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MS Pipe Weight Chart in kg/m
At Kamal Steels, our MS Pipe Weight Chart helps buyers, engineers, contractors and fabricators quickly determine the theoretical weight of mild steel pipes in kg per meter (kg/m). It serves as a reliable reference for comparing pipe sizes, outside diameter (OD), wall thickness, and pipe class before purchasing materials, estimating project costs, or starting fabrication work.
This guide includes comprehensive MS Pipe Weight Charts for round, square, rectangular and ERW pipes, along with standard pipe sizes, A, B, and C Class weight charts, and easy-to-understand pipe weight formulas. Whether you're looking for the weight of a 40 NB, 50 mm, or 2-inch MS pipe, you'll find accurate reference data to support engineering, construction, and industrial applications.
Use this page to calculate pipe weights, compare different pipe dimensions and select the appropriate product for your project. As a Manufacturer and Stockist, Kamal Steels provides MS pipes and related technical information for purchasing, fabrication and engineering requirements.
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MS Pipe Weight Chart in kg/m
The MS Pipe Weight Chart in kg/m below helps you estimate the weight of common mild steel pipe sizes based on their outside diameter (OD) and wall thickness. This chart is widely used for fabrication, structural engineering, construction, material procurement, and project planning to determine the approximate weight per meter of MS pipes.
| Pipe Size | Outside Diameter (OD) | Wall Thickness | Approx. Weight per Meter |
|---|---|---|---|
| 1/2 inch | 21.3 mm | 2.0 mm | 1.22 kg/m |
| 3/4 inch | 26.9 mm | 2.3 mm | 1.70 kg/m |
| 1 inch | 33.7 mm | 3.2 mm | 3.05 kg/m |
| 1.5 inch | 48.3 mm | 3.2 mm | 4.52 kg/m |
| 2 inch | 60.3 mm | 3.6 mm | 7.16 kg/m |
| 4 inch | 114.3 mm | 6.0 mm | 16.07 kg/m |
| 6 inch | 168.3 mm | 6.3 mm | 24.90 kg/m |
MS Square Pipe Weight Chart
The MS square pipe weight chart below shows the approximate weight per meter based on side dimensions and wall thickness. It is widely used for structural frames, fabrication, industrial equipment, gates, railings, and construction applications.
| Size | Wall Thickness | Weight per Meter |
|---|---|---|
| 25 × 25 mm | 2.0 mm | 1.39 kg/m |
| 40 × 40 mm | 2.0 mm | 2.23 kg/m |
| 50 × 50 mm | 3.0 mm | 4.37 kg/m |
| 75 × 75 mm | 3.0 mm | 6.73 kg/m |
| 100 × 100 mm | 4.0 mm | 11.84 kg/m |
MS Round Pipe Weight Chart
The MS round pipe weight chart is one of the most commonly used references for engineers, fabricators, and buyers. It provides the approximate weight per meter based on outside diameter (OD) and wall thickness for round mild steel pipes.
| Outside Diameter (OD) | Wall Thickness | Weight per Meter |
|---|---|---|
| 21.3 mm | 2.0 mm | 1.22 kg/m |
| 33.7 mm | 3.2 mm | 3.05 kg/m |
| 48.3 mm | 3.2 mm | 4.52 kg/m |
| 60.3 mm | 3.6 mm | 7.16 kg/m |
| 88.9 mm | 5.0 mm | 12.51 kg/m |
| 114.3 mm | 6.0 mm | 16.07 kg/m |
MS Rectangular Pipe Weight Chart
The MS rectangular pipe weight chart helps estimate the weight of rectangular hollow sections based on width, height, and wall thickness. These pipes are commonly used for fabrication, support structures, machinery frames, and construction projects.
| Size | Wall Thickness | Weight per Meter |
|---|---|---|
| 40 × 20 mm | 2.0 mm | 1.86 kg/m |
| 50 × 25 mm | 2.0 mm | 2.38 kg/m |
| 60 × 30 mm | 2.0 mm | 2.89 kg/m |
| 100 × 50 mm | 3.0 mm | 6.44 kg/m |
| 150 × 75 mm | 4.0 mm | 12.57 kg/m |
ERW Pipe Weight Chart
The ERW pipe weight chart helps estimate the weight of Electric Resistance Welded (ERW) pipes based on outside diameter (OD) and wall thickness. Since ERW and seamless pipes with the same dimensions have nearly identical theoretical weights, this chart is widely used in industrial, structural, and construction applications.
| Outside Diameter (OD) | Wall Thickness | Weight per Meter |
|---|---|---|
| 21.3 mm | 2.0 mm | 1.22 kg/m |
| 48.3 mm | 3.2 mm | 4.52 kg/m |
| 60.3 mm | 3.6 mm | 7.16 kg/m |
| 76.1 mm | 4.0 mm | 8.89 kg/m |
| 114.3 mm | 6.0 mm | 16.07 kg/m |
MS Pipe Size and Dimensions Chart
The MS pipe size and dimensions chart provides the nominal pipe size (NB), outside diameter (OD) and typical wall thickness for commonly used mild steel pipes. Pipe dimensions and wall thickness depend on the applicable pipe standard, specification and class. This information helps engineers, contractors and buyers select the appropriate pipe dimensions before calculating weight.
| Nominal Size | Outside Diameter (OD) | Typical Wall Thickness |
|---|---|---|
| 1/2 inch | 21.3 mm | 2.0 mm |
| 3/4 inch | 26.9 mm | 2.3 mm |
| 1 inch | 33.7 mm | 3.2 mm |
| 1.5 inch | 48.3 mm | 3.2 mm |
| 2 inch | 60.3 mm | 3.6 mm |
| 4 inch | 114.3 mm | 6.0 mm |
MS Pipe Standards and Dimensions
MS pipe standards and dimensions determine the applicable outside diameter, wall thickness, manufacturing requirements and other dimensional requirements for a particular pipe. The correct standard should be confirmed before using a weight chart for procurement or engineering calculations.
