Large (5" thk) ASME Sect. I Header section (PART). One end of header has TEE on the end, so temporary flat heads were welded-in for hydro testing in shop. After successful hydro test, the temporary flat heads were removed and ID surfaces where temporary weld was removed were examined by MT. A...
Just wondered if this was acceptable: Can you re-rate a vessel MDMT by performance of PWHT of the vessel in order to get temperature reduction allowed by UCS-66.2? If a vessel was not built with PWHT and therefore welding procedures used to fabricate the vessel did not include PWHT, can you...
What would be the Year Built for a large Economizer Module if the fabrication was completed in December 2012, but the final hydrostatic test did not occur till January 2013? All the fabrication (4 to 6 months of work) was completed in 2012, but final inspection (hydrostatic test & stamping)...
Is is prohibited to install a flush patch across a girth seam?
Example: vessel is 10ft dia. carbon steel and has had multiple repairs at same area in circumferential girth seam weld. Repair company would like to install a 2ft x 2ft flush patch in shell at area of prior multiple repairs. Can...
