Martensitic stainless steels are used in centrifugal compressors for sour gas service. This paper investigates the stress limitations of CA6NM for sulfide stress cracking in low pH brines of varying chloride concentrations. The results are compared to an actual production environment through simulated environment testing of compressor impeller materials.

Subject
Test methods, Materials, Yield stress, Sour environments, Corrosion cracking, Chloride solutions, Acidity, Stress, Sulfide stress cracking, Chlorides, Cracks, Yield strength, Martensitic steel
Keywords:
sulfide stress cracking, impeller, compressor, chlorides, CA6NM, hydrogen sulfide, martensitic stainless steel
© 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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