Field tests and laboratory studies of refinery process streams are presented. The effects of temperature, velocity and physical state were studied with respect to alloy selection for corrosion resistant service. The amount of molybdenum in the austenitic stainless steel alloys is the dominant factor in conferring corrosion resistance. The Naphthenic Acid Corrosion Index (NACI) is useful in assessing the severity of corrosion under a variety of circumstances.

Subject
Acids, Films, Molybdenum, Corrosion resistant alloys, Stainless alloys, Naphthenic acid, Acid concentration, Corrosion rate, Molybdenum alloys, Acid attack, Sulfidation, Corrosion resistance, Oil
Keywords:
Naphthenic Acid, Crude Oil, Laboratory Tests, Field Tests, Molybdenum-bearing austenitic stainless steels
© 1995 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).
1995
Association for Materials Protection and Performance (AMPP)
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