Seamless Pipes vs. Welded Pipes: A Comparative Study

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Seamless Pipes vs. Welded Pipes: A Comparative Study
Seamless and welded pipes are two types of pipes used across various industries. This article aims to compare these two types of pipes in terms of their manufacturing process, strength, length, size, corrosion resistance, surface quality, economy, and application.To get more news about Steel pipe, you can visit friend-steelpipes.com official website.

Manufacturing Process
Seamless pipes are made from a solid round steel ‘billet’ which is heated and pushed or pulled over a form until the steel is shaped into a hollow pipe. On the other hand, welded pipes are made by cold forming flat strips, sheets, or plates into a round or circular shape by a roller or plate bending machine. The pipe is then welded with or without filler material using a high-energy source.
Strength
Seamless pipes are able to withstand more pressure and load as there is no weak seam. Due to welding, welded pipes are believed to withstand % less pressure and load as compared to seamless pipes.

Length
Seamless pipes are relatively shorter in length due to manufacturing difficulties. Welded pipes can be manufactured in long continuous lengths.

Size
Seamless pipes are usually manufactured for a nominal size of 4 inches or less. There is no such size restriction on welded pipe production.

Corrosion Resistance
Seamless pipes are less prone to corrosion which means they are more corrosion-resistant. The weld areas of the welded pipes are more prone to corrosion attacks, which means they have less corrosion resistance.

Surface Quality
The surface quality of seamless pipes is rough due to the extrusion process. Welded pipes have a smooth high-quality surface as compared to seamless pipes.

Economy
Seamless pipes are costlier than welded pipes due to the complex production process.

Application
Seamless pipes are widely suitable for high pressure, temperature, and corrosive environments. Welded pipes are used in low-temperature environments.

Conclusion
Both seamless and welded pipes have their own advantages and disadvantages. The choice between the two will depend on the specific application and the requirements of the project.

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