I have query on below subject
We have got main colum section of FCC unit wherein base metal is LAS cladded with SS304L.This requirement in specified by UOP Process Licensor
However design temp of Main column is around 55o deg.C
Under this circumstances,I feel SS304L is not suitable at this temp since it will result in formation of chromium carbide at grain boundries.
I feel UOP shall have specifed SS347.
Kindly share your knowledeg
Regards
Sachin
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