Home > > > Mild Steel Square Pipe Buying Guide 2026: Sizes, Weight, Price Factors and How to Choose the Right O

Mild Steel Square Pipe Buying Guide 2026: Sizes, Weight, Price Factors and How to Choose the Right O

Author : Mangaldeep Steels | Published On : 10 Nov 2026

Whether you are constructing a shed, installing a gate, building a mezzanine floor or developing a solar structure, Mild Steel Square Pipe is one of the most commonly used materials. It offers excellent strength, easy weldability and a clean, modern appearance. However, choosing the wrong size or thickness can increase project costs and compromise structural strength.

This comprehensive 2026 buying guide covers everything you need to know about Mild Steel Square Pipes, including available sizes, thickness, weight calculation, pricing factors and quality checks to help you make the right purchasing decision.

What Is a Mild Steel Square Pipe?

A Mild Steel Square Pipe, also known as an MS Square Pipe, MS Square Tube or Square Hollow Section (SHS), is a hollow steel section featuring four equal flat sides.

It is manufactured using low-carbon mild steel strips through the ERW (Electric Resistance Welding) process, in which the steel strip is formed into a square shape and welded along its length.

Due to its low carbon content, mild steel is easy to cut, drill, bend and weld, making it a preferred choice for fabricators, contractors and construction professionals.

In India, square hollow sections are generally manufactured according to IS 4923, the Indian Standard for hollow steel sections used in structural applications. Before purchasing, always confirm the applicable standard and steel grade with your supplier, as these factors directly influence the strength and load-bearing capacity of the pipe.

MS Square Pipe Sizes and Thickness Available

At Mangaldeep Steels, Mild Steel Square Pipes are available in a wide range of sizes, starting from compact 12×12 mm sections with 1 mm wall thickness and going up to heavy-duty 500×500 mm sections with 12 mm wall thickness.

The standard pipe length is 6 metres (approximately 20 feet). These pipes are also available with a galvanized silver finish that provides additional protection against rust and corrosion.

Choosing the right MS square pipe size and thickness depends on the application and structural requirements.

1. Light-Duty MS Square Pipes

Smaller sections such as 12×12 mm, 15×15 mm, 20×20 mm and 25×25 mm, with thicknesses ranging from 1 mm to 1.6 mm, are suitable for:

  • Furniture manufacturing

  • Window grills

  • Display racks

  • Decorative structures

  • Lightweight fabrication work

2. Medium-Duty MS Square Pipes

Medium-sized sections such as 38×38 mm, 40×40 mm, 50×50 mm and 72×72 mm, with thicknesses ranging from 1.6 mm to 3 mm, are commonly used for:

  • Main gates and railings

  • Staircase fabrication

  • Industrial and residential sheds

  • Solar mounting structures

  • General fabrication work

3. Heavy-Duty MS Square Pipes

Larger sections starting from 100×100 mm and above, with thicknesses ranging from 4 mm to 12 mm, are suitable for applications requiring higher strength and load-bearing capacity, including:

  • Structural columns and beams

  • Industrial warehouses

  • Heavy-duty trusses

  • Infrastructure projects

  • Large industrial structures

Selecting the correct dimensions and wall thickness is essential for ensuring structural stability, durability and cost efficiency.

How to Calculate MS Square Pipe Weight

Mild Steel Square Pipes are generally sold by weight in the Indian steel market. Therefore, understanding the weight calculation helps buyers estimate material requirements, compare supplier quotations and verify billing accuracy.

You can calculate the approximate weight of an MS square pipe per metre using the following formula:

MS Square Pipe Weight Formula:

Weight (kg/metre) = 4 × (Side − Thickness) × Thickness × 0.00785

Here, all dimensions should be measured in millimetres, and the final result will be in kilograms per metre.

Example:

Let's calculate the weight of a 40×40 mm MS square pipe with 2 mm wall thickness.

Weight = 4 × (40 − 2) × 2 × 0.00785

Weight = 4 × 38 × 2 × 0.00785

Weight = 2.39 kg per metre (approximately).

Since the standard pipe length is 6 metres:

Total Weight = 2.39 × 6

Total Weight = 14.3 kg (approximately).

