ASME B31.8 Chap IX for sour service asks for compliance to NACE MR0175, presumably because following the rules for hardness etc. in that standard will keep sour service lines safe. Note however that Section 833 of the Code recognizes the 'stress range' approach as acceptable. This approach is based on a 'shakedown to an elastic condition' which implies some initial plastic yielding and NACE MR0175 is only valid for elastic stresses. So it would seem that the Code violates the limitations of MR0175. Can anyone comment on this conflict?
Eng-Tips is the largest engineering community on the Internet
Intelligent Work Forums for Engineering Professionals
-
Congratulations waross on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!
B31.8 sour service stress range
- Thread starter pstress
- Start date
Similar threads
- Locked
- Question
- Question