In this paper, electrochemical corrosion rate calculated for 3 kinds of steel in fully salt water. Electrochemical corrosion rate of general structural steel (St37), stainless steel 304 (AISI) and 1.7131 (DIN) calculated as weighting, volumetric and commercial in fully salt-water by city power. The test did nearly 30 minutes for each material. Finally, we used these results for selecting appropriate electrode in fully salt water by using fuzzy logic. In this example, the result was AISI 304 is the best selection.
