Hey there! As a supplier of steel hollow sections, I often get asked about the typical lengths of these products available in the market. So, I thought I'd write this blog to share some insights on this topic.
First off, let's understand what steel hollow sections are. They're basically tubular steel products with a hollow cross - section. They come in different shapes like square, rectangular, and circular, and are used in a wide range of applications, from construction to manufacturing.
Common Lengths in the Market
The lengths of steel hollow sections can vary quite a bit depending on several factors, such as the manufacturing process, customer demand, and transportation limitations.
Standard Lengths
In general, the most common standard lengths for steel hollow sections are around 6 meters (about 19.7 feet) and 12 meters (about 39.4 feet). These lengths are widely available because they're easy to handle during transportation and installation. For example, in a construction project, a 6 - meter length can be easily maneuvered on a building site, and if longer lengths are needed, multiple 6 - meter sections can be joined together.
A lot of our customers prefer these standard lengths because they fit well with standard building designs. For instance, in a warehouse construction, 6 - meter or 12 - meter steel hollow sections can be used as columns or beams, and they align nicely with the typical grid patterns of the building layout.
Custom Lengths
However, we also know that not all projects have the luxury of using standard lengths. That's why we offer custom - cut lengths as well. Some customers might need shorter lengths for specific components in a machine, or they might require longer lengths for large - scale infrastructure projects.
For example, in bridge construction, we've had customers ask for lengths of up to 20 meters or more. These custom lengths are carefully manufactured to meet the exact specifications of the project. We use advanced cutting and processing techniques to ensure that the custom - cut sections are of the highest quality.
Factors Affecting Length Availability
Manufacturing Process
The manufacturing process plays a big role in determining the available lengths. For seamless steel hollow sections, the length is often limited by the equipment used in the manufacturing. The process of creating a seamless tube involves piercing a solid billet, and there are practical limits to how long a seamless tube can be produced in one go.
On the other hand, welded steel hollow sections can be made in longer lengths more easily. The welding process allows for the joining of multiple pieces of steel to create a longer section. For example, we can take several shorter lengths of steel strip and weld them together to form a longer welded hollow section.
Transportation
Transportation is another crucial factor. Longer lengths can be more difficult and expensive to transport. There are restrictions on the length of goods that can be carried on trucks or trains. For instance, in many countries, the maximum length of a truck - load is around 16 - 18 meters. So, if we need to supply a 20 - meter length of steel hollow section, we might have to use special transportation arrangements, which can increase the cost.
Different Types of Steel Hollow Sections and Their Lengths
Circular Hollow Sections
Circular steel hollow sections are commonly used in applications like handrails, fencing, and structural supports. They're available in the standard lengths of 6 meters and 12 meters, but we can also cut them to custom lengths. The demand for circular sections in different lengths depends on the specific application. For example, in a handrail project, shorter lengths might be needed to fit around corners and curves.
Square and Rectangular Hollow Sections
Square and rectangular hollow sections are very popular in construction and engineering. They're used for building frames, mezzanines, and machinery frames. These sections are also available in standard lengths, and custom lengths can be provided as well. The Rectangular Tube we offer can be cut to any length our customers need, whether it's for a small - scale DIY project or a large commercial building.
Industry Standards and Lengths
In the steel industry, there are several standards that govern the production and dimensions of steel hollow sections. For example, the ASTM A618/A618M - 21 Hot - Formed Welded And Seamless Hollow Sections standard provides guidelines on the manufacturing and properties of hot - formed welded and seamless hollow sections. While this standard doesn't specifically dictate the lengths, it ensures that the sections meet certain quality and dimensional requirements, which is important for the overall performance of the product.
Another well - known standard is the BS1387 GALVANIZED STEEL PIPE. This standard is related to galvanized steel pipes, which are a type of steel hollow section. It also focuses on the quality and properties of the pipes, and while lengths can vary, the standard helps in maintaining consistency in the product.
How We Can Help You
As a supplier of steel hollow sections, we understand that every project is unique, and the length requirements can vary greatly. Whether you need a standard 6 - meter length for a simple fencing project or a custom 25 - meter length for a large - scale bridge construction, we've got you covered.
We have a wide range of steel hollow sections in stock, and our team of experts can help you choose the right length and type of section for your project. We also offer fast and reliable delivery services to ensure that your steel hollow sections arrive at your site on time.


If you're in the market for steel hollow sections and have specific length requirements, don't hesitate to get in touch with us. We're here to discuss your project needs, provide you with a quote, and help you find the best solution for your steel hollow section requirements. Let's work together to make your project a success!
References
- ASTM International. ASTM A618/A618M - 21 Standard Specification for Hot - Formed Welded and Seamless Carbon and Alloy Steel Structural Tubing.
- British Standards Institution. BS1387 Specification for screwed and socketed steel tubes and tubulars and for plain end steel tubes suitable for welding or for screwing to BS 21 pipe threads.