Abstract
The pitting potential for stainless steels and typical corrosion resistant alloys was determined in deaerated 0.1M NaCl solution at 280°C using an external reference electrode. The 25Cr-5Ni-2Mo and Type 316 showed the highest pitting potential in the series of the alloys. Molybdenum seems to improve pitting resistance at high temperature as well as ambient temperature. It was found that the relative pitting resistance of these alloys at 280°C was almost similar to that of 31°C.
