Square Metal

Round Vs. Square Brass Tube, Why Use the Different Shapes

There is no denying the versatility and strength of brass tube. The debate on these tubes isn’t whether they should be used; it is which shape is better suited for the job. Tubes made of brass come in all shapes and sizes. Common shapes range from the typical round and square, while other suppliers can make custom-made shapes upon a client’s request. All of this is because brass tubes have a lot of applications both in practicality and design.

When it comes to the round and square tubes, many still debate on which one is better. Here is a quick comparison of both shapes:

A 3D Rendering of Round Brass Tube Neatly Stacked Over Each Other

The Round Tube

The brass round tube is most commonly used for practical and architectural needs. They are designed for transporting fluid across one space to another in a quick and timely manner. Round tubes are very strong and rigid and the strength of the tube is evenly distributed in every direction. For those reasons, they have more structural integrity compared to their square counterparts.

Since the distribution of strength and metal is fairly even in round tubes, control during distortion and bending is easy to manage. This makes round tubes cutting more accurate when resizing the tubes for various uses. Round tubes are also easier to weld together because of their shape. Finally, add to the fact that round tubes are 20% lighter than square tubes, which makes them easier to transport for large construction projects. The result of all these advantages makes round tubes the better candidate for practicality.

The Square Tube

Upon first glance it seems like there is no use for brass square tubes in the market since round tubes already have a long list of advantages. Before discounting square tubes, take note of its advantages first. Square tubes are most commonly used for interior decorating purposes. They are used in fixtures and furniture to add color, stability, and enhanced durability.

A square tube is also very durable, but it does have its weak spots. It cannot hold as much weight as the round tube, nor is it capable of transporting liquid quickly, but it is very easy to cut. The best use for square metal tubes is for sharp corners where round tubes cannot fit. Projects like those dealing with beams and other complex angles are when square tubes are most useful.

Always Ask a Professional for Advice

Brass tubing is very handy, regardless of shape. However, using the tubes without doing more research on their specific uses and advantages can lead to trouble. If you are unsure of which tube shape is better for your project, ask a metal supplier or an experienced contractor for their opinions. It is better to be safe than sorry.

About Rotax Metals: Aside from the usual shapes and sizes there are also other brass tubing shapes available if you know where to look. Rotax Metals is the leading supplier of metals for all industries ranging from construction to jewelry making. Any kind of tube shape you want, they can provide. It is also a guarantee that all Rotax Metals products are high-quality and made using eco-friendly practices. With the help of Rotax Metals you can build and create anything out of metal.


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Metal tubes play an important role in the stability of many mechanical systems. They provide efficient structural support and also have aesthetic function when arranged systematically or if they are made from quality metals, such as bronze or brass. They usually come in different materials, lengths, and cross-sectional shapes in order to meet various needs and applications.

Purchase the Metal Tubes You Need from a Reputable Metal Supplier

They Are Not Pipes

While tubes and pipes have the same structure, they are not the same material. You can distinguish one from the other by the way their cross-sections are measured or determined. A tube’s cross-section is measured by its outside diameter, while a pipe is measured by its inside diameter.

The reason for this is that pipes are used for conveying fluids, which puts stress on its interior surface. Tubes, on the other hand, usually function as a structural element so the stress is expected to be concentrated within their outer layer. And there’s the issue of aesthetics, which isn’t much of a concern with pipes, considering that they will end up being buried underground or concealed within the walls and ceiling.

You may ask, if tubes only have structural functions, why do they have to be made to look like pipes in the first place? Well, that’s where consideration of efficiency comes in. It would be costly to use solid rods of similar diameters on structures. If you reduce they diameter to lessen the cost, the resulting metal would be too small to resist other forces. Plus, because tubes are hollow, they are lighter and easier to work with than solid bars.

Manufacturing Tubes

There are several metalworking techniques that are used for manufacturing tubes. The most efficient of these is extrusion, a process that involves pressing a material into a die to achieve a desired cross section. There are two ways to do it:

Cold-Drawing. Metal is drawn over a mandrel at room temperature. Because no chemical change is involved in the process, the “cold finished” is expected to have increased mechanical properties and uniform dimensional tolerances. Complex profiles, however, may require multi-pass drawing to produce the desired tolerances.

Annealing. To make it easier to extrude certain metals, they are subjected to heat treatment. This may alter the physical and sometimes the chemical properties of the metal but the result is almost the same as that of cold-drawing except the metal’s electrical conductivity is increased.

If you are looking for high-quality tubes for your project, you have to a supplier that has been in the business for many decades. Suppliers like Rotax Metals, which has been catering to various industries since 1947 surely have a huge inventory that you can choose from. Whether you need round or square metal tubing, they’ve got you covered.

About Rotax Metals: Rotax Metals is a premier provider of metal supplies based in Brooklyn. We specialize in all kinds of copper, brass, and bronze supplies. We cater to various industries and professionals, including architectural designers, furniture manufacturers, artisans, and metal fabricators. We also perform metal shearing, water jet cutting, and metal fabrication.


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