1. in appearance, the seamless steel pipe and welded pipe are distinguished from the welded pipe on the inner wall of the welded pipe, but the welded pipe is seamless.
2. seamless tube pressure is higher, welding pipe is generally in about 10 MPa, now welded pipe has seamless processing.
3. seamless steel pipe is formed in a rolling process. Welded steel pipes need to be rolled and welded, usually with spiral and straight welding. The performance seamless tube is better, and of course the price is higher.
Steel pipe is a hollow strip steel, which is widely used as a conduit for transporting fluids, such as petroleum, natural gas, water, gas and steam. In addition, it is lighter in bending and torsional strength, so it is also widely used in manufacturing mechanical parts and engineering structures. It is also used to produce all kinds of conventional weapons, guns, shells and so on.
The steel pipe seamless steel pipe and welded steel pipe (seamed pipe) two categories. According to the shape of the section, it can be divided into circular pipes and special-shaped pipes. The circular steel tubes are widely used, but there are also some square, rectangular, semi-circular, hexagonal, equilateral triangles, octagonal and other special-shaped steel tubes.
The above is the knowledge that Xiao Bian tells you. We have strict working attitude and skilled working skills. We will ensure that tasks are done accurately and efficiently.