Application and quality inspection of straight seam welded steel pipe

With the development of modern industry, the manufacture and application of steel pipe such as erw round steel tube become more and more advanced and various steel pipes are very popular among customers. As an economic construction material, it can be used in machinery,manufacturing,chemical industry,pipeline transportation and other fields. The appearance of the straight seam welded steel pipe makes the steel tube more efficient and the pipe type is enriched. Do you know more details about straight seam welded steel pipe? Now, we can discuss this kind of steel pipe so as to use it correctly.

Property introduction
According to the classification of welding shape, it can be divided into round steel pipe and square steel pipe.straight seam welded steel pipe refers to the steel pipe which is connected by welding technology and there exists straight line on the steel pipe surface. Under the condition of welding technology, steel pipe manufacturers can produce welding square pipe,round tube and galvanized square steel pipe. Compared with spiral welded tube, straight seam welding process is simple.high efficiency,low input cost and fast development space, so there are a lot of straight seam welded pipes in the steel pipe market. Because of its excellent properties, this kind of steel pipe is popular among customers.
Application introduction
Straight seam welded steel pipe is mainly used in water engineering and petrochemical industry in our daily life. Besides, we can often see this pipe in chemical industry, urban construction and agricultural irrigation. Of course, different areas have different requirements for steel pipes. As customers who want to guarantee the safety of projects, we need to get abundant pipe information and know how to use pipes correctly. Only knowing how to distinguish steel pipes and how to apply pipes can we benefit from pipe performances.

The quality inspection
First of all, straight seam welded steel pipe should conform to the stipulation of the national standard. For example, the pipe length is typically between 4~10 meters. Thick wall size is 2~6 mm and the nominal diameter is 6~150 mm. If the parameter is line with above standards, steel pipe manufacturers can hit steel pipe market. Secondly, when inspecting the quality of steel tube, the surface of the steel pipe should be smooth without cracks, layering,folding and other defects. Finally, in the case of visual discrimination, the steel pipe should be examined more professionally such as mechanical properties and flattening experiments. Any doubts?