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ABSTRACTThis paper summarizes the methodology, procedure, and results of a fitness for service assessment performed for one CANDU outlet feeder in accordance with the COG FFSG Appendix E (Evaluation of Thinned Regions) Level 3. A wall thickness of 80% of the pressure-based thickness of the corresponding straight pipe is conservatively considered uniformly distributed along both … Continue reading FITNESS FOR SERVICE EVALUATION OF CLASS 1 PIPING COMPONENT

ABSTRACT Carbon Steel piping systems experience wall thinning due to theflow accelerated corrosion phenomenon. A review of theinspection reports of a typical nuclear pipe indicated that thepredicted minimum wall thickness at the next scheduled outagemay not meet the required minimum acceptable wall thicknessthat meets the ASME SEC III NB-3600 criteria for ServiceLevels A, B, C … Continue reading ELASTIC-PLASTIC FFS ASSESSMENT OF CLASS 1 NUCLEAR PIPE ELBOW