well roy, i'm surprised. my instinct was that there would be very little
difference, but the values i found are 109 w/m-k for a380 and 167 for a356
(not sure what units you were using...). since a380 is only 80-89% aluminum
- a356 is around 93% - and has more copper than a356, it's easy to see why
there is a difference. a356 is pretty much used only for gravity castings,
but is an excellent approximation of most diecasting alloys.
will pattison, idsa
From: RoyJRATC@aol.com [mailto:RoyJRATC@aol.com]
Sent: Wednesday, August 08, 2001 12:50 PM
Subject: non RP - thermal conductivity of A380
Once again, I turn to this list for an answer I cannot find in the real
world. I need to get a comparison on a job I'm doing now, between the
conductivity of A356 (0.36 @ 25-C, CGS) & A380. My metals book does not list
physical properties for diecast alloys. Go figure!
Roy Sheppard, Jr.
Roy Sheppard, Jr. CPMR
Atlantic Technical Components, Inc.
269 Heather Lane
Franklin Lakes, NJ 07417
201-337-2477 || 201-337-3008 FAX
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