Spiral welded pipes (ssaw) are stacked outdoors, and most of them are buried underground when in use, so they are easy to corrode and rust. In order to ensure the smooth flow of the pipeline, the spiral welded pipe must have strong corrosion resistance. Once the pipeline is corroded, it will cause oil and gas leakage, which will not only interrupt the transportation, but also pollute the environment, and may even cause fire and harm. Spiral welded pipe manufacturers will tell you about the factors that cause corrosion of spiral welded pipes:
 
The reasons for the rust of the spiral welded pipe:

1. Corrosion failure. 

When the pipeline is erected, it is necessary to do a good job of anti-corrosion work or directly use anti-corrosion spiral steel pipes. The reason for the corrosion of the pipeline is that the anti-corrosion layer of the pipeline has been damaged. Once the anti-corrosion layer and the surface of the pipeline are separated, it will naturally cause anti-corrosion failure. This is also the ladder type. We should choose anti-corrosion spiral welded pipe when purchasing spiral welded pipe.

2. The influence of external conditions. 

The main thing is to first look at the characteristics and temperature of the medium around the pipeline, and whether the medium around the pipeline is corrosive. Because the corrosiveness of the medium is closely related to the various microorganisms contained in the soil. And if it is a long-distance pipeline, the nature of the soil environment is more complicated. In addition, the temperature of the environment where the pipeline is located will also affect the corrosion of the spiral welded pipe. If the temperature is higher, the corrosion rate will be accelerated, while the temperature is lower, the corrosion rate will be slowed down.