lines, drainage systems, fencing, scaffolding, and structural frameworks. Therefore, staying updated with the latest GI pipe prices in the Philippines is essential for accurate budgeting and project planning.
What Are GI Pipes?
To begin with, GI pipes are steel pipes that have been coated with a layer of zinc through a process called galvanization. This coating protects the pipe from rust and corrosion, making it ideal for use in both indoor and outdoor applications.
Furthermore, GI pipes are available in a wide range of diameters and thicknesses, giving them a high degree of flexibility in different construction scenarios.
Available Sizes and Classifications
GI pipes are typically classified by nominal diameter (in inches) and pipe wall thickness, which determines their pressure rating. In the Philippines, the standard classifications are:
- Class A – thin wall (for low-pressure applications)
- Class B – medium wall (most commonly used)
- Class C – thick wall (for high-pressure or structural use)
In addition, GI pipes usually come in 6-meter lengths, though some suppliers may offer custom cutting upon request.
Where Are GI Pipes Commonly Used?
GI pipes are used across various sectors due to their durability and availability. Some of the most common applications include:
- Water supply and plumbing systems
- Drainage and vent piping
- Scaffolding and temporary structures
- Fence posts and handrails
- Structural support in construction projects
Moreover, GI pipes can also be threaded, welded, or joined using couplings—offering ease of assembly and adaptability on-site.
Factors That Affect GI Pipe Prices
GI pipe prices in the Philippines can vary depending on several factors:
- Pipe size (diameter and length)
- Wall thickness (Class A, B, or C)
- Material cost fluctuations (steel and zinc)
- Local supplier pricing and delivery fees
- Volume of purchase (retail vs. wholesale)
As a result, prices may change frequently based on market trends, so it’s best to confirm with local hardware stores or distributors.
For pipe installation man hours, please check the link: PIPE INSTALLATION MAN HOURS
For other pipe material price list, check the reference below:
– Stainless Steel Pipes, please check the link: SS PIPE PRICE LIST
– PPR Pipes, please check the link: PPR PIPES PRICE LIST
– uPVC Pipes, please check the link: uPVC PIPES PRICE LIST
– Black Iron Pipes, please check the link: BI PIPES PRICE LIST
SEAMLESS GI PIPE PRICE
Below is the updated price list for galvanized iron pipes, including different sizes and classifications. Please note that prices are subject to change depending on your location and quantity ordered.
| Seamless Galvanized Steel Pipes | |||
|---|---|---|---|
| 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 |
WELDED GI PIPE PRICE
| ERW Welded Galvanized Steel Pipes | |||
|---|---|---|---|
| Item No. | Description | Price per Length | Remarks |
| 1 | GI Pipe, 1/2″, Sch40, Welded | 603.28 | 6 meters / length |
| 2 | GI Pipe, 3/4″, Sch40, Welded | 807.06 | 6 meters / length |
| 3 | GI Pipe, 1″, Sch40, Welded | 1,243.13 | 6 meters / length |
| 4 | GI Pipe, 1 1/4″, Sch40, Welded | 1,698.36 | 6 meters / length |
| 5 | GI Pipe, 1 1/2″, Sch40, Welded | 1,962.65 | 6 meters / length |
| 6 | GI Pipe, 2″, Sch40, Welded | 2,627.07 | 6 meters / length |
| 7 | GI Pipe, 2 1/2″, Sch40, Welded | 4,373.68 | 6 meters / length |
| 8 | GI Pipe, 3″, Sch40, Welded | 5,396.37 | 6 meters / length |
| 9 | GI Pipe, 4″, Sch40, Welded | 8,359.55 | 6 meters / length |
| 10 | GI Pipe, 5″, Sch40, Welded | 11,344.41 | 6 meters / length |
| 11 | GI Pipe, 6″, Sch40, Welded | 15,718.29 | 6 meters / length |
| 12 | GI Pipe, 8″, Sch40, Welded | 24,458.69 | 6 meters / length |
