MS Square Pipe Weight Chart 2026 – Size & Kg/m + PDF
Author : Sachiya International | Published On : 05 Oct 2026
MS Square Pipe Weight Chart 2026 – Size & Kg/m + PDF
Last Updated: September 2026
The MS Square Pipe Weight Chart 2026 is a useful reference for engineers, fabricators, contractors, architects, steel buyers, and procurement professionals who need to estimate the weight of square hollow sections. The weight of an MS square pipe mainly depends on its outside dimensions, wall thickness, steel density, manufacturing tolerances, and total length. An MS square pipe, also known as a Square Hollow Section (SHS), has four equal sides with a hollow internal section. Its balanced shape makes it suitable for structural fabrication, construction, industrial frameworks, machinery supports, gates, railings, furniture, agricultural equipment, and general engineering applications.
MS Square Pipe Weight Chart 2026
The following values are approximate theoretical weights based on a mild steel density of approximately 7850 kg/m³.
| MS Square Pipe Size | Thickness | Approx. Weight |
|---|---|---|
| 20 × 20 mm | 2.0 mm | 1.13 kg/m |
| 25 × 25 mm | 2.0 mm | 1.45 kg/m |
| 25 × 25 mm | 2.5 mm | 1.77 kg/m |
| 30 × 30 mm | 2.0 mm | 1.76 kg/m |
| 30 × 30 mm | 3.0 mm | 2.57 kg/m |
| 40 × 40 mm | 2.5 mm | 2.94 kg/m |
| 40 × 40 mm | 3.0 mm | 3.49 kg/m |
| 40 × 40 mm | 4.0 mm | 4.52 kg/m |
| 50 × 50 mm | 3.0 mm | 4.43 kg/m |
| 50 × 50 mm | 4.0 mm | 5.79 kg/m |
| 50 × 50 mm | 5.0 mm | 7.07 kg/m |
| 60 × 60 mm | 3.0 mm | 5.37 kg/m |
| 60 × 60 mm | 4.0 mm | 7.04 kg/m |
| 75 × 75 mm | 3.0 mm | 6.76 kg/m |
| 75 × 75 mm | 4.0 mm | 8.91 kg/m |
| 80 × 80 mm | 3.0 mm | 7.25 kg/m |
| 80 × 80 mm | 5.0 mm | 11.78 kg/m |
| 80 × 80 mm | 6.0 mm | 13.99 kg/m |
| 100 × 100 mm | 4.0 mm | 12.05 kg/m |
| 100 × 100 mm | 5.0 mm | 14.92 kg/m |
| 100 × 100 mm | 6.0 mm | 17.73 kg/m |
| 100 × 100 mm | 8.0 mm | 23.16 kg/m |
| 120 × 120 mm | 5.0 mm | 18.06 kg/m |
| 120 × 120 mm | 6.0 mm | 21.53 kg/m |
| 150 × 150 mm | 6.0 mm | 27.00 kg/m |
| 150 × 150 mm | 8.0 mm | 35.56 kg/m |
| 200 × 200 mm | 6.0 mm | 36.41 kg/m |
| 200 × 200 mm | 8.0 mm | 48.01 kg/m |
| 200 × 200 mm | 10.0 mm | 59.00 kg/m |
These are theoretical values for estimation. Actual supplied weight can vary because of dimensional tolerances, corner radius, manufacturing process, material specification, and applicable standards.
MS Square Pipe Weight Formula
The theoretical weight of an MS square pipe can be calculated from its cross-sectional area and steel density. The formula is:
Weight (kg/m) = [A² − (A − 2T)²] × 0.00785
Where:
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A = Outside dimension in mm
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T = Wall thickness in mm
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0.00785 = Steel weight conversion factor
The cross-sectional area is calculated by subtracting the internal hollow area from the external square area. This formula is useful when the required size is not directly available in a weight chart.
Example: 40 × 40 × 3 mm MS Square Pipe
For a 40 × 40 × 3 mm MS square pipe, the outside dimension is 40 mm and the wall thickness is 3 mm.
First calculate the internal dimension:
40 − (2 × 3) = 34 mm
Then calculate the cross-sectional area:
40² − 34² = 1600 − 1156 = 444 mm²
Now multiply the area by the steel conversion factor:
444 × 0.00785 = approximately 3.49 kg/m
Therefore, the theoretical weight of a 40 × 40 × 3 mm MS square pipe is approximately 3.49 kg/m.
MS Square Pipe Weight Per Foot
Weight may also be required in kilograms per foot. The conversion is:
Weight per foot = Weight per metre ÷ 3.28084
For a 40 × 40 × 3 mm pipe:
3.49 ÷ 3.28084 ≈ 1.06 kg/ft
For a 6-metre pipe:
3.49 × 6 = 20.94 kg
Therefore, one 6-metre 40 × 40 × 3 mm MS square pipe has an approximate theoretical weight of 20.94 kg.
How to Calculate Total MS Square Pipe Weight
For an order, use:
Total Weight = Weight per metre × Total Length
For example, if a project requires 100 pieces of 50 × 50 × 4 mm MS square pipe, with each pipe measuring 6 metres, the approximate weight is 5.79 kg/m.
