10-30-2023, 03:35 AM
In the world of piping, two types dominate the market: seamless and welded pipes. Each type has its unique manufacturing process, strengths, and weaknesses.To get more news about Steel pipe, you can visit friend-steelpipes.com official website.
Manufacturing Process
Seamless pipes are made from a round steel billet, which is heated, stretched out, and pushed or pulled over a form. The absence of a seam gives them their name. On the other hand, welded pipes are made by cold forming flat strips, sheets, or plates into a round shape and then welding the edges together.
Strength and Durability
Seamless pipes are able to withstand more pressure and load due to the absence of a weak seam. Conversely, welded pipes are believed to withstand 20% less pressure and load compared to seamless pipes.
Length and Size
Seamless pipes are relatively shorter in length due to manufacturing difficulties. Welded pipes can be manufactured in long continuous lengths. Seamless pipes are usually manufactured for a nominal size of 24 inches or less1, while there is no such size restriction on welded pipe production.
Corrosion Resistance
Seamless pipes are less prone to corrosion1. The weld areas of the welded pipes are more prone to corrosion attacks.
Surface Quality
The surface quality of seamless pipes is rough due to the extrusion process1. Welded pipes have a smoother high-quality surface compared to seamless pipes.
Economy
Seamless pipes are costlier due to their complex production process1. Welded pipes are more economic due to their simpler production process.
In conclusion, the choice between seamless and welded pipes depends on the specific application and project requirements. Seamless pipes offer higher strength and better surface finish but at a higher cost. Welded pipes, while more cost-effective, may not be as strong or have as smooth a surface finish.
Manufacturing Process
Seamless pipes are made from a round steel billet, which is heated, stretched out, and pushed or pulled over a form. The absence of a seam gives them their name. On the other hand, welded pipes are made by cold forming flat strips, sheets, or plates into a round shape and then welding the edges together.
Strength and Durability
Seamless pipes are able to withstand more pressure and load due to the absence of a weak seam. Conversely, welded pipes are believed to withstand 20% less pressure and load compared to seamless pipes.
Length and Size
Seamless pipes are relatively shorter in length due to manufacturing difficulties. Welded pipes can be manufactured in long continuous lengths. Seamless pipes are usually manufactured for a nominal size of 24 inches or less1, while there is no such size restriction on welded pipe production.
Corrosion Resistance
Seamless pipes are less prone to corrosion1. The weld areas of the welded pipes are more prone to corrosion attacks.
Surface Quality
The surface quality of seamless pipes is rough due to the extrusion process1. Welded pipes have a smoother high-quality surface compared to seamless pipes.
Economy
Seamless pipes are costlier due to their complex production process1. Welded pipes are more economic due to their simpler production process.
In conclusion, the choice between seamless and welded pipes depends on the specific application and project requirements. Seamless pipes offer higher strength and better surface finish but at a higher cost. Welded pipes, while more cost-effective, may not be as strong or have as smooth a surface finish.