al6xn vs hastelloy c276

[sammyty]

Does anyone have a chart or quick reference on the corrosion resistance between al6xn and hastelloy c-276.? in a citric acid environment to be specific

 

[Unotec]

Why not use 316SS?

<<A good friend will bail you out of jail, but a true friend
will be sitting beside you saying ” Damn that was fun!” - Unknown>>

 

[sammyty]

I wish....not an option

 

[Unotec]

Best I can do for you is:

http://www.coleparmer.com/techinfo/chemcomp.asp

but you probably need tables at different concentrations and temperatures, which this will not give you

<<A good friend will bail you out of jail, but a true friend
will be sitting beside you saying ” Damn that was fun!” - Unknown>>

 

[EdStainless]

Outokumpu shows a 6%Mo alloy suitable clear to 70% boiling.
Unless you have a lot of Cl contamination 6XN should work fine.

= = = = = = = = = = = = = = = = = = = =
Plymouth Tube

 

[strider6]

I've found these data for C276 on Nace Corsur Database:
C276 citric acid conc 5–60% temp °F 25–225 corrosion rate <2mpy

this article on SS can be useful:
Selection of stainless steels for handling citric acid (C3H4OH(COOH)3)

http://www.bssa.org.uk/topics.php?article=28

S

Corrosion Prevention & Corrosion Control