How to distinguish steel pipe quality

Steel pipe is a kind of common construction material in our daily life such as welded steel pipe. Therefore, manufacturers who expertise in steel pipe production are various. In these factories, their production ability is different, so the steel pipe quality is also quite uneven. Some shoddy manufacturers who produce poor quality steel pipe will mislead the decision of customers, which is shameful but can not be avoided. Then, how to distinguish the quality of steel tube and square tube? How to choose suitable products with reasonable price? We should learn some basic knowledge about these question.

The pipe component distribution is very uniform for high quality steel pipe and its surface is smooth and neat such as cold rolled steel pipe. However, the steel pipe whose quality is inferior has obvious folding mark on the surface, which can form a variety of folding line. The folding mark will affect the strength of steel pipe seriously; it will become a potential safety issue afterwards. For inferior steel tube, there are a lot of impurities in component, resulting in impure raw materials, which can cause uneven material easily. This kind of poor quality steel pipe can not be applied in actual construction project.

Good quality steel pipe such as hot dipped galvanized steel pipe has lots of excellent performances. For example, premium quality steel pipe has very high strength which can not be scratched easily and light scratching is not obvious. However, inferior steel pipe produced by a set of simple equipment will easily has burr that will lower steel pipe strength. Steel pipe with metallic luster ranks high class in steel pipe market, but inferior steel pipe more or less has rugged dot which is caused by simple and crude production equipment. We should choose the steel pipe with smooth surface without obvious burr.

The above basic points, generally can be used to judge the quality of steel pipe. For all the steel pipe manufacturers, each manufacturer has their own steel pipe price in terms of their types or specifications. In the fluctuate steel pipe market, choosing desirable products with good value is not an easy job. It is a time as well as energy commitment. Besides, we need to mater some related information in advance. Therefore, learning some judgment method of selecting is very important. If you have other questions about the select approaches, hope you can leave your messages below.