MS Square Pipe Weight Chart & Calculation 2026: Complete Guide

Last Updated: September 2026

Accurate weight calculation is essential when purchasing, designing, transporting, and installing mild steel (MS) square pipes. Engineers, fabricators, contractors, architects, and procurement teams frequently use an MS Square Pipe Weight Chart to estimate material quantities, calculate structural loads, prepare quotations, and determine transportation requirements.

An MS Square Pipe, also known as a Square Hollow Section (SHS), consists of a square-shaped hollow steel section with a uniform wall thickness. Its weight depends mainly on the outside dimensions, wall thickness, steel density, and manufacturing tolerances.

For other commonly used pipe profiles, you can also explore our MS Rectangular Pipes and MS Round Pipes.

This updated MS Square Pipe Weight Chart 2026 guide explains the calculation formula, provides commonly used theoretical weights, discusses IS 4923 requirements, explains actual versus theoretical weight, and gives practical information for purchasing MS square pipes.

Download the MS Square Pipe Weight Chart PDF.

[Download MS Square Pipe Weight Chart 2026 – PDF]

The PDF version can contain the complete size-wise weight table, calculation formula, conversion information, and important purchasing notes. A PDF download is useful for engineers, estimators, fabricators, procurement teams, and site personnel who need quick access to MS square pipe weight information.

MS Square Pipe Weight Chart 2026

MS square pipe weight chart 2026

The following table provides approximate theoretical weights for commonly used MS square pipe sizes. The values are calculated using a nominal steel density of approximately 7850 kg/m³. Actual supplied weight can vary depending on manufacturing tolerances, dimensions, corner radius, and applicable specifications.

MS Square Pipe Size Thickness Approx. Weight kg/m
20 × 20 mm 2.0 mm 1.13
25 × 25 mm 2.0 mm 1.45
25 × 25 mm 2.5 mm 1.77
30 × 30 mm 2.0 mm 1.76
30 × 30 mm 3.0 mm 2.57
40 × 40 mm 2.5 mm 2.94
40 × 40 mm 3.0 mm 3.48
40 × 40 mm 4.0 mm 4.52
50 × 50 mm 3.0 mm 4.43
50 × 50 mm 4.0 mm 5.79
50 × 50 mm 5.0 mm 7.07
60 × 60 mm 3.0 mm 5.37
60 × 60 mm 4.0 mm 7.04
75 × 75 mm 3.0 mm 6.76
75 × 75 mm 4.0 mm 8.91
80 × 80 mm 3.0 mm 7.25
80 × 80 mm 5.0 mm 11.78
80 × 80 mm 6.0 mm 13.99
100 × 100 mm 4.0 mm 12.05
100 × 100 mm 5.0 mm 14.92
100 × 100 mm 6.0 mm 17.73
100 × 100 mm 8.0 mm 23.16
120 × 120 mm 5.0 mm 18.06
120 × 120 mm 6.0 mm 21.53
150 × 150 mm 6.0 mm 27.00
150 × 150 mm 8.0 mm 35.56
200 × 200 mm 6.0 mm 36.41
200 × 200 mm 8.0 mm 48.01
200 × 200 mm 10.0 mm 59.00

Note: These are theoretical/approximate values intended for estimation. For commercial transactions, always consider the actual dimensions, applicable standard, mill tolerance, MTC, and supplied weight.

How to Calculate MS Square Pipe Weight

The weight of an MS square pipe can be calculated from its cross-sectional area and the density of steel.

Basic Formula

Weight (kg/m) = Cross-Sectional Area (m²) × Steel Density (kg/m³)

For a square hollow section:

Cross-Sectional Area = Outer Area − Inner Area

Therefore:

Weight = [A² − (A − 2T)²] × 7850

Where:

  • A = Outside square dimension in metres
  • T = Wall thickness in metres
  • 7850 kg/m³ = approximate density of mild steel

For additional size-wise weight information, refer to our MS Pipe Weight Chart.

Example: 40 × 40 × 3 mm MS Square Pipe

Outside dimension:

A = 40 mm = 0.040 m

Wall thickness:

T = 3 mm = 0.003 m

Inside dimension:

40 − (2 × 3) = 34 mm

Cross-sectional area:

40² − 34² = 1600 − 1156 = 444 mm²

Convert the area to square metres:

444 mm² = 0.000444 m²

Weight:

0.000444 × 7850 = approximately 3.49 kg/m

Therefore, the theoretical weight of a 40 × 40 × 3 mm MS Square Pipe is approximately 3.49 kg per meter.

