GI Pipe Weight Chart 2026 – Class A, B, C Kg/m + PDF

Last Updated: September 2026

The GI Pipe Weight Chart 2026 is a useful reference for contractors, engineers, fabricators, architects, procurement professionals, and buyers who need accurate information about galvanised iron pipe weight per metre. GI pipe weight is important for material estimation, transportation planning, structural load calculations, purchasing, inventory management, and project cost estimation.

GI pipes are available in different nominal sizes, outside diameters, wall thicknesses, and pipe classes. As the pipe diameter and wall thickness increase, the weight per metre generally increases. A reliable GI pipe weight chart in kg/m therefore helps users estimate the quantity and approximate weight of pipes required for a project.

This guide provides GI pipe weight for Class A, Class B and Class C; GI pipe dimensions; weight per metre; price references; calculation formulas; applications; Indian standards; and frequently asked questions.

Download the GI Pipe Weight Chart 2026 PDF.

[Download GI Pipe Weight Chart 2026] 

The PDF can be useful for contractors, engineers, procurement teams, fabricators, and buyers who need a quick reference while preparing quotations, material estimates, purchase orders, transportation plans, and project calculations.

GI Pipe Weight Chart 2026 – Class A, B, C Kg/m

The following reference table provides GI pipe size, outside diameter, wall thickness, and approximate weight per meter for commonly used round GI pipes.

GI Pipe Weight Chart – Round Pipes

Nominal Size	Outside Diameter (mm)	Wall Thickness (mm)	Class A Weight (kg/m)	Class B Weight (kg/m)	Class C Weight (kg/m)
1/2″	21.3	2.77	1.02	1.27	1.56
3/4″	26.7	2.87	1.28	1.58	1.94
1″	33.4	2.87	1.78	2.27	2.73
1 1/4″	42.2	3.25	2.46	3.11	3.79
1 1/2″	48.3	3.25	2.83	3.57	4.38
2″	60.3	3.65	3.68	4.63	5.56
2 1/2″	73.0	4.00	4.83	6.05	7.30
3″	88.9	4.00	5.87	7.35	8.87
4″	114.3	4.50	7.90	9.88	12.00
6″	168.3	5.49	13.00	16.20	19.90

Note: The values above are reference values. Actual supplied pipe weights can vary according to applicable standards, manufacturing tolerances, pipe dimensions, and zinc coating. Your supplied source identifies the table as a reference for round GI pipes.

Download the GI Pipe Weight Chart 2026 PDF.

[Download GI Pipe Weight Chart 2026] 

Keep this PDF available for quick reference when comparing pipe sizes, estimating material quantities, or preparing project calculations.

GI Pipe Price Per Kg & Price Per Meter 2026

 

GI pipe prices can vary depending on several factors, including pipe size, wall thickness, pipe class, manufacturer, zinc coating, order quantity, steel market conditions, GST, freight, and delivery location.

GI pipes may be quoted on a per-kilogram, per-meter, or per-length basis. Therefore, buyers should understand the weight per meter before comparing supplier quotations.

For project estimation, the supplied reference content uses an indicative GI pipe price range of ₹65–₹82 per kg. The approximate price per meter can then be calculated using the Class B weight per metre.

GI Pipe Size	Class B Weight (kg/m)	Indicative Price (₹/kg)	Approx. Price (₹/m)
1/2″	1.27	₹65–₹82	₹82.55–₹104.14
3/4″	1.58	₹65–₹82	₹102.70–₹129.56
1″	2.27	₹65–₹82	₹147.55–₹186.14
1 1/4″	3.11	₹65–₹82	₹202.15–₹255.02
1 1/2″	3.57	₹65–₹82	₹232.05–₹292.74
2″	4.63	₹65–₹82	₹300.95–₹379.66
2 1/2″	6.05	₹65–₹82	₹393.25–₹496.10
3″	7.35	₹65–₹82	₹477.75–₹602.70
4″	9.88	₹65–₹82	₹642.20–₹810.16
6″	16.20	₹65–₹82	₹1,053.00–₹1,328.40

These prices are indicative reference values, not fixed quotations. The final price should be confirmed with the supplier based on size, class, specification, quantity, GST, freight, and delivery location.

GI Pipe Price Disclaimer

GI pipe prices are subject to market fluctuations. Steel prices, manufacturer, pipe class, wall thickness, zinc coating, order quantity, GST, freight charges, and delivery location can affect the final price.

The prices shown in this article should therefore be treated as reference information only. Buyers should request a current quotation based on the required GI pipe size, class, specification, quantity, and delivery location.

What Is a GI Pipe Weight Chart?

A GI Pipe Weight Chart is a reference table showing the approximate weight of galvanised iron pipes according to nominal size, outside diameter, wall thickness, pipe class, and weight per metre.

Weight is commonly expressed in kilograms per metre (kg/m). Once the weight per metre is known, the total weight of a required pipe quantity can be calculated easily.

For example, if a GI pipe weighs 7.35 kg/m and a project requires 100 metres:

7.35 × 100 = 735 kg

Therefore, the estimated pipe weight is approximately 735 kg.

GI pipe weight charts are useful for material estimation, purchasing, transportation, structural calculations, warehouse planning, and project budgeting.

How to Read a GI Pipe Weight Chart

Understanding the main specifications makes a GI pipe weight chart easier to use.

Nominal Pipe Size

Nominal pipe size is generally expressed in inches. Common sizes include:

• 1/2 inch
• 3/4 inch
• 1 inch
• 1 1/4 inch
• 1 1/2 inch
• 2 inch
• 2 1/2 inches
• 3 inch
• 4 inch
• 6 inch

Outside Diameter

Outside diameter, or OD, represents the external diameter of the pipe and is generally specified in millimeters.

