One gas transmission company is developing a comprehensive risk assessment model. This risk assessment model will incorporate several sub-models (modules) including a stress corrosion cracking (SCC) module and will be used in conjunction with an ongoing integrity program. An initial SCC prediction model was developed by means of a statistical analysis of an extensive dig database that was compiled prior to 1998. This model was later updated and partially validated with 1999 and 2000 dig data. This paper summarizes the development and validation of the statistical model.

Subject
Coatings, Piping, Manufacturing, Confidence intervals, Asphalt, Pipe to soil potential, Risk assessment, Pipelines, Fusion bonded epoxy coating, Corrosion modeling, Coating types, Soil, Stress corrosion cracking
Keywords:
stress corrosion cracking, statistical modeling, underground gas transmission pipeline
© 2004 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
2004
Association for Materials Protection and Performance (AMPP)
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