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Re: cast iron and aluminum compatiblilty

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Cast Iron is slightly higher than steel in the Galvanic Series so the potential for problems would be slighly higher than it would be for Steel.
John Schenne, PE
Schenne & Associates
----- Original Message -----
Sent: Sunday, June 24, 2001 10:55 PM
Subject: cast iron and aluminum compatiblilty

I have been asked whether placing new aluminum framing on existing cast iron brackets will cause corrosion problems.  I don't deal with either material very often, but I do recall having to separate aluminum from galvanized steel in the past.  If I do have to separate them, would painting suffice or is something more elaborate required.  The aluminum framing is bleacher seating for a stadium.

Thanks for your help.


Kenneth S. Peoples, P. E.
Lehigh Valley Technical Associates
1584 Weaversville Road
Northampton, PA 18067-9039
ph: 610-262-6345
fax: 610-262-8188
e-mail: kpeoples(--nospam--at)

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