MS Square Pipe Weight Per Foot

Many buyers and fabricators work in feet instead of metres. To convert the weight:

Weight per foot = Weight per metre ÷ 3.28084

For example, if a square pipe weighs 3.49 kg/m:

3.49 ÷ 3.28084 ≈ 1.06 kg/ft

For a standard 6-metre pipe:

Total weight = 3.49 × 6 = approximately 20.94 kg

This calculation is useful for estimating the total weight of individual pipes, bundles, truckloads, and project quantities.

For quick and convenient weight estimation, you can also use our Pipe Weight Calculator.

MS Square Pipe Weight Calculation for a Complete Order

Suppose a project requires:

100 pieces of 50 × 50 × 4 mm MS Square Pipe, each 6 metres long.

Approximate theoretical weight:

5.79 kg/m

Length per pipe:

6 m

Weight per pipe:

5.79 × 6 = 34.74 kg

For 100 pipes:

34.74 × 100 = 3474 kg

Therefore, the estimated total material weight is approximately:

3.474 MT

This type of calculation helps procurement teams estimate purchase quantities, transportation requirements, handling equipment, and approximate material costs before placing an order.

MS Square Pipe Price Section 2026

The price of MS Square Pipes is not determined by weight alone. Market prices can change according to raw material costs, steel market conditions, pipe dimensions, thickness, manufacturing process, quantity, location, GST, freight, and supplier terms.

For product specifications, available sizes, and related product information, visit our MS Square Pipes product page.

Indicative Price Calculation

A simple purchasing calculation can be made as follows:

Estimated Material Cost = Total Weight × Applicable Price per kg

For example, if the estimated order weight is 3,474 kg, the final material value can be calculated using the supplier’s current quoted rate per kilogram.

Because steel prices fluctuate, buyers should obtain a current quotation before making commercial decisions rather than relying on an old online price.

Factors Affecting MS Square Pipe Price

  • Steel raw material prices
  • Pipe size and wall thickness
  • Required grade and specification
  • Quantity ordered
  • Manufacturing process
  • Surface finish
  • Testing and certification requirements
  • GST and applicable taxes
  • Packing requirements
  • Delivery location
  • Freight and transportation
  • Market demand and availability

For the latest MS Square Pipe price, contact Sachiya Steel International Private Limited for a project-specific quotation based on size, thickness, quantity, standard, and delivery location.

MS Square Pipe Weight vs Length

Pipe length has a direct effect on total weight.

If the weight is known in kg/m, the total weight can be calculated using:

Total Weight = Weight per Metre × Total Length

For example:

Weight = 7.25 kg/m

Total length = 60 m

Therefore:

7.25 × 60 = 435 kg

This method is particularly useful for estimating the weight of multiple pipes when the order is specified in metres rather than individual pieces.

Why Wall Thickness Is Important

Wall thickness is one of the most important factors affecting the weight and structural performance of a square pipe.

For the same outside dimension, increasing the wall thickness increases:

  • Cross-sectional area
  • Weight per metre
  • Material consumption
  • Load-carrying capacity
  • Resistance to deformation
  • Structural stiffness

For example, a 50 × 50 mm square pipe with a 5 mm wall will weigh considerably more than a 50 × 50 mm pipe with a 2 mm wall.

However, selecting a thicker pipe solely because it weighs more is not necessarily the correct engineering approach. The required thickness should be selected according to structural calculations, loading conditions, design codes, corrosion allowance, connection details, and project specifications.

IS 4923 and MS Square Hollow Sections

For structural hollow sections in India, IS 4923 is an important specification covering steel hollow sections for structural applications.

When purchasing MS Square Pipes for structural work, buyers should clearly communicate:

  • Outside dimensions
  • Wall thickness
  • Required steel grade
  • Applicable standard
  • Pipe length
  • Testing requirements
  • Surface condition
  • Quantity
  • Certification requirements

Depending on the application, the buyer may also require a Material Test Certificate (MTC) confirming chemical and mechanical properties.

The standard and grade should always be verified against the specific project requirement rather than assuming that every commercially available MS square pipe has identical properties.

Theoretical Weight vs Actual Weight

An MS Square Pipe Weight Chart provides theoretical weight, while the actual weight of a manufactured pipe can differ.

Differences may occur because of:

  • Wall thickness tolerance
  • Outside dimension tolerance
  • Corner radius
  • Manufacturing process
  • Length tolerance
  • Surface condition
  • Mill practice
  • Measurement method

Therefore, a weight chart should be used for estimation, design calculations, inventory planning, and preliminary costing. For final commercial reconciliation, the actual supplied weight and relevant contractual terms should be considered.

Applications of MS Square Pipes

MS square pipe applications in construction and industrial projects

MS Square Pipes are widely used because their hollow geometry provides a useful balance between strength, weight, fabrication flexibility, and material efficiency.

