Corrosion of 309 stainless steels having 0.07, 0.10, and 0.14 percent carbon as evaluated under simulated fluid flow conditions in high temperature oleum. Electrochemical tests indicated that the corrosion rates of 309 stainless steels, regardless of the carbon content, did not change significantly with the rotating speed under the test conditions examines. The corrosion rate was shown to increase slightly with temperature from 100 - 200 C but, remained less than 12 mpy at temperatures as high as 200 C, and rotational speeds as high as 1,500 rpm. No film destruction or accelerated corrosion was found.
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