Wall Thickness

Wall thickness represents the thickness of the steel pipe wall. A thicker wall generally results in a higher weight per meter.

Weight Per Meter

Weight per meter is expressed in kg/m and indicates the approximate weight of one meter of pipe.

Pipe Class

The pipe class identifies a particular dimensional or weight category. Your supplied reference describes Class A, B and C as progressively different weight/wall-thickness categories.

GI Pipe Weight Calculation Formula

The theoretical weight of a steel pipe can be estimated from its outside diameter and wall thickness.

Formula

Weight (kg/m) = 0.02466 × WT × (OD − WT)

Where:

• OD = Outside Diameter in mm
• WT = Wall Thickness in mm
• 0.02466 = Steel density conversion constant

This formula provides a theoretical estimate. The actual finished GI pipe weight can differ because of manufacturing tolerances and the zinc coating applied during galvanising.

For critical procurement requirements, buyers should verify the actual dimensions and manufacturer-certified weight.

How to Calculate Total GI Pipe Weight

The total pipe weight can be calculated using:

Total Pipe Weight = Weight Per Meter × Total Pipe Length

For example, if the GI pipe weight is 8 kg/m and the required quantity is 1,000 metres:

8 × 1,000 = 8,000 kg

Therefore:

Total estimated weight = 8,000 kg = 8 tonnes

This calculation is particularly useful for transportation planning, procurement, warehouse management, and project estimation.

How to Calculate GI Pipe Price Per Meter

When a supplier provides a price per kilogram, the approximate price per metre can be calculated using:

GI Pipe Price Per Meter = GI Pipe Weight Per Meter × Price Per Kg

Example

Suppose:

• GI Pipe Weight = 5 kg/m
• GI Pipe Price = ₹80/kg

Then:

5 × ₹80 = ₹400 per meter

For a 6-metre pipe:

₹400 × 6 = ₹2,400 per pipe

This is an example calculation only. Actual commercial pricing may include GST, freight, loading, unloading, cutting, packaging, and other charges.

Class A GI Pipes

Class A GI pipes are generally associated with lighter-duty applications and lower weight compared with heavier pipe classes.

Their lighter construction can be useful where lower material weight is required and the application does not demand a heavier wall thickness.

Before selecting a Class A GI pipe, users should verify the required application, pressure requirements, dimensions, and applicable product specification.

Class B GI Pipes

Class B GI pipes are commonly considered for general plumbing, water supply, construction, and engineering requirements.

They provide a practical balance between pipe weight, strength, durability, and cost for applications where the selected dimensions and specifications are appropriate.

The GI Pipe Weight Chart 2026 above provides Class B weight values in kg/m, allowing users to estimate total pipe requirements and approximate material weight.

Class C GI Pipes

Class C GI pipes are generally associated with heavier-duty requirements where greater wall thickness and higher pipe weight are required.

The higher weight should be considered when planning transportation, lifting, storage, pipe supports, and structural requirements.

The correct class should always be selected according to the application and applicable specification rather than weight alone.

GI Pipe vs MS Pipe Weight

GI pipes and MS pipes are both steel-based products, but GI pipes have a zinc coating applied through the galvanising process.

The zinc coating provides corrosion protection and can contribute to the finished weight of the galvanised pipe. Therefore, buyers should not automatically assume that the weight of a galvanised pipe will be identical to an equivalent uncoated MS pipe.

The final GI pipe weight can depend on:

• Pipe dimensions
• Wall thickness
• Steel specification
• Zinc coating
• Manufacturing tolerance
• Manufacturer

For large projects, even relatively small differences in weight can influence transportation and material calculations.

Indian Standards for GI Pipes

Indian standards are important when selecting GI pipes because they define relevant requirements for dimensions, manufacturing, testing, and product quality.

IS 1239 Part 1

IS 1239 Part 1 covers steel tubes and identifies classes, including Light, Medium and Heavy, with requirements relating to dimensions and mass. BIS documentation also identifies galvanised and black surface conditions within the product scope.

For procurement, the exact applicable edition and specification should be confirmed against the project requirement and supplier documentation.

IS 4736

IS 4736 is referenced in relation to zinc coating requirements for galvanised steel products. BIS laboratory documentation also references IS 4736 for uniformity of zinc coating in testing associated with IS 1239 Part 1.

IS 3589

IS 3589 covers steel pipes for water and sewage applications and may be relevant depending on the pipe type, dimensions, and intended service.

Important: The applicable Indian Standard should always be confirmed before procurement, particularly for critical engineering, water, infrastructure, or industrial projects. Your source likewise recommends verifying the applicable standard and product specification.

Factors Affecting GI Pipe Weight

Several factors can affect the final weight of a GI pipe.

Pipe Diameter

Larger pipe diameters generally require more steel material and therefore can have a higher weight per metre.

Wall Thickness

Wall thickness is one of the most important factors affecting pipe weight. A thicker wall generally increases the mass per metre.

Zinc Coating

The galvanising process adds a zinc coating to the steel surface, which contributes to the finished product.

Manufacturing Tolerances

Actual pipe dimensions can vary within permitted manufacturing tolerances, creating differences between theoretical and actual weight.

Steel Specification

The steel specification used for manufacturing can influence the product characteristics and applicable requirements.

Manufacturer

Manufacturing and galvanising practices can vary between suppliers. For important projects, manufacturer-specific technical documentation should be checked.