Common applications include:

  • Structural frameworks
  • Industrial sheds
  • Warehouse structures
  • Staircase fabrication
  • Railings and handrails
  • Gates and fencing
  • Machinery frames
  • Agricultural equipment
  • Automotive structures
  • Construction supports
  • Solar mounting structures
  • Furniture and fabrication
  • General engineering applications

The appropriate pipe size and thickness should be selected according to the required load, span, connection method, environmental conditions, and design requirements.

For applications where higher corrosion resistance is required, you can also explore our range of Stainless Steel Pipes.

How to Choose the Right MS Square Pipe

Choosing the correct square pipe requires more than checking the outside dimensions.

1. Confirm the Size

Determine whether the project requires 25 × 25, 40 × 40, 50 × 50, 100 × 100 mm, or another size.

2. Select the Wall Thickness

Thickness should be based on engineering requirements and expected loads.

3. Confirm the Standard

Specify the required IS or project standard before ordering.

4. Check Certification

For critical applications, request the relevant MTC and test documentation.

5. Calculate Total Weight

Use the kg/m value to estimate the complete order weight.

6. Compare Commercial Quotations

Compare quotations based on specification, weight, certification, delivery, taxes, and freight—not only price per kilogram.

Why Choose Sachiya Steel International Private Limited?

Sachiya Steel International Private Limited supplies industrial steel products for construction, engineering, fabrication, infrastructure, and other applications. As an experienced Steel Pipes Manufacturer in India, the company supplies products according to customer specifications and project requirements.

Customers can discuss their required square pipe size, thickness, quantity, standard, documentation, and delivery requirements before receiving a commercial quotation.

The company focuses on specification-based supply, quality documentation, dimensional requirements, and dependable material sourcing.

Whether you require a small fabrication quantity or a larger industrial order, providing the correct technical details helps ensure that the quotation matches the actual project requirement.

For MS Square Pipe enquiries, specifications, availability, or quotation requirements, Contact Sachiya Steel International for assistance with your order.

Phone: +91 9769056007
Email: [email protected]
Website: www.sachiyasteel.com

Frequently Asked Questions About MS Square Pipe Weight

1. What is the weight of an MS Square Pipe?

The weight depends on the outside dimension and wall thickness. For example, a 40 × 40 × 3 mm MS square pipe has a theoretical weight of approximately 3.49 kg/m.

2. How is MS Square Pipe weight calculated?

The basic formula is:

Weight = [A² − (A − 2T)²] × 7850

where A is the outside dimension and T is the wall thickness, with dimensions converted into metres. You can also refer to our MS Pipe Weight Chart for commonly used sizes and theoretical weights.

3. What is the density used for MS Square Pipe calculations?

A nominal density of approximately 7850 kg/m³ is commonly used for theoretical mild steel weight calculations.

4. How do I calculate the weight of a 6-metre square pipe?

Multiply the theoretical weight per metre by 6.

Example:

3.49 kg/m × 6 m = 20.94 kg per pipe.

5. Does thickness affect MS Square Pipe weight?

Yes. For the same outside dimensions, increasing wall thickness increases the cross-sectional area and therefore increases the weight per metre.

6. Is the weight shown in a weight chart the actual weight?

Usually, a weight chart provides theoretical or calculated weight. Actual supplied weight can vary within applicable manufacturing and dimensional tolerances.

7. What is IS 4923?

IS 4923 is an Indian Standard specification associated with steel hollow sections for structural use. Buyers should confirm the required edition, grade, dimensions, and project specification before ordering.

8. How can I calculate the total weight of an MS Square Pipe order?

Multiply weight per metre × total pipe length.

For individual pipes, multiply the kg/m value by the length of each pipe and then multiply by the number of pieces.

9. What information should I provide when requesting an MS Square Pipe quotation?

Provide the pipe size, wall thickness, length, quantity, required standard/grade, certification requirements, destination, and any special testing or packing requirements.

10. How can I get the latest MS Square Pipe price?

MS Square Pipe prices fluctuate with steel market conditions and order specifications. Contact Sachiya Steel International with your required size, thickness, quantity, and delivery location to obtain a current quotation.

Final Takeaway

The MS Square Pipe Weight Chart 2026 is an important reference for estimating material weight, transportation requirements, project quantities, and preliminary costs. However, theoretical weight should not be treated as a substitute for actual dimensional inspection, applicable tolerances, certification, and project-specific engineering requirements.

By understanding the relationship between outside dimensions, wall thickness, cross-sectional area, steel density, and pipe length, buyers and engineers can make more accurate calculations and better procurement decisions.

For reliable MS Square Pipe sourcing, provide complete technical specifications and request a quotation based on your actual project requirements.

Sachiya Steel International Private Limited

Phone: +91 9769056007
Email: [email protected]
Website: www.sachiyasteel.com