What's the Difference between Seamless Pipe and Welded Pipe?

1. Different process

The seamless pipe is made by perforating the billet or solid tube embryo, and then undergoing hot rolling or cold rolling. Welded pipes are made by bending and welding steel plates or strips.

2. Different appearance

There are no seams on the surface of seamless steel pipes. There are generally welded seams on the surface of the welded pipe.

3. Different raw materials

Seamless steel pipes use billets or solid tube blanks. Welded pipes use steel plates or strips.

4. Different functions

Seamless steel pipes are generally used as pipelines for conveying fluids in special environments such as high pressure resistance and high temperature resistance. Welded pipes are generally used as low-pressure fluid delivery pipelines.