Structural steel tubing is a steel-based product utilized to construct various structures, including buildings, bridges, canopies and other structures. It is crafted from steel alloy, intended to offer stability and support to the final form. The material is an excellent choice for diverse uses, with its strength, long-lasting nature, adaptability, and corrosion resistance.

Selecting the appropriate tubing is crucial to ensure that a structure can bear the intended loads and stress levels. This requires an understanding of the factors that may impact the dependability of the final result. This article will explore the key considerations in choosing the right steel tubing for a particular application.

Essential Factors To Consider in Structural Steel Tubing Selection

Selecting the right tubing for stability and longevity should involve evaluating various factors that contribute to the suitability of the material for a particular application. Here is a closer look at the essential aspects that will significantly impact the overall performance of the finished structure:

Material Options

Carbon steel is a widely used material in the production of structural tubing due to its excellent mechanical properties and affordability. Its production starts with steel coils typically made from low-carbon steel. Low-carbon steel contains a relatively small amount of carbon, usually less than 0.3%, which provides good formability and weldability.

Tubing Methods

The choice between seamless and welded tubing can impact the performance and suitability of the tubing for an application. Seamless tubing is made from solid steel without welds or seams. This results in a smooth and consistent surface, which makes it ideal for high-pressure and high-temperature applications.

On the other hand, welded steel tubing is made from multiple pieces of steel that are welded together. This makes it a more cost-effective option as it involves roll-forming strips or sheets of steel into a tube shape and then welding the seam longitudinally. This method allows for efficient production and cost savings compared to other techniques.

Temperature Range

The temperature range specifies the maximum and minimum ambient temperatures the tubing can handle without compromising its integrity. For instance, high-temperature applications — such as chemical engineering, automotive components, aerospace equipment, etc. — require materials that maintain structural integrity without losing strength. Meanwhile, low-temperature applications — such as buildings and structures located in areas with heavy snow loads — need tubing materials that can withstand cold temperatures without becoming brittle.

Corrosion and Erosion Capabilities

Ensuring a structure can withstand environmental factors requires a tubing material and method with strong corrosion and erosion resistance capabilities. Coating, priming or galvanizing steel is often preferred when tubing is exposed to saltwater or acidic environments due to the enhanced corrosion resistance provided by these services


The expenses associated with the tubing — including the cost of materials and fabrication — often depend on the tubing type, size, and required quantity. Typically, carbon steel tubing is the most economical option, whereas stainless steel and other specialized alloys may be more costly. Nevertheless, it is critical to factor in the long-term expenses and advantages of using different materials.

Delta Steel for High-Quality Structural Steel Tubing Products

Delta Steel has been the leading provider of structural steel tubing in the market since 1963! We are dedicated to providing high-quality steel products and precise processing, which enable us to offer other services like robotic coping, plate burning, and forming. Furthermore, our top priority is maintaining ethical and professional business practices with our customers, suppliers, and employees.

Get in touch with us today to explore our services! You may also submit a quote request right away.