Umbilical functionality is critical to proper operation of subsea production systems, and for this reason it is important to properly select materials and corrosion protection options for this service. In this regard, specimens of a chromium-manganese-nickel duplex stainless steel (UNS S32001) in the normal, welded, and crevice conditions were exposed freely corroding and cathodically polarized for up to 413 days in natural sea water environments that were intended to simulate umbilical service. The results of these exposures are presented, and projections are made regarding appropriateness of this material for umbilical service.

Subject
Marine environments, Water, Materials, Cathodic protection, Tubes, Crevices, Penetration, Plastics, Heat, Pitting, Corrosion protection, Corrosion potential, Electrode potential
Keywords:
umbilical, duplex stainless steel, cathodic protection, deep sea water, deep sea mud
© 2002 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).
2002
Association for Materials Protection and Performance (AMPP)
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