The chloride/sulfide cracking performance of a duplex stainless steel, FERRALIUM alloy 255, and a nickel-based alloy, HASTELLOY alloy G, has been measured in four environments with varying H2S, CO2, and acetic acid contents in the temperature range of 25 to 200°C (78 to 400°F). The nickel-base alloy exhibited excellent resistance to cracking in these environments. The annealed duplex stainless steel exhibited resistance to cracking in the lower H2S containing environments. The susceptibility to cracking of the austenite and ferrite phases in the duplex stainless steel is discussed.

Subject
Materials, Stainless alloys, Sodium chloride, Stress cracking, Cracking resistance, Commercial alloys, C ring stress corrosion testing, Acetic acid, Duplex stainless steel, Caustic stress corrosion cracking, Alloys, Stress corrosion cracking, Chloride stress corrosion cracking
© 1981 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).
1981
Association for Materials Protection and Performance (AMPP)
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