GI Pipe Weight Chart 2026: Complete Guide to GI Pipe Weights
GI Pipe Weight Chart 2026: Complete Guide to GI Pipe Weight, Calculation & Price
The GI Pipe Weight Chart 2026 is a useful reference for engineers, contractors, fabricators, architects, procurement professionals, and buyers working with galvanized iron pipes. GI pipes are widely used in plumbing, water supply, construction, agriculture, infrastructure, and industrial applications because their zinc coating provides additional corrosion protection.
Understanding GI pipe weight helps professionals estimate material quantities, calculate transportation requirements, plan storage, evaluate structural loads, compare supplier quotations, and prepare project budgets. Since GI pipes are available in different nominal sizes, outside diameters, wall thicknesses, and classes, their weight per meter varies according to the selected specification.
This guide explains GI pipe weights, Class A, Class B and Class C references, weight calculation formulas, GI pipe prices, practical applications, and important purchasing considerations.
GI Pipe Weight Chart
GI pipe weight is generally expressed in kilograms per meter (kg/m). The weight depends primarily on the pipe's outside diameter, wall thickness, class, and manufacturing specifications.
For commonly used round GI pipes, the following reference values can help with preliminary project calculations:
| Nominal Size | Outside Diameter | Wall Thickness | Class A kg/m | Class B kg/m | Class C kg/m |
|---|---|---|---|---|---|
| 1/2″ | 21.3 mm | 2.77 mm | 1.02 | 1.27 | 1.56 |
| 3/4″ | 26.7 mm | 2.87 mm | 1.28 | 1.58 | 1.94 |
| 1″ | 33.4 mm | 2.87 mm | 1.78 | 2.27 | 2.73 |
| 1 1/4″ | 42.2 mm | 3.25 mm | 2.46 | 3.11 | 3.79 |
| 1 1/2″ | 48.3 mm | 3.25 mm | 2.83 | 3.57 | 4.38 |
| 2″ | 60.3 mm | 3.65 mm | 3.68 | 4.63 | 5.56 |
| 2 1/2″ | 73.0 mm | 4.00 mm | 4.83 | 6.05 | 7.30 |
| 3″ | 88.9 mm | 4.00 mm | 5.87 | 7.35 | 8.87 |
| 4″ | 114.3 mm | 4.50 mm | 7.90 | 9.88 | 12.00 |
| 6″ | 168.3 mm | 5.49 mm | 13.00 | 16.20 | 19.90 |
These figures should be treated as reference values. Actual supplied pipe weights can vary because of manufacturing tolerances, dimensions, applicable standards, and zinc coating.
What Is a GI Pipe Weight Chart?
A GI Pipe Weight Chart is a reference table that shows the approximate weight of galvanized iron pipes according to their nominal size, outside diameter, wall thickness, class, and weight per meter.
For example, if a pipe has a listed weight of 7.35 kg/m, one meter of that pipe weighs approximately 7.35 kg. This information allows users to calculate the total weight for any required length.
Total Pipe Weight Formula
Total Pipe Weight = Weight Per Meter × Total Pipe Length
For example, if a GI pipe weighs 7.35 kg/m and a project requires 100 meters:
7.35 × 100 = 735 kg
Therefore, the estimated pipe weight is approximately 735 kg.
GI Pipe Weight Calculation Formula
The theoretical weight of a steel pipe can also be estimated using its outside diameter and wall thickness.
Formula
Weight (kg/m) = 0.02466 × WT × (OD − WT)
Where:
- OD = Outside Diameter in millimetres
- WT = Wall Thickness in millimetres
- 0.02466 = Steel weight conversion constant
This formula is useful for theoretical calculations. However, the actual weight of a finished GI pipe can differ slightly because of manufacturing tolerances and the zinc coating applied during galvanizing.
For critical engineering applications, buyers should verify the actual dimensions and manufacturer-certified weight.
Class A, Class B and Class C GI Pipes
GI pipes may be supplied in different classes, with differences in wall thickness and weight.
Class A GI Pipes
Class A GI pipes are generally associated with lighter-duty applications. Their relatively lower weight can be useful where reduced material weight is preferred and application conditions do not require heavier wall thickness.
Class B GI Pipes
Class B pipes are commonly used for general plumbing, water supply, construction, and engineering applications. They provide a practical balance between strength, weight, durability, and cost.
Class C GI Pipes
Class C GI pipes are generally associated with heavier-duty requirements. Their greater wall thickness results in higher weight per meter and may make them suitable for applications requiring heavier construction, subject to project specifications.
When selecting a heavier pipe class, transportation, lifting, storage, and structural support requirements should also be considered.
GI Pipe Price Per Kg and Per Meter
GI pipe prices depend on several factors, including pipe size, wall thickness, class, manufacturer, zinc coating, quantity, steel market conditions, GST, freight, and delivery location.
Suppliers may quote GI pipes on a per-kg, per-meter, or per-length basis. Understanding pipe weight makes it easier to compare quotations offered using different pricing methods.
