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  • Title: An evaluation of microbial growth and corrosion of 316L SS in glycol/seawater mixtures.
    Author: Lee JS, Ray RI, Lowe KL, Jones-Meehan J, Little BJ.
    Journal: Biofouling; 2003 Apr; 19 Suppl():151-60. PubMed ID: 14618716.
    Abstract:
    Glycol/seawater mixtures containing > 50% glycol inhibit corrosion of 316L stainless steel and do not support bacterial growth. The results indicate bacteria are able to use low concentrations of glycol (10%) as a growth medium, but bacterial growth decreased with increasing glycol concentration. Pitting potential, determined by anodic polarization, was used to evaluate susceptibility of 316L SS to corrosion in seawater-contaminated glycol. Mixture containing a minimum concentration of 50% propylene glycol-based coolant inhibited pitting corrosion. A slightly higher minimum concentration (55%) was needed for corrosion protection in ethylene glycol mixtures.
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