One of the more common modes of degradation in power plant piping has been wall thinning due to erosion-corrosion or flow-accelerated corrosion. Extensive work has been performed to understand flow-accelerated corrosion mechanisms and develop fracture criteria of locally thinned pipes since the tragic events at Surry Unit 2 and Mihama Unit 3. A large number of tests have been performed on carbon steel pipes, elbows, and tees with local wall thinning. In addition, the American Society of Mechanical Engineers Boiler and Pressure Vessel Code provides procedures in Code Case N-597-2 for the evaluation of wall thinning in pipes. This paper provides validation of the evaluation procedures in Code Case N-597-2 by comparing with the field rupture data and pipe burst test data. The allowable wall thinning from the Code Case N-597-2 procedures is shown to maintain adequate margins against rupture.
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e-mail: hasegawa-kunio@jnes.go.jp
e-mail: meshii@u-fukui.ac.jp
e-mail: doug.scarth@kinectrics.com
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June 2011
Research Papers
Assessment of Piping Field Failures and Burst Tests on Carbon Steel Pipes With Local Wall Thinning Using ASME Section XI Code Case N-597-2
Kunio Hasegawa,
e-mail: hasegawa-kunio@jnes.go.jp
Kunio Hasegawa
Japan Nuclear Energy Safety Organization (JNES)
, Toranomon 3-17-1, Minatoku, Tokyo 105-0001, Japan
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Toshiyuki Meshii,
Toshiyuki Meshii
Nuclear Power and Energy Safety Engineering Course,
e-mail: meshii@u-fukui.ac.jp
University of Fukui
, Bunkyo 3-9-1, Fukui 910-8507, Japan
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Douglas A. Scarth
e-mail: doug.scarth@kinectrics.com
Douglas A. Scarth
Kinectrics, Inc.
, 800 Kipling Avenue, Toronto, ON, M8Z 6C4, Canada
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Kunio Hasegawa
Japan Nuclear Energy Safety Organization (JNES)
, Toranomon 3-17-1, Minatoku, Tokyo 105-0001, Japane-mail: hasegawa-kunio@jnes.go.jp
Toshiyuki Meshii
Nuclear Power and Energy Safety Engineering Course,
University of Fukui
, Bunkyo 3-9-1, Fukui 910-8507, Japane-mail: meshii@u-fukui.ac.jp
Douglas A. Scarth
Kinectrics, Inc.
, 800 Kipling Avenue, Toronto, ON, M8Z 6C4, Canadae-mail: doug.scarth@kinectrics.com
J. Pressure Vessel Technol. Jun 2011, 133(3): 031101 (10 pages)
Published Online: April 4, 2011
Article history
Received:
April 5, 2010
Revised:
July 14, 2010
Online:
April 4, 2011
Published:
April 4, 2011
Citation
Hasegawa, K., Meshii, T., and Scarth, D. A. (April 4, 2011). "Assessment of Piping Field Failures and Burst Tests on Carbon Steel Pipes With Local Wall Thinning Using ASME Section XI Code Case N-597-2." ASME. J. Pressure Vessel Technol. June 2011; 133(3): 031101. https://doi.org/10.1115/1.4002498
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