It has been carried out a test programme to qualify welded super 13%Cr stainless steels for sour service applications. The test programme included weldability trials, weld simulations, mechanical testing and corrosion testing of 13%Cr steels from five different steel mills.

Two of the tested steels have been qualified for use as flowline materials in some parts of new sour service fields. The result shows excellent weldability properties and acceptable corrosion properties. Post weld heat treatment (PWHT) of the welds improved the resistance towards sulphide stress corrosion cracking significantly.

Subject
Test methods, Water, Materials, Modeling, Welding, Corrosion testing, Partial pressures, Base metals, Mechanical failure, Gas metal arc welding, Steel, Pitting, Hardness
© 1997 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).
1997
Association for Materials Protection and Performance (AMPP)
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