Corrosion of 18 Cr-. 25 Cr- and 30 Cr- stainless steel in the mist of 10%, H2SO4, and the influence of small amounts of Ni, Mo and Ni-Mo on the corrosion of them were tested. We found that the higher the Cr content in steel is the better the resistivity; the co-existerce of Ni and Mo produces good effects on them.
