THE EFFECT OF SALTS ON STEELS AND PROTECTIVE COATINGS

Salt contamination of steel surfaces is frequently encountered during construction and commissioning of power plant. NNC has attempted to de fine the maximum allowable limits depending on the substrate and subse quent use. In particular, two research programmes are discussed here. One, the incidence of stress corrosion cracking and intergranular atta ck of stainless steel exposed to a moist air. The second, a 6 1/2-year exposure to the atmospheric environment of alkyd paints applied to pr e-contaminated carbon steel.