fegenbush & IFRs, Thanks for the reply...the reason we want pwht to be done on site is that we already erected and welded the shell without the nozzles, we've done the erection to cope-up with the schedule but then we are having a huge problem. We are planning to cut again the shell but we need...
As per API 650 requirements ,it is required to PWHT nozzles as the thickness of shell exceeds 1/2 inch and material group IV,my questions:
1 What is the idea behind prohibiting PWHT on tank after erection on tank?
2 Is it required to perform PWHT only in a furnace or we can perform it with...
