The use of the Al-bronze for the offshore oil and gas industry seems to decline. The Al-bronze has many advantages due to availability, cost, fabrication and corrosion resistance. The material can be used as components in valves and equipment.

Based on short time testing, the use of Al-bronze coupled to 22Cr stainless steel is discussed. The testing is carried out in four environments, natural sea water, deaerated sea water, deaerated sea water with H2S and sea water with chlorine. The test results are presented as open circuit potentials and polarization curves. The results show that Al-bronze can be used together with 22Cr duplex stainless steel in deaerated sea water, and to some extent in deaerated sea water with H2S.

Subject
Marine environments, Water, Materials, Corrosion rate, Open circuits, Chlorine, Oxygen, Sulfides, Duplex stainless steel, Galvanic current, Electrochemical potential, Corrosion potential, Electrode potential
Keywords:
Al-Bronze, 22Cr duplex, sea water, chlorine, H2S, galvanic corrosion, electrochemical potentials
© 2004 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).
2004
Association for Materials Protection and Performance (AMPP)
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