Letter 29025

Construction issues with dissimilar metals  

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I am planning to use either painted steel beams or galvanized steel beams with aluminum grating on top in a waste water treatment plant. How do I best prevent galvanic reaction between the dissimilar metals? Also can stainless steel bolts be used with: A) regular aluminum B) anodized aluminum.

Arvid Meland
engineering - Calgary, Alberta, Canada

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