How to identify shoddy DIN17175 ST45.8 steel pipe

The DIN17175 ST45.8 steel pipe users are usually particular about quality. However, there are also a lot of shoddy DIN17175 ST45.8 steel pipe on the market. So it is better for users to choose reputable ST45.8 steel pipe suppliers. Meanwhile, it is also necessary to master some methods to identify shoddy DIN17175 ST45.8 steel pipe.

First, shoddy DIN17175 ST45.8 steel pipes are easily scratched. The reason is that the equipment of the shoddy DIN17175 ST45.8 steel pipe manufacturers is simple and crude, and it is prone to burr and scratch the surface of the steel products. Deep scraping reduces the strength of the ST45.8 steel pipes.

Second, the shoddy DIN17175 ST45.8 steel pipe has no metallic luster. Its light is red or similar to the raw iron. The reason is that the temperature of the shoddy pipe rolling is not standard. The temperature of the steel is by visual inspection, so it can not be rolled according to the specified austenite area, and the properties of the steel can not reach the standard naturally.

Besides, shoddy DIN17175 ST45.8 steel pipe material contains more impurities, the density of steel is small, and the size is very bad, so in the case of no vernier caliper, it can be weighed and checked.

BBN steel has been engaged in DIN17175 ST45.8 steel pipe exporting for more than 15 years. The pipe quality are highly spoken. BBN steel is not only pipe supplier, but also built relationship with clients, and actively give answers to clients about questions of raw steel materials.