SST and Aluminum galvanic reaction? 2

[slickstyles5]

Hi,
I have a sheet metal structure of 1/8" thick aluminum sheet and I want to bolt another sheet metal plate 1/8" thk. sst 304 to it. Will there be a galvanic reaction here in normal factory conditions? (No wetness or rain)

 

[Ron]

Not likely.

 

[patprimmer]

I don't see a problem from galvanic corrosion, however you have just described a bi metalic strip. It may bend with temperature change.

Regards
Pat
See FAQ731-376 for tips on use of eng-tips by professional engineers &

http://eng-tips.com/market.cfm

for site rules

 

[slickstyles5]

Ok Excellent thanks!!

 

[strider6]

I agree that you should not have any problems, as long as no water condensation will occur at the interface between the two metals.
look at this docs as reference:

http://www.corrosionist.com/std889b.pdf

http://www.euro-inox.org/pdf/map/Contact_with_Other_EN.pdf

http://www.corrosionist.com/Galvanic_Corrosion.htm

S

Corrosion & Rust Prevention Control

 

[slickstyles5]

At the end of the day, i took no chances and used a zinc-plated steel instead of the stainless, so it is much more compatible on the chart with the aluminum!!