The results of an investigation of the corrosion behavior of various T-bolt alloys, used in buried water pipes, are summarized. Three types of soils ranging from mildly to very corrosive were used in testing the T-bolts. Corrosion measurements on Cor-Ten®, a wrought steel alloy, and several cast iron T-bolts are compared based on weight loss and galvanic currents. The ranking of the various T-bolts according to their corrosion resistance was not the same for all three soils. Cor-Ten® T-bolts performed relatively well in some cases. The T-bolts that had in general the lower corrosion rates under all the conditions tested were the ductile T-bolts made by the permanent mold or sand cast technique.

Subject
Test methods, Water, Piping, Sand, Corrosion rate, Rods, Current measurements, Graphite, Steel, Galvanic current, Alloys, Galvanic corrosion, Soil
© 1989 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).
1989
Association for Materials Protection and Performance (AMPP)
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