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Characterization and Structural Integrity Tests of Ex-Service Steam Generator Tubes

[+] Author Affiliations
Sandra Pagan

Ontario Power Generation, ON, Canada

Xinjian Duan, Michael J. Kozluk

Atomic Energy of Canada, Ltd., ON, Canada

Brian Mills, Guylaine Goszczynski

Kinectrics Inc., ON, Canada

Paper No. ICONE16-48505, pp. 627-632; 6 pages
  • 16th International Conference on Nuclear Engineering
  • Volume 1: Plant Operations, Maintenance, Installations and Life Cycle; Component Reliability and Materials Issues; Advanced Applications of Nuclear Technology; Codes, Standards, Licensing and Regulatory Issues
  • Orlando, Florida, USA, May 11–15, 2008
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 0-7918-4814-0 | eISBN: 0-7918-3820-X
  • Copyright © 2008 by ASME


Canadian nuclear standard CSA N285.4 requires the periodic metallurgical examination of removed ex-service steam generator tubes. This paper describes the practices used for the characterization and structural integrity tests of ex-service steam generator tubes at Ontario Power Generation (OPG). It shows that there is no degradation in mechanical properties of Monel 400 tubes after 7 to 18 Effective Full Power Years (EFPY) of operation and Incoloy 800 tubes after more than 10 EFPY of operation.

Copyright © 2008 by ASME
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