I probably was not very clear and I agree with what you've said. Using pipe as a shell, we consider UG-27 and not UG-45. My main point was that when using standard pipe for a shell under UG-27, applicable tolerances must be considered and compared to the minimum calculated thickness. The new...
Good insight, jte. We sometimes design small vessel shells using standard pipe sizes. After determining the required minimum thicknesses per UG-27, we subtract the 12.5% manufacturing tolerance and corrosion allowance from the nominal thickness of the selected pipe and compare that to the UG-27...