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RE: Aluminum/steel contact

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Not often considered because considered negligible but there is also a 
potential between some grades of SS and aluminum so might be an idea to 
check the SS/Al interaction too, especially if chance of long term exposure 
 to wet or other electrolytic conditions.

Thor A. Tandy P.Eng, C.Eng, Struct.Eng, MIStructE
Victoria, BC, V9A 5N1
Email: vicpeng(--nospam--at)
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-----Original Message-----
From: seaint-seaosc(--nospam--at) [mailto:seaint-seaosc(--nospam--at)] On 
Behalf Of h.d.richardson(--nospam--at) Sent: February-28-13 3:43 PM
To: seaint-seaosc(--nospam--at)
Subject: Re: [SEAINT-SEAOSC] Aluminum/steel contact


        I'm not really an expert in this area but you might check out 
Micarta (spelling?).  Many years ago I checked this out as a thermal break 
between piles in permafrost and structural members.  Its primary use is in 
electrical circuit boards; it also has fairly high bearing strength.


H. Daryl Richardson

----- Original Message ----- From: "Drew Morris" <dmorris(--nospam--at)>
To: <seaint-seaosc(--nospam--at)>
Sent: Thursday, February 28, 2013 2:50 PM
Subject: [SEAINT-SEAOSC] Aluminum/steel contact

> I have a case where the owner wants to use a aluminum handrail/post
> system that slips into aluminum sleeves that are bolted to structural
> steel.  I need to add a layer of material between the aluminum plate
> that holds the sleeve and the structural steel.  I am using stainless

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