Could you please be more specific regarding the Al alloy you are referring to and any other specifics such as the application, service conditions, etc...

I cannot, nor can anyone else in here answer your query without you posting the above mentioned specific information as well as any other info you may have available to post here regarding your query. ;) Btw, I am nobody's "master." So please don't refer to me that way because I would rather be considered your friend - CAPECHE? ;)

Respectfully,
Henry