Compared with other steels, JIS G3444 STK540 seamless steel pipe has its excellent characteristics. It is lighter in weight and is an economical cross-section steel. JIS G3444 STK540 seamless steel pipe is more and more widely used.
Fake and inferior EN10217-2 P235GH steel pipes often have pitting on the surface. The pitted surface is caused by the serious wear of the rolling groove, which causes the irregular unevenness of the surface of the EN10217-2 P235GH steel pipe.
The strength of spiral welded pipe in steel pipe is generally higher than that of straight welded pipe. It can be used to produce larger diameter welded pipe with narrow blank, and it can also be used to produce different diameter welded pipe with the sam