Weight per pipe:
5.79 × 6 = 34.74 kg
For 100 pieces:
34.74 × 100 = 3,474 kg
Therefore, the estimated total weight is approximately 3.474 metric tons. This calculation is useful for material planning, transportation, storage, handling, and preliminary costing.
MS Square Pipe Price 2026
The MS Square Pipe Price in 2026 depends on size, wall thickness, raw material cost, market conditions, manufacturing process, quantity, testing requirements, certification, taxes, freight, and delivery location. A basic material-cost calculation is:
Estimated Material Cost = Total Weight × Price per kg
Because steel prices can fluctuate, buyers should obtain a current quotation based on the required specifications. For an accurate quotation, provide the pipe size, thickness, length, quantity, applicable standard, grade, documentation requirements, and delivery location.
Importance of Wall Thickness
Wall thickness has a direct effect on MS square pipe weight. For the same outside dimension, increasing thickness increases the steel cross-sectional area and therefore increases the kg/m value. A thicker pipe can also provide greater structural stiffness and resistance to deformation, depending on the design.
For example, a 50 × 50 × 5 mm pipe weighs considerably more than a 50 × 50 × 3 mm pipe. However, selecting a pipe should not be based only on weight. Structural loads, spans, connections, environmental conditions, design requirements, and applicable standards should also be considered.
MS Square Pipe and IS 4923
IS 4923 is an important Indian specification associated with steel hollow sections for structural applications. When ordering MS square pipes for structural projects, buyers should specify the outside dimensions, wall thickness, grade, applicable standard, length, quantity, testing requirements, certification, and inspection requirements.
For projects requiring traceability, a Material Test Certificate (MTC) may also be requested. The exact standard, grade, dimensions, and project requirements should be confirmed before purchasing.
Theoretical Weight vs Actual Weight
MS square pipe weight charts generally provide theoretical values. Actual supplied weight can differ due to wall thickness tolerance, outside dimension tolerance, corner radius, length tolerance, manufacturing process, surface condition, measurement method, and mill practices.
Therefore, theoretical kg/m values are useful for estimation, costing, quantity planning, design reference, and transportation planning. For final commercial reconciliation, the agreed purchasing terms and actual supplied material should be considered.
Applications of MS Square Pipes
MS square pipes are widely used in construction, fabrication, infrastructure, agriculture, engineering, and industrial applications. They are commonly used for structural frameworks, supports, sheds, platforms, machinery frames, equipment supports, gates, railings, partitions, furniture, racks, workstations, agricultural structures, and fabricated components.
Their square geometry provides balanced strength and makes them convenient for welding, fabrication, assembly, and structural applications.
How to Select the Right MS Square Pipe
Selecting the correct MS square pipe requires consideration of both technical and commercial requirements:
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Confirm the required outside size.
-
Select the appropriate wall thickness.
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Confirm the applicable standard and grade.
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Check whether MTC or inspection documentation is required.
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Calculate the approximate kg/m and total weight.
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Compare quotations based on specifications, quantity, certification, freight, taxes, delivery, and commercial terms.
Frequently Asked Questions
1. What is the weight of an MS square pipe?
The weight depends on its outside dimensions and wall thickness. A 40 × 40 × 3 mm MS square pipe weighs approximately 3.49 kg/m theoretically.
2. How is MS square pipe weight calculated?
Use the formula:
Weight (kg/m) = [A² − (A − 2T)²] × 0.00785
3. What density is used for MS square pipe calculations?
A nominal steel density of approximately 7850 kg/m³ is used for theoretical calculations.
4. What is the weight of a 40 × 40 × 3 mm square pipe?
It weighs approximately 3.49 kg/m, while a 6-metre length weighs approximately 20.94 kg.
5. Does wall thickness affect MS square pipe weight?
Yes. Increasing wall thickness increases the amount of steel and therefore increases the weight per metre.
6. How do I calculate the weight of a 6-metre pipe?
Multiply the kg/m value by 6.
7. Is MS square pipe chart weight actual weight?
Usually, chart values are theoretical. Actual supplied weight may vary according to manufacturing and dimensional tolerances.
8. What is IS 4923?
IS 4923 is an Indian Standard associated with steel hollow sections for structural applications. Project requirements should be confirmed before ordering.
9. How do I calculate total order weight?
Use:
Total Weight = Weight per metre × Total Length
For individual pipes:
Total Weight = kg/m × Pipe Length × Number of Pieces
10. How can I get the latest MS square pipe price?
MS square pipe prices vary according to size, thickness, quantity, market conditions, taxes, freight, and other commercial factors. Contact the supplier with complete specifications for a current quotation.
Final Takeaway
The MS Square Pipe Weight Chart 2026 – Size & Kg/m + PDF provides a practical reference for estimating theoretical pipe weight, calculating material quantities, planning transportation, and preparing preliminary costing. The main factors affecting weight are outside dimensions, wall thickness, steel density, and total length.
For structural applications, buyers should confirm the required size, thickness, standard, grade, testing, certification, MTC requirements, quantity, and delivery location before ordering. Sachiya Steel International Private Limited can support specification-based MS square pipe requirements and quotations.
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