Seamless pipe 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. Seamless pipe is manufactured by the round steel billet, through hot rolling, cold rolling or cold drawn processes, no seam on the pipe body.
Hot rolled seamless pipe is formed by billet forging, perforation, rolling, shaping and other processes. For Large diameter pipe, and thick walled seamless pipe usually made in this way. Cold drawn seamless pipe used cold-drawn forming technology. The material strength is relatively low, the appearance and internal control surface is smooth. Small diameter and thin wall seamless pipe usually made in this way. The seamless pipe are rolled by carbon structural steel, low alloy structure steel or alloy structure steel and stainless steel.
The reason why most of the people prefer seamless pipe over welded steel pipe is that seamless pipes can withstand extremely high pressure without cracking. Seamless pipe are also thinner and lighter than welded ones, and they also have uniformity of shape as they are made up of uniform extrusion of an alloy.
The advantages of seamless pipe make it the material of choice for a range of commercial pipeline applications, including shipbuilding, pipelines, oil rigs, oil field equipment, pressure vessels, mechanical parts and offshore rigs. Another benefit of seamless pipes is that they perform well in harsh conditions, which means they can be used in extremely cold or extremely hot environments.
If you are considering using seamless pipe for your next commercial piping project, please contact us and request a quote. As a leading international steel pipe supplier, we can provide you with the products you need and quickly ship your orders to anywhere in the world.
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