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  1. BenStewart

    Part 10 API 579, Omega Assessment, Triaxiality Parameter and Minimum vs. Average Properties

    As part of a life extension study I'm completing a creep assessment in accordance with Part 10 of API 579 and following the Omega using isochronous curve method. The material is 5Cr-0.5Mo. I have a few questions on two points if anybody is able to help. Thanks. 1. Triaxiality Parameter I...
  2. BenStewart

    Nozzle Subject to Piping Loads - Allowable Stresses

    All, First post so apologies for any violations. I have an ASME Sec. VIII Div. 1 pressure vessel for an FPSO application that is currently being designed by a subcontractor and an issue regarding the assessment of nozzle loads has come up. The project pipe stress group has calculated revised...

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