Conventional high chromium ferritic stainless steels have good resistance to corrosion including resistance to stress corrosion cracking. However, poor weldability and restricted ductility limit their use in the process industries. The new, high purity E-BRITE® (XM-27) and 29-4-2 ferritic alloys offer considerably improved fabricability as well as improved corrosion resistance. These steels resist stress corrosion cracking. General corrosion resistance is better than that of standard austenitic stainless steels in many environments and in some cases, equals or betters the resistance of some high nickel alloys. For instance, these ferritic stainless steels offer outstanding resistance to chlorides, alkalis, nitric acid, urea/ ammonium carbamate, amines and organic acids in addition to environments normally handled by stainless steels. The 29-4-2 alloy also provides exceptional resistance to dilute reducing acids. The E-BRITE alloy with its high chromium content provides excellent resistance to high temperature oxidation and sulfidation. Case histories covering the use of the E-BRITE alloy for as long as eight years of service are presented. Potential applications for the newer 29-4-2 alloy are also discussed.

Subject
Water, Stainless alloys, Corrosion rate, Nickel based alloys, Tubes, Industries, Chemical resistance, Commercial alloys, Tubing, Corrosion resistance, Stainless steel, Alloys, Chlorides
© 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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