UNS S34565 stainless steel can now be laser welded to produce thin walled (0.35 - 0.40mm) tubing. Corrosion tests have been carried out on tube - tube plate assemblies in simulated MSF desalination plant environments of deaerated sea water at 90°C with oxygen levels of 65, 150 and 750 ppb. Some comparative tests with UNS S31603, S31803 and S32760 were also carried out. Results showed excellent resistance of S34565 to stress corrosion cracking, crevice and pitting corrosion, highlighting its potential as a material for evaporator tubing in MSF plants.

Subject
Weld attack, Test methods, Marine environments, Water, Materials, Tubes, Crevices, Crevice corrosion, Heat, Lasers, Oxygen, Stainless steel, Ferrite
Keywords:
stainless steel, laser welding, sea water, MSF desalination
© 2001 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).
2001
Association for Materials Protection and Performance (AMPP)
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