| Parameter | What It Indicates |
|---|---|
| Nominal Size / NB | The nominal designation used to identify the pipe size. |
| Outside Diameter (OD) | The external diameter of the pipe. |
| Wall Thickness | The nominal thickness of the pipe wall. |
| Pipe Class | A designation used in applicable pipe specifications to distinguish dimensional or service requirements. |
| Applicable Standard | The relevant specification or dimensional standard governing the pipe. |
A Class, B Class & C Class Pipe Weight Chart
The C Class, B Class & A Class Pipe Weight Chart compares approximate pipe weights for the listed outside diameters and class designations. Pipe wall thickness, weight and service requirements depend on the applicable pipe specification and class. Therefore, the relevant standard should be confirmed before using these values for procurement or engineering purposes.
The following values are based on [specific standard]. Actual dimensions and weights should be checked against the applicable product specification.
| Outside Diameter (OD) | A Class | B Class | C Class |
|---|---|---|---|
| 48.3 mm | 4.90 kg/m | 4.52 kg/m | 4.10 kg/m |
| 60.3 mm | 7.90 kg/m | 7.16 kg/m | 6.40 kg/m |
| 114.3 mm | 17.20 kg/m | 16.07 kg/m | 14.90 kg/m |
Pipe Weight Calculation Formula
The pipe weight calculation formula is used to determine the theoretical weight of mild steel, carbon steel, stainless steel, and ERW pipes based on their outside diameter, wall thickness, length, and material density. It is widely used in engineering, fabrication, estimation, and procurement.
Pipe Weight (kg/m) = 0.02466 × (Outside Diameter − Wall Thickness) × Wall Thickness
Where:
- Outside Diameter (OD) = Pipe outside diameter in millimeters (mm)
- Wall Thickness (WT) = Pipe wall thickness in millimeters (mm)
- 0.02466 = Constant based on the density of mild steel (7.85 g/cm³)
This formula provides the theoretical weight per meter of a pipe. Actual weights may vary slightly depending on manufacturing tolerances and applicable standards such as IS 1239, ASTM, or EN specifications.
MS Pipe Weight Formula
The MS pipe weight formula is used to calculate the theoretical weight of mild steel pipes based on their dimensions and material density. Engineers, fabricators, and procurement teams commonly use this formula to estimate pipe weight before ordering or fabrication.
Round Pipe Weight Formula
Weight per Meter = (π / 4) × ρ × (OD² − ID²)
Where:
- ρ (Density) = Density of Mild Steel (approximately 7,850 kg/m³)
- OD = Outside Diameter
- ID = Inside Diameter
For square and rectangular MS pipes, the weight is calculated by subtracting the inner cross-sectional area from the outer cross-sectional area and then multiplying the result by the density of mild steel.
The calculated value is the theoretical weight per meter. Actual pipe weight can vary because of manufacturing tolerances, dimensional variations, material density and the applicable product specification.
How to Calculate MS Pipe Weight
Follow these simple steps to calculate the theoretical weight of an MS pipe accurately:
- Measure the outside diameter (OD) or the side dimensions for square and rectangular pipes.
- Measure the wall thickness (WT) of the pipe.
- Convert millimetres to metres if you are using the formula manually.
- Apply the appropriate MS pipe weight formula based on the pipe shape.
- Use an MS Pipe Weight Calculator for faster and more accurate calculations.
Frequently Asked Questions
You can calculate MS pipe weight using the pipe's outside diameter (OD), wall thickness (WT), and the density of mild steel. For faster and more accurate results, you can also use an MS Pipe Weight Calculator.
The weight of a 50 mm MS pipe depends on its wall thickness. Pipes with thicker walls weigh more than pipes with the same diameter but thinner walls. Refer to the MS Pipe Weight Chart for standard values.
The weight of a 40 NB MS pipe varies according to its wall thickness and pipe class. You can determine the exact weight using the MS Pipe Weight Chart or the online calculator.
B Class MS pipes generally have thicker walls than C Class pipes, making them heavier and suitable for higher-pressure applications. C Class pipes are lighter and commonly used for general water supply and structural work.
A standard 2-inch (60.3 mm OD) MS pipe with a 3.6 mm wall thickness weighs approximately 7.16 kg per meter. The actual weight may vary depending on the pipe specification.
An MS Pipe Weight Chart is a reference table that shows the approximate weight of mild steel pipes based on their outside diameter, wall thickness, and size. It helps engineers, contractors, and buyers estimate material weight quickly.
Yes. As wall thickness increases, the weight of the pipe also increases. Two pipes with the same outside diameter can have different weights if their wall thicknesses are different.
Yes. For the same outside diameter and wall thickness, ERW pipes and MS pipes have nearly the same theoretical weight because they are calculated using the same steel density.
To calculate pipe weight, you need the outside diameter (OD), wall thickness (WT), pipe length, and the material density. These values are used in the standard pipe weight formula.
An MS Pipe Weight Chart helps estimate transportation loads, material costs, fabrication requirements, and project planning. It is widely used in construction, engineering, fabrication, oil & gas, and industrial applications.
MS pipe dimensions depend on the applicable product specification and dimensional standard. The nominal size, outside diameter, wall thickness and pipe class should be checked against the relevant standard before using a weight chart for procurement or engineering calculations.
Looking for High-Quality MS Pipes?
Kamal Steels supplies and stocks MS Pipes and ERW Pipes in different sizes, wall thicknesses and specifications for industrial, construction and engineering requirements.