Stainless steels in soils

Stainless steels in soil can only be attacked by pitting corrosion if the pitting potential is exceeded (see Fig. 2-16). Contact with nonalloyed steel affords considerable cathodic protection at f/jj < 0.2 V. Copper materials are also very resistant and only suffer corrosion in very acid or polluted soils. Details of the behavior of these materials can be found in Refs. 3 and 14. 

Gerhold, W. F., Escalante, E., and Sanderson, B. T., "The Corrosion Behavior of Selected Stainless Steels in Soil Environments, NBSIR 81-2228(NBS), American Iron and Steel Institute, Washington, DC, February 1981. 

Coating and cathodic protection should be considered for stainless steel in soil and water. Stainless steel may be used in most atmospheric exposures and may also be used as hardware for connection to steel. Stainless steel should not be used for complex structures with overlapping bolted connections in soil or fluid exposures. Bolted connections of this type in soil or fluid exposures can experience very rapid crevice corrosion. 

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See also in sourсe #XX -- [ ]

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