The corrosion rate of carbon steel in 50 to 99% sulfuric acid is controlled by the rate at which the ferrous sulfate corrosion product diffuses. The rate at which ferrous sulfate diffuses in sulfuric acid and therefore, the corrosion rate of steel has been calculated for pipeline flow. The final expression for the corrosion rate in mm/yr of carbon steel pipelines is CR = 1.42 x 10-4 T0.654 γ0.913 ρ1.567 μ-1.221 d-0.087 (w - 0.01). Corrosion rates calculated from this expression are in agreement with reported corrosion rates from the literature.

Subject
Acids, Piping, Correlation, Viscosity, Corrosion rate, Sulfuric acid, Turbulent flow, Sulfates, Solubility, Density, Corrosion products, Mass transfer, Steel
© 1984 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).
1984
Association for Materials Protection and Performance (AMPP)
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