| 13 | GI Pipe, 10″, Sch40, Welded | 32,355.38 | 6 meters / length |
| 14 | GI Pipe, 12″, Sch40, Welded | 44,128.11 | 6 meters / length |
GI FITTING PRICE LIST
For fitting not listed below such as flanges, you can use the price of the BLACK IRON PIPES AND FITTING. The galvanization cost is usually 28.50 Php per kilogram. For example, the weight of the flange is 2 kg, that is 57.00 Php additional cost on top of the flange cost. Below are the links where you can find the standard weight of steel pipes and fittings:
STEEL PIPES STANDARD WEIGHT – the weights are in kg/meter
STANDARD WEIGHT OF STEEL FLANGES – the weights are in lbs / p
ELBOW GI PRICE
| Galvanized Steel Fittings | |||
|---|---|---|---|
| Item No. | Description | Price per Piece | |
| 29 | GI 90deg Elbow, 1/2″, Sch40 | 40.03 | |
| 30 | GI 90deg Elbow, 3/4″, Sch40 | 46.33 | |
| 31 | GI 90deg Elbow, 1″, Sch40 | 69.47 | |
| 32 | GI 90deg Elbow, 1 1/4″, Sch40 | 103.23 | |
| 33 | GI 90deg Elbow, 1 1/2″, Sch40 | 182.07 | |
| 34 | GI 90deg Elbow, 2″, Sch40 | 207.30 | |
| 35 | GI 90deg Elbow, 2 1/2″, Sch40 | 408.36 | |
| 36 | GI 90deg Elbow, 3″, Sch40 | 572.93 | |
| 37 | GI 90deg Elbow, 4″, Sch40 | 1,043.67 | |
| 39 | GI 90deg Elbow, 6″, Sch40 | 1,775.35 | |
| 40 | GI 90deg Elbow, 8″, Sch40 | 3,865.89 | |
| 41 | GI 90deg Elbow, 10″, Sch40 | 6,816.38 | |
| 42 | GI 90deg Elbow, 12″, Sch40 | 12,375.56 | |
GI COUPLING PRICE
| Galvanized Steel Fittings | |||
|---|---|---|---|
| Item No. | Description | Price per Piece | |
| 43 | GI Coupling, 1/2″, Sch40 | 26.31 | |
| 44 | GI Coupling, 3/4″, Sch40 | 31.62 | |
| 45 | GI Coupling, 1″, Sch40 | 52.64 | |
| 46 | GI Coupling, 1 1/4″, Sch40 | 75.83 | |
| 47 | GI Coupling, 1 1/2″, Sch40 | 90.50 | |
| 48 | GI Coupling, 2″, Sch40 | 142.18 | |
| 49 | GI Coupling, 2 1/2″, Sch40 | 310.52 | |
| 50 | GI Coupling, 3″, Sch40 | 414.27 | |
| 51 | GI Coupling, 4″, Sch40 | 648.96 | |
GI TEE PRICE
| Galvanized Steel Fittings | |||
|---|---|---|---|
| Item No. | Description | Price per Piece | |
| 15 | GI Straight Tee, 1/2″, Sch40 | 92.64 | |
| 16 | GI Straight Tee, 3/4″, Sch40 | 140.04 | |
| 17 | GI Straight Tee, 1″, Sch40 | 254.91 | |
| 18 | GI Straight Tee, 1 1/4″, Sch40 | 421.51 | |
| 19 | GI Straight Tee, 1 1/2″, Sch40 | 645.61 | |
| 20 | GI Straight Tee, 2″, Sch40 | 814.17 | |
| 21 | GI Straight Tee, 2 1/2″, Sch40 | 1,036.41 | |
| 22 | GI Straight Tee, 3″, Sch40 | 1,331.42 | |
| 23 | GI Straight Tee, 4″, Sch40 | 1,919.63 | |
| 24 | GI Straight Tee, 5″, Sch40 | 2,809.96 | |
| 25 | GI Straight Tee, 6″, Sch40 | 4,433.35 | |
| 26 | GI Straight Tee, 8″, Sch40 | 8,855.34 | |
| 27 | GI Straight Tee, 10″, Sch40 | 14,780.18 | |
| 28 | GI Straight Tee, 12″, Sch40 | 22,131.30 | |
In addition, some suppliers may offer contractor discounts or package pricing when purchased together with fittings and accessories.
GI Pipe Accessories and Installation Notes
Alongside the pipes themselves, you’ll likely need:
- GI fittings (elbows, tees, reducers)
- Threaded couplings or unions
- Pipe hangers and clamps
- Sealant (Teflon tape or pipe dope)
- Cutting and threading tools
Furthermore, proper installation—including thread sealing and support spacing—is crucial to ensuring long-lasting performance and leak prevention.
Conclusion
In summary, GI pipes remain a reliable and cost-effective option for a variety of applications in plumbing, construction, and industrial projects. Their corrosion resistance, structural integrity, and ease of use make them a top choice for builders across the Philippines.
Therefore, keeping up with the latest GI pipe prices and specifications will help you create more accurate material estimates and avoid unexpected costs during procurement.
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