Equipment welding issues
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The equipment used for sulfuric acid An solutions is made of 316L material; there are leaks in the piping system. After welding to repair these leaks, cracks appear – the cracks follow the path of the welds. The pipes can be replaced, but replacing the equipment comes at a high cost. I’m seeking advice from experts on why this happens and how to prevent cracks from appearing after welding repairs
Cracking caused by uneven stress. It would be best to send a video for discussion and as a reference.
The material may be corroded; it is recommended to check it
Wherever it’s welded, there it will crack. I agree with your view
The corrosion of equipment by sulfuric acid AN is a type of intergranular corrosion. After the equipment has been in use for some time, significant changes occur in its material composition; these changes are due to variations in the concentration of various elements within the material. Following welding, the stress generated as a result of welding stresses causes tension in the material’s crystals. As a result, stress appears along the edges of the welds, which in turn leads to cracks and fissures