Letter 4091

Aluminum corrosion while touching stainless steel 304 

-

I have aluminum touching stainless steel 304.Should I anodize the aluminum or to do other process in order to prevent corrosion.

Danny Krausz  
- Tel Aviv, Israel

March 1, 2009

Hi, Danny. Bare aluminum usually has no corrosion resistance, so you must do something; and anodizing is a good corrosion resistant finish, and sufficiently dielectric to help somewhat in the galvaniz corrosion issue.

Regards,


Ted Mooney, P.E. 
finishing.com
Brick, New Jersey

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