[RE-wrenches] iron & aluminum

Glenn Burt glenn.burt at glbcc.com
Fri May 29 12:53:02 PDT 2015


Stainless steel bolts and nuts as well as Ss flat washers where the dissimilar metals meet to keep them separated works OK.

Sincerely,
Glenn Burt
Sent from my 'smart' phone so please excuse grammar and typos.

-----Original Message-----
From: "RM You" <solareagle at solareagle.com>
Sent: ‎5/‎28/‎2015 22:21
To: "RE-wrenches" <re-wrenches at lists.re-wrenches.org>
Subject: [RE-wrenches] iron & aluminum

Hi Wrenches, I have had a couple of customers want to fabricate their own PV pole mounts and racks out of iron. Aside from the galvanic corrosion and weight issues is there anything else I should caution these guys about? Any stories about failures etc? My druthers are to stay with the engineered aluminum pole mounts but when you’re dealing with someone with fabrication experience and the cost for pre-fab is high then the obvious outcome occurs. If the unit is properly treated/painted I imagine it could last many years. Is there a way to attach an anode to such a rack or would simple non conductive insulation between panels and rack be the best answer?

Ron Young
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