thread177-29735
I am working on an old vessel that is constructed of A-212-B. Thickness is 2.35 inches. A-212-B was replaced by A-515. In regard to low temperature operation, the exemption curve UCS-66 lists A-515 under Curve B with no mention of whether or not it is normalized. Spec A-515...
I am evaluating a pressure vessel that operates at very low temperatures. It was built in 1982 and has been in what should be non corrosive service since that time. The original thickness was 1 inch. The latest thickness values range from .805 to .808 on the entire vessel. The thickness...
I recently performed a rerate of a 55 year old vessel. Based on inspection data there was some general thinning in the feed area, and everything else was in good order. The inspection report mentioned a goove adjacent to a nozzle that was described as “0.080 deep and about 1.5 inches long”...
