3.4 Corrosion of SS400 carbon steel and SUS316L stainless steel by Prolixibacter strains.
Two nitrate-reducing strains, P. denitrificansMIC1-1T and Prolixibacter sp. SD074, and one nitrate-non-reducing strain, Prolixibacter sp. NT017, were used to evaluate the corroding activities on SS400 carbon steel and SUS316L stainless steel (Table S5) under anaerobic conditions. Both nitrate-reducing strains corroded SS400 carbon steel more intensively than Fe0 (Table 4). However, these two strains did not corrode SUS316L stainless steel, indicating that they could not accept electrons through the passive film formed on the surface of stainless steel. As expected, the Fe0-non-corrodingProlixibacter sp. NT017 corroded neither SS400 carbon steel nor SUS316L stainless steel.