Research and field experience with ethanol stress corrosion cracking (eSCC) continues to involve a better understanding of the implication of this phenomenon in fuel ethanol operations and guidelines for its mitigation. This paper highlights the evolution of eSCC from a “recently recognized phenomenon” through recent laboratory findings that have identified the causal relationships and key parameters and the results of field failures that define the relationships between laboratory testing and field serviceability. Findings presented in the recently updated API 939D (research investigations) and API 939E (guidelines) are highlighted focusing on new information that can potentially minimize failures in the distribution system that includes transportation, pipelines, terminals, and fuel blending facilities.

Subject
Environmental cracking, Test methods, Water, Steel equipment, Pipelines, Stress cracking, Fuel ethanol, Tensile stress, Steel, Equipment, Ethanol, Stress corrosion cracking, Residual stress
Keywords:
ethanol SCC, stress corrosion cracking, fuel ethanol, pipelines, terminals, guidelines
© 2012 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).
2012
Association for Materials Protection and Performance (AMPP)
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