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MDMT is greater than the CET

MDMT is greater than the CET

MDMT is greater than the CET

(OP)
Looking over an engineering report, three components to a vessel are given a MDMT of 2. all other components are -20. The CET value is shown as -47 and the equipment MDMT is 2.

the 3 three components are, a bottom shell ring, 30" O.D. nozzle and the repad for the nozzle. all are 1.1250 and SA-516-Gr. 70. The resolution is for a brittle fracture assessment in accordance with API 579-1. I would welcome all assistance. thank you..   

RE: MDMT is greater than the CET

In addition to MAT, which can be the minimum design metal temperature using ASME Section VIII, Div 1 design basis, what exactly are you trying to do under API/ASME FFS-1 brittle fracture assessment? Are you trying to re-rate this vessel?

RE: MDMT is greater than the CET

ISDQAQC (Specifier/Regulator)

HAVE YOU REVIEW THE FOLOWING:


API 579-2/ASME FFS-2 2009 Fitness-For-Service Example Problem Manual
ASSESSMENT OF EXISTING EQUIPMENT FOR BRITTLE FRACTURE EXAMPLE PROBLEMS
page 3-1 3-21
3.1 Example Problem 1 ......................................................................................................... 3-1
3.2 Example Problem 2 ......................................................................................................... 3-1
3.3 Example Problem 3 ......................................................................................................... 3-1
3.4 Example Problem 4 ......................................................................................................... 3-2
3.5 Example Problem 5 ......................................................................................................... 3-3
3.6 Example Problem 6 ......................................................................................................... 3-4
3.7 Example Problem 7 ......................................................................................................... 3-6
3.8 Example Problem 8 ......................................................................................................... 3-8
3.9 Example Problem 9 ....................................................................................................... 3-10
3.10 Example Problem 10 ..................................................................................................... 3-11
  

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