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Views: 17 Author: Site Editor Publish Time: 2023-12-06 Origin: Site
Stainless steel welded pipes are made by welding a rolled sheet of stainless steel into a tube using a welding process. The welding can be done using various methods, such as TIG, MIG, or electric resistance welding. The welded joint is then annealed to restore the material's corrosion resistance and strength.
On the other hand, stainless steel seamless pipes are made by piercing a solid stainless steel billet with a mandrel to create a hollow tube. The tube is then processed through a series of rollers to reduce its diameter and wall thickness to the desired dimensions. Because there is no welding involved in the production process, seamless pipes are generally considered to have better mechanical properties, such as higher strength and better corrosion resistance.
In terms of applications, welded pipes are often used for lower-pressure applications, such as in the food and beverage industry or for plumbing, while seamless pipes are often used in high-pressure applications, such as in the oil and gas industry or for chemical processing. Seamless pipes are also generally more expensive than welded pipes due to the more complex production process.
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