What causes MIC? Microbiologically influenced corrosion is
caused by specific genera of bacteria which feed on
nutrients and other elements found in waters and soils. Sea
water is a primary source of sulphate reducing bacteria
(SRB). The biological activities modify the local chemistry
(acid-producing) and render it more corrosive to the metals.
For example, iron-oxidizing bacteria can perforate a 5mm
thick 316 stainless steel tank in just over a month!