According to the making process of steel tubes, we can find welded and seamless tubes. Choosing from welded and seamless tubing mainly depends on the application and specifications.
A seamless tube is manufactured through an extrusion process where the tube is drawn from a heated solid billet and extruded into a hollow form. Then the hollow billet is rolled and stretched until it meets the length, diameter, and wall thickness as required.
A welded tube is produced through roll forming steel sheets into a tube shape and then welding the seam. After being welded, the newly formed tube is cut to a specific length as required. Generally, the welded tubing is cheaper than seamless tubing.
By contrast, seamless tubing is considered stronger than the welded tube. It is more suitable for high-pressure, high-temperature applications, such as oil and gas control lines. While the welded one is more economical, which is a great choice for many industries, for example, architectural applications.
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