Corrosion of stainless steel pipes
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The pipeline through which methyl methacrate flows is made of 304 material, and there are always small, colored metal particles in the fluid; it is suspected that the pipeline is corroded. How can this be determined?
This should be possible to test the wall thickness using a wall thickness ultrasonic detector, right?
Test the composition of metal particles. . Check the thickness of the pipe. . Search for information to determine whether this material selection is incorrect. . .
I’ve encountered cases before where alkali pipes were corroded; before the alkali evaporated and entered the tank, there was a filter containing many small black metal particles. However, the MMA particles in this case don’t look quite the same, and it’s unclear whether it’s stainless steel that has been corroded.
The material used might not be appropriate; it could be the previous 304 tubes, and due to annealing issues, sanding inside the holes led to intergranular corrosion. It might be the problem pipe