How to verify equipment with incomplete penetration in the longitudinal welds of cylinder welding
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Our company outsourced the welding of the cylinder shells to external contractors. Previously, the company did not have any non-destructive testing equipment, so the welds were not inspected. Now, tests have shown that the longitudinal welds on the cylinder shells are not fully welded; the depth of fusion of the welds is around 1 mm on each side. For double-sided welding, there is a 1 mm unwelded area in the middle of a 3 mm thick cylinder shell. The material used is duplex stainless steel. I’m not sure how to address this issue Our operating conditions are at room temperature, with a maximum internal pressure of 3 bar, which is quite low. Could anyone with experience give me some advice? Thanks
Please give some advice, everyone! Thank you so much
There is under-welding that has been planed off and rewelded – what needs to be checked?