Relationship between Corrosion Potential and Residual Chlorine Concentration of Stainless Steel in Hot Water Environment

Abstract

In order to shorten the E_sp measurement period, the potential of four types of stainless steel pipes in an 80℃ hot water environment containing R-Cl was measured using the R-Cl concentration as a parameter. As a result, an approximate linear equation was obtained that shows the relationship between E_sp and R-Cl concentration. Because the obtained potential data and the slope of the linear approximation equation were close to published and estimated values, it is believed that E_sp can be calculated from the approximate linear equation obtained this time when the usage environment is close to the test conditions used in this study.