For example, if the applicable GI pipe price is ₹80/kg and the pipe weighs 5 kg/m:
GI Pipe Price Per Meter = 5 × ₹80
= ₹400 per meter
For a 6-meter pipe:
₹400 × 6 = ₹2,400 per pipe
This is only an example calculation. Actual quotations may include GST, freight, loading, unloading, cutting, packaging, and other applicable charges.
Why GI Pipe Weight Matters
GI pipe weight is important for several stages of project planning. Contractors can use weight data to estimate the amount of material required before placing an order. Procurement teams can compare supplier quotations more accurately, while logistics teams can calculate approximate transportation loads.
Weight information is also useful for:
- Material estimation
- Transportation planning
- Structural load calculations
- Procurement planning
- Warehouse management
- Crane and lifting planning
- Project cost estimation
- Inventory control
For example, if a project requires 1,000 meters of pipe weighing 8 kg/m:
1,000 × 8 = 8,000 kg
The estimated material weight is therefore 8 tonnes.
Actual transportation planning should additionally consider packaging, bundles, loading equipment, vehicle capacity, and applicable transportation regulations.
GI Pipe vs MS Pipe Weight
GI pipes and MS pipes are both steel-based products, but GI pipes have a zinc coating produced through galvanizing. This coating provides additional corrosion protection and can contribute slightly to the finished product weight.
The final weight can depend on:
- Outside diameter
- Wall thickness
- Steel specification
- Zinc coating
- Manufacturing tolerance
- Manufacturer
Therefore, when accurate weight calculations are required, buyers should use the manufacturer's supplied weight instead of assuming that a galvanized pipe has exactly the same weight as an equivalent uncoated MS pipe.
Indian Standards for GI Pipes
Indian standards are important when purchasing GI pipes because they establish requirements relating to dimensions, manufacturing, testing, and product quality.
IS 1239 Part 1 is commonly referenced for steel tubes used for general engineering purposes.
IS 4736 relates to hot-dip zinc coatings on iron and steel articles and is relevant to galvanizing requirements.
IS 3589 covers steel pipes for water and sewage applications and may be applicable depending on the product and intended service.
The applicable standard should always be confirmed according to the specific project and purchasing requirement.
Factors Affecting GI Pipe Weight
Several factors influence the final weight of a GI pipe. Larger pipe diameters generally require more steel and therefore have greater weight. Similarly, increasing wall thickness increases the amount of material used per meter.
The zinc coating also contributes to finished weight. Manufacturing tolerances can create small differences between theoretical and actual values. Steel specifications and manufacturer-specific production practices can also influence the supplied product.
For large projects, even relatively small differences in weight can affect transportation costs, material calculations, and project budgeting.
How to Choose the Right GI Pipe
The correct GI pipe should be selected based on the application rather than weight alone. Before purchasing, consider:
- Application and service conditions
- Required pressure
- Nominal pipe size
- Outside diameter
- Wall thickness
- Pipe class
- Galvanizing requirements
- Applicable standard
- Required quantity
- Manufacturer specifications
- Delivery location
- Commercial requirements
Providing complete specifications to the supplier can reduce quotation errors and help ensure that the correct product is supplied.
Frequently Asked Questions
What is a GI Pipe Weight Chart?
A GI Pipe Weight Chart provides approximate pipe weights according to size, outside diameter, wall thickness, class, and weight per meter.
How do I calculate GI pipe weight?
Multiply the pipe's weight per meter by the required total length.
Total Weight = Weight Per Meter × Total Length
Does galvanizing increase pipe weight?
Yes. The zinc coating contributes to the finished weight of a galvanized pipe, although the exact increase depends on the coating and applicable requirements.
What is the difference between Class A, B and C GI pipes?
The classes generally differ in wall thickness and weight. Lighter classes have lower weight, while heavier classes generally have greater wall thickness and higher weight.
What is GI pipe price per meter?
GI pipe price per meter can be estimated by multiplying the pipe weight per meter by the applicable price per kilogram.
Get the Latest GI Pipe Price and Specifications
Sachiya Steel International supplies GI pipes and other steel products for construction, industrial, commercial, infrastructure, and engineering requirements. Buyers can contact the company for current pricing, available sizes, specifications, quantities, and project quotations.
Phone: +91 9769056007
Email: sales@sachiyasteel.com
Website: www.sachiyasteel.com
Conclusion
The GI Pipe Weight Chart 2026 is a valuable tool for estimating material requirements, calculating total pipe weight, planning transportation, comparing quotations, and preparing project budgets. Pipe weight depends on factors such as nominal size, outside diameter, wall thickness, class, manufacturing tolerances, and galvanizing requirements.
Using the appropriate weight chart together with theoretical calculations can make procurement and project planning more efficient. However, chart values should be treated as reference data, and actual dimensions and manufacturer-certified weights should be confirmed before final procurement.
GI pipe prices can also change according to steel market conditions, pipe specifications, zinc coating, order quantity, GST, freight, and delivery location. Therefore, buyers should obtain a current quotation based on their exact requirements.
Last Updated: August 2026
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