This paper provides a checklist of aspects of welding procedures to highlight issues that require attention to optimise the corrosion properties of welds in a range of CRAs including duplex stainless steels and some commonly used nickel alloys. Success depends on careful handling of the material to be welded, specifying the most suitable weld preparation and filler metal, controlling heat input during welding and adopting protective measures such as shielding with backing gas. Post-weld operations can also be significant in ensuring optimum performance.

Subject
Weld attack, Water, Materials, Corrosion resistant alloys, Composition, Stainless alloys, Nickel based alloys, Molybdenum alloys, Welding, Heat, Pitting, Corrosion resistance, Duplex stainless steel
Keywords:
CRAs, welding, corrosion resistance, shielding, heat input, case histories
© 2003 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).
2003
Association for Materials Protection and Performance (AMPP)
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