Seamless pipes

Seamless pipes are derived from solid steel that is in sheet or bar form and is formed into a solid round shape known as [billets" which are then heated and cast over a form such as a piercing rod to create a hollow tube or shell. These kinds of pipes are known for their ability to withstand pressure more efficiently in comparison to other methods of pipe manufacturing processes, as well as being fast and cost-effective. Seamless pipes are generally used in gas lines, as well as pipes that carry liquids (JSTEEL, 2017).

Because seamless pipes are able to withstand high pressures, they are also widely used in high-pressure applications including refineries, hydraulic cylinders, hydrocarbon industries, and in Oil and Gas infrastructure (Pearlite Steel, 2017).

In comparison to other types of piping, seamless pipes do not require any welding or joints and are simply formed by solid round billets, which adds on to its strength and other characteristics including corrosion resistance. According to ASME, these pipes are also more effective in withstanding mechanical stress and have a higher operating pressure than welded pipes which are known as nonseamless pipes (Ferrostaal, 2017).