JDG galvanized pipe is a common construction material with the characteristics of anti-corrosion and strong durability, which is widely used in house construction, bridges, roads and other fields. However, sometimes when we buy and use JDG galvanized pipe, we will encounter some defective products, which brings trouble to our project.

So, how can we judge whether a JDG galvanized pipe is defective?

First of all, we can initially determine whether a JDG galvanized pipe is defective by its appearance. The surface of a normal JDG galvanized pipe should be flat and smooth, without obvious bumps, wrinkles, scratches and other defects. 　　If these problems exist on the surface of the galvanized pipe, it may be a quality problem during the production process, and it is recommended to contact the supplier in time for return.

jdg pipe

Secondly, we can determine whether the JDG galvanized pipe has defects by observing the galvanized layer. Normal JDG galvanized pipe coating should be uniform and firm, without obvious peeling, bubbles, scars and other phenomena. If the galvanized layer has these problems, it may be that the galvanizing process is unqualified or the quality control is not strict, and it is recommended to replace it in time.

Finally, we can further determine whether the JDG galvanized pipe is defective by testing the physical properties of the pipe. Common physical properties include tensile strength, bending performance, impact resistance and so on. We can test whether the physical properties of the galvanized pipe meet the standard requirements by performing tensile, bending, impact and other experiments on the galvanized pipe. If the galvanized pipe shows abnormality in the test, it may be that the material itself has problems, and it is recommended to replace it in time.