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Re: Plug welding holes in sheet metal.

To: <triumphs@autox.team.net>
Subject: Re: Plug welding holes in sheet metal.
From: "Nolan Penney" <npenney@mde.state.md.us>
Date: Tue, 19 Mar 2002 06:36:36 -0500
I stand corrected.  That's what I get from trying to remember what I've
read from aluminum radiator manufacturers web pages and such without a
proper cup of coffee. LOL!

>>> <PorscheRcr@aol.com> 03/15/02 11:54PM >>>
Funny... my Machinerys Handbook claims that Copper transmits about
double the 
heat in Btu/sec that Aluminum does... .00404Btu/sec for Copper and
.00203 
Btu/sec for aluminum.  The reason aluminum radiators tend to work
better 
isn't because aluminum transfers heat better,but due to being able to
make 
the tubes larger and/or thinner in aluminum than copper.

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