Abstract
Due to specific demands for accurate pressure measurements, materials described in ISO 15156 Part 3 exhibit only limited applicability for the production of precision pressure gauges used in sour environments. This holds specifically for limitations given in this standard for cold work hardening of austenitic CrNi steels. Service related laboratory experiments are reported which prove the SSC resistance of bourdon springs and membrane springs of pressure gauges produced from CRAs with materials properties surpassing the limitations of ISO 15156-3. New acceptance criteria should be defined for materials applied in components with wall thicknesses significantly below 1,5 mm.
Subject
Materials,
Piping,
Gauges,
Tubes,
Autoclaves,
Hardness measurements,
Springs,
Nitrogen,
Pressure,
Tensile stress,
Construction,
Elements,
Hardness
© 2008 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).
2008
Association for Materials Protection and Performance (AMPP)
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