Rectangular and Square Tubular Steel: Discussing the Main Types of Steel Tubes

When constructing buildings and completing different industrial tasks, most contractors rely on tubes and pipes. These materials provide the integrity needed to ensure the stability of a structure.

Most of the time, even professionals interchange tubes and pipes. Although they may look alike, steel pipes and steel tubes are two different materials and are used for different applications.

First, steel pipes are mainly used for transporting fluids, gas, pellets, powders, and other products throughout factories and even cities and towns. They can also be used to keep electrical wires protected.

Steel tubes, on the other hand, have a larger variety of uses, from constructing building frames to cars and other vehicles. Steel tubes are stronger and more resistant than pipes. They also have a better tolerance to high temperatures and can, therefore, withstand higher pressures.

Aside from the differences in their applications, steel pipes and steel tubes also differ in their shapes. While steel pipes only occur as a hollow section with a round cross section, steel tubes can have different shapes, like square or rectangular.

In this article, we’ll talk about the main types of steel tubes. We’ll also discuss the uses of the different steel tube types.

What is Rectangular Steel Tubing?

Rectangular steel tubing is a type of metal pipe that’s made from rolled flat strips of steel, which are then welded together to create a rectangular shape. This type of tubing is used for a variety of applications, from machinery and construction to ornamental purposes. It’s also widely found in the automotive and furniture industries.

What is Square Steel Tubing?

Square steel tubing or square tubular steel is a type of steel tube that’s used for structural applications. Square tubes are formed from coils that are run through a series of dies. They are measured by their outside dimensions and wall thickness. Square steel tubing is also often used for frameworks, support columns, gates, and more.

main types of steel tubes

Rectangular and Square Tubing Applications

Rectangular and square tubing are primarily used in structural applications. They are also used for mechanical purposes in vehicles and other machines.

Building Construction

Both rectangular and square tubing are used in the construction of buildings. Their strength and durability allow them to support large amounts of weight and withstand extreme weather conditions.


Steel tubes are frequently used in the construction of bridges due to their strength and corrosion resistance. They can also be bent into different shapes, which makes them versatile and easy to use in bridge construction.


The strength and uniformity of rectangular and square tubing make them ideal for use in machine components. They are often used to construct frames, axles, and other parts that must remain rigid and durable.


Rectangular and square tubing are also used in the construction of many cars, trucks, and other vehicles. They can be found in the frames, brakes, and exhaust systems of many modern automobiles.

Ornamental Purposes

Rectangular and square tubing can be used to create sculptures, furniture pieces, art installations, and other ornamental works. These types of steel tubes are often found in decorative home fixtures, such as railings and fences.


Another use for the main types of steel tubes is furniture frames. Rectangular and square steel tubes provide the strength and durability needed for many types of chairs, tables, beds, and other pieces of furniture.

uses of different steel tube type

Why Consider Using Rectangular and Square Tubular Steel for Your Project

These steel tube types don’t only have a wide range of applications, but they also offer many benefits.


Since they are strong and durable, rectangular and square tubular steel can be used in projects that require structural stability and support. It can also withstand extreme weather conditions and won’t corrode easily.


They can also provide a sleek, modern look to machinery and furniture. The shape of the tubing can add a modern aesthetic to any project and will look presentable even when used outdoors.


Compared to other sturdy materials, square and rectangular steel tubes are much more lightweight. This makes them easier to transport and install.


Steel tubing is also relatively inexpensive compared to other materials and can be used for many applications. This allows you to save on costs while still achieving the desired functionality of your project.

Heat Resistant

Another characteristic of these main types of steel tubes is their heat resistance. This makes them ideal for holding products that are exposed to high temperatures.

High Tensile Strength

Rectangular and square tubular steel also have high torsional strength, which means they can withstand significant amounts of twisting or changing shape. This makes them suitable for use in high-stress applications.

Easy to Customize

The shape of the tubing can also be customized to fit any project. Whether you need a small or large section, you can easily customize square and rectangular steel tubing to fit different requirements. This makes them a versatile option for many applications.

steel tube types

Choose the Right Steel Tube Type for Your Project

Now that you know the uses of the different steel tube types and their advantages, it’s time to choose the right type for your project. Consider the application, strength, durability, and cost to decide which one is best for you.

When selecting steel tubing for your project, make sure to do extensive research and compare the products available. With the right guidance and advice, you can choose the best steel tube type for your needs.

Finally, be sure to always buy from a reputable supplier and make sure the steel tubing you purchase meets industry standards. This will ensure that your project is successful and that the steel tubing is suitable for your requirements.

At Global Nexus Corporation, you can be sure that you’re getting quality materials for your project every time. We offer a wide range of square and rectangular steel tubing in different sizes, shapes, and grades. Contact us to learn more about our products.

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