We are in the process of replacement of existing column having Mono Ethanol Amine Service, and making comparison between use of A 516 Gr. 60 & 70 plates. From the mechanical strength perspective, Gr 70 is a superior material. However, from the corrosion side, Gr. 60 have more advantage, from the failure histories observed with these material. Please provide some more data for making suitable selection for the intended service.
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