The Difference Between Steel Pipe And Welded Pipe

1. In appearance, the difference between seamless steel pipes and welded steel pipes is that the welded pipes have welding bars on the inner wall, while the seamless ones do not.
2. The pressure of seamless pipes is higher, and that of welded pipes is generally about 10 MPa. Nowadays, welded pipes are made seamless.
3. Seamless steel pipes are formed in one step during rolling. Welded steel pipes need to be rolled and then welded, generally with spiral welding and direct welding. The performance of seamless pipes is better, but of course the price is higher.
Steel pipe is a hollow long steel material, which is widely used as a pipeline for transporting fluids, such as oil, natural gas, water, coal gas, steam, etc. In addition, it is lighter in weight when bending and torsional strength are the same, so it is also widely used. Used to manufacture mechanical parts and engineering structures. It is also commonly used to produce various conventional weapons, gun barrels, artillery shells, etc.