How to identify fake and inferior non-standard straight seam welded steel pipes

the quality of non-standard straight seam welded steel pipes is not only related to their service life but also to their subsequent use efficiency. so when we buy non-standard straight seam welded steel pipes, how can we buy high-quality non-standard straight seam welded steel pipes? what about straight seam welded steel pipes? so today we will talk about how to identify fake and inferior non-standard straight seam welded steel pipes so that everyone can learn about it.

first of all, we can distinguish the quality of non-standard straight seam welded steel pipes by the appearance of non-standard straight seam welded steel pipes. if the surface of non-standard straight seam welded steel pipes is pitted and not smooth, then the quality of such steel pipes is relatively poor. when purchasing, you should also pay attention to whether there are scratches or cracks on the surface of the non-standard straight seam welded steel pipe. if this is the case, the steel pipe must be a low-quality product. the fake steel pipes have no metallic luster, and their color will be light red or similar to pig iron. secondly, we can also look at the cross-section of non-standard straight seam welded steel pipes. if the cross-section is uneven, it means inferior non-standard straight seam welded steel pipes.