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What are the 7 differences between seamless pipe and welded pipe



1. Different processes


Seamless tube is made of steel billet or solid tube embryo perforation, hot rolling or cold rolling processing. Welded pipe is made by bending and welding steel plates or strips.


2. Different appearance


Seamless steel pipe has no seams on the surface. The surface of the welded pipe is usually welded.


3. Different wall thickness


The precision of seamless steel pipe is low and the wall thickness is relatively thick. Welded tubes are of high precision and usually have thin walls.


4. Different raw materials


Seamless steel pipe is made of billet or solid tube embryo. Welded pipes use steel plates or strips.


5. Different performance


In corrosion resistance, pressure, high temperature resistance and other properties, seamless steel pipe will be better than welded pipe.


6. Different prices


Seamless steel pipe is more expensive than welded pipe, because the production process of seamless steel pipe is more complex, its cost is higher.


7. Different functions


Seamless steel pipe is generally used for conveying fluids in special environments such as high pressure and high temperature resistance. Welded pipe is usually used as a low pressure fluid transfer line.




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Zhishang Steel Co., Ltd

ABOUT USOverviewThe company mainly deals in color-coated, galvanized, stainless steel pipes, stainless steel coils, stainless steel plates of various materials; hot-rolled series of rebar, medium and heavy plates, coils, I-beams, angle steels, channel steels, H-beams and other steel products and deep processing Service. (The company’s annual invent···

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