Environmental Characteristics Controlling the Soil Corrosion of Ferrous Piping

JD Palmer

doi:10.1520/STP19706S

SYMPOSIA PAPER Published: 01 January 1989

STP19706S

Environmental Characteristics Controlling the Soil Corrosion of Ferrous Piping

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The characteristics of soils controlling the external corrosion of ferrous piping materials are examined with particular reference to an American Water Works Association (AWWA) rating formula. The relationship and reliability of the following characteristics as corrosion predictors are examined: resistivity, pH, redox potential sulfides, moisture, and chlorides. Metallurgical test results illustrating the mechanism of attack on cast iron and ductile iron are presented and the apparently different performance of the two materials is reviewed. Mitigative and preventive measures are mentioned and the organization of a corrosion control program outlined.

Author Information

Palmer, JD

Corrosion Control Engineering, Ltd., London, Ontario, Canada

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Details

Developed by Committee: G01

Pages: 5–17

DOI: 10.1520/STP19706S

ISBN-EB: 978-0-8031-5076-8

ISBN-13: 978-0-8031-1189-9

Environmental Characteristics Controlling the Soil Corrosion of Ferrous Piping

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