The materials used to construct feedwater heaters for boiling water reactor (BWR) plants through 1964 were primarily copper and nickel base alloy heater tubing. In keeping with the standard practice of utility companies, the condensed water was deaerated and the oxygen content in the feedwater was maintained as low as possible, preferably <10 ppb. Only limited previous data exist for predicting corrosion product input to high pH, low oxygen fossil plant feedwater and essentially no previous data are available for predicting input to BWR-type operation of neutral pH and low oxygen feedwater. A program was instituted in 1965 to study (1) the corrosion of several common copper-bearing feedwater heater tubing materials, and (2) the amount of corrosion products released to the feedwater by each material under BWR feedwater conditions of flowing, neutral pH water in a temperature range from 100 to 400 F. The results of these corrosion evaluations of copper-bearing feed- water materials are presented in this paper.

Subject
Materials, Admiralty brass, Metal coupons, Copper alloys, Corrosion products, Constants, Feedwater, Metals, Weight loss, Copper nickel alloys, Oxygen, Monel alloys, Copper
© 1968 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).
1968
Association for Materials Protection and Performance (AMPP)
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