Actual weight may vary slightly depending on the corner radius, manufacturing tolerances and material specifications. Therefore, always verify the final material weight using the weighbridge slip before accepting a bulk order.

What Decides the Mild Steel Square Pipe Price in 2026?

The Mild Steel Square Pipe price is generally quoted per kilogram (kg), and the final rate depends on several market and product-related factors.

Understanding these factors will help you compare quotations and choose the right supplier without compromising on quality.

1. Raw Material Prices

The price of hot-rolled (HR) steel coils, which are used as raw materials for manufacturing ERW pipes, is one of the biggest factors influencing MS square pipe prices. Any increase or decrease in steel coil prices can directly affect the final market rate.

In early November 2026, major Indian steel mills increased their flat steel list prices for November deliveries, keeping market rates firm.

2. Brand and Manufacturer

The manufacturer and brand also influence the final price. Established brands such as APL Apollo and other primary steel manufacturers may have slightly higher prices compared to locally manufactured secondary steel products. However, brand reputation, product consistency and quality standards are important considerations.

3. Pipe Size and Thickness

The dimensions and wall thickness of an MS square pipe directly affect its weight and material consumption. Pipes with higher wall thickness generally cost more because they contain more steel per metre.

4. Surface Finish

The type of finish also affects pricing. Galvanized MS square pipes generally cost more than regular black-finish pipes because of the additional zinc coating that helps protect against corrosion.

5. Order Quantity and Transportation

Bulk orders may offer better commercial rates compared to smaller quantities. Transportation charges, delivery distance and loading costs also contribute to the final purchase price.

Important Buying Tip: Always include 18% GST and transportation charges when comparing supplier quotations. A lower per-kg rate does not necessarily mean a better deal, especially if the supplied pipes are underweight. Compare the total landed cost, actual pipe weight and product quality before making your purchase.

5 Quality Checks Before You Buy Mild Steel Square Pipes

Before purchasing MS square pipes for residential, commercial or industrial applications, check the following five important quality parameters:

1. Check Brand Marking and IS Standards

Look for the manufacturer's brand name, product specifications and applicable IS standard printed or stencilled on the pipe. This helps verify product identification and compliance with the specified requirements.

2. Verify Wall Thickness

Use a vernier caliper to measure the wall thickness at multiple points. This helps identify thickness variations and ensures that the supplied material matches your order specifications.

3. Inspect the Welding Seam

Check the welded joint carefully. It should be smooth, continuous and free from visible cracks or defects that could affect the pipe's strength and durability.

4. Check Straightness and Corner Uniformity

Ensure that the pipe is straight and has uniform dimensions. The corners should be properly formed, without visible deformation or irregularities.

5. Ask for a Mill Test Certificate (MTC)

For bulk purchases and large project requirements, request a Mill Test Certificate from the supplier. It provides important information about the material grade, chemical composition and mechanical properties.

Why Buy from Mangaldeep Steels, Ghaziabad?

Choosing the right steel supplier is just as important as selecting the correct pipe size and thickness.

Mangaldeep Steels has been supplying quality steel products to builders, fabricators and industries across Northern India for more than 30 years. Located in Loha Mandi, Ghaziabad, we offer a wide range of steel products to meet different residential, commercial and industrial requirements.

We are an authorized stockist of leading brands, including APL Apollo, SAIL and JSW, ensuring access to genuine products with proper billing.

With ready stock available across a wide range of sizes and specifications, customers can source everything from small quantities for individual projects to full truckloads for large industrial requirements.

Along with Mild Steel Square Pipes, you can also explore our other steel products:

This makes Mangaldeep Steels a convenient destination for sourcing multiple steel pipe requirements from a single supplier.

Get Today's Mild Steel Square Pipe Rate

Steel prices can change frequently depending on raw material costs, market conditions and manufacturer pricing. Therefore, getting an updated quotation is the best way to know the current Mild Steel Square Pipe price.

If you are looking for a reliable MS square pipe supplier in Ghaziabad, connect with Mangaldeep Steels for product details, competitive quotations and expert assistance.

Contact Details:

Share your required pipe size, wall thickness and order quantity with our team. We will help you identify the most suitable and cost-effective option for your project.

Choose the right Mild Steel Square Pipe with Mangaldeep Steels – Your trusted steel supplier in Ghaziabad.