I am reviewing an older evaluation

[NDEL3]

I am reviewing an older evaluation report from a pressure vessel and the author stated " The maximum allowable design stress by the Code is limited to two-thirds of the minimum specified yield strength." I have always used the tables in Section II part D but want to know where in the Code is this found? Code = ASME BPVC

 

[pdiculous963]

Take a look at Mandatory Appendix 1 of Section II Part D. It outlines the allowable stress basis of the Code.

 

[NDEL3]

Thank you very much. That was very helpful.

 

[BenStewart]

Note...

If the equipment was designed to ASME VIII-1 and pre-99a then the allowable stress values in the current version of II-D may not apply (unless you go through API 510 and meet their criteria...). The UTS factor currently is 3.5 but previously was 4 and 5 before that. Depending on your material and design temperature, for VIII-1 designs, it is often the UTS that governs the allowable stress.