Saturday, November 28, 2009

Re: [MW:3763] Material selection

In my opinion low carbon content of SS304L will help in avoiding carbide precipitation.
 
best regards.
 
Sunil Mathur

On Sat, Nov 28, 2009 at 7:47 PM, sachin sankhe <sachin.sankhe@rediffmail.com> wrote:
Dear Freinds,
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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