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Re: Stainless & rusting

To: Barrie Robinson <>
Subject: Re: Stainless & rusting
From: Stephen West-Fisher <>
Date: Fri, 29 Nov 2002 09:55:33 -0500
Barrie Robinson wrote:
> I dimly remember my metallurgy lectures at university and I do not seem to 
> be able to work this one out.  Different metals in contact with each other 
> when a electrolyte (water will do) is present causes corrosion due to their 
> dissimilar potential differences.  So what happens when one uses stainless 
> steel bolts in plain jane steel of wings (fenders) etc.?  Is stainless 
> inactive and appears like plastic to the other metal - or do they rot the 
> other metal?

Stainless and aluminum are bad news together, ask any sailboat rigger :-)

Stephen West-Fisher
Coastal Data Systems

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