Corrosion caused by living organisms such as bacteria, algae, or fungi. It is often associated with the presence of tubercles or slimy organic substances. Often, the bacteria produce localised corrosion in the form of pitting or crevice corrosion.
Affected Materials
Most common materials of construction including carbon and alloy steels, 300 series SS and 400 series SS, aluminum alloys, copper alloys, and some nickel alloys. Titanium appears to be highly resistant.
API 571 was taken as reference.
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