Of course, if we are talking alloys here, we are not talking about Aluminum.

With Steel, we are not talking about an element, we are talking about an
alloy.

I am not familar enough to know how much of a market pure rolled aluminum
has, I would suspect most 'Aluminum' sheets are some type of alloy.

And then there is 'tin' foil.

tim in san jose

----- Original Message -----
From: "Stan Wilder" <wilden1-1@sbcglobal.net>
To: "Aristotle Sagan" <killer_jupiter@HOTMAIL.COM>;
<vanagon@GERRY.VANAGON.COM>
Sent: Wednesday, June 30, 2004 1:46 AM
Subject: Re: Re: Curious Question (NVC)

> OK Back to timing belts on this one.
> I'm not the person to be specific but there are different types of
Aluminum
> Plate just as there are different types of steel and stainless. They will
> have varying Rockwell hardness and strength characteristics.
> Some are specific for machining, some are billets to be melted for
castings,
> some are soft for extrusions, some are Alloys for specific strength
> requirements.
> I'd suggest that you ask the local aluminum distributor for his
> recommendations.
>
> Stan Wilder
>
> ----- Original Message -----
> From: "Aristotle Sagan" <killer_jupiter@HOTMAIL.COM>
> To: <vanagon@GERRY.VANAGON.COM>
> Sent: Tuesday, June 29, 2004 3:33 PM
> Subject: Re: Curious Question (NVC)
>
>
> > I am an engineer, compooter though, so purely a guess eminating from the
> dim
> > reaches of Chemestry101. The thermal qualities should be the same, the
> > strength qualities should be radically different from the process of
> > manipulating the billet in the rolling and tempering processes the AL
> > undergoes.
> >
> > I think the heat transfer should be the same as you have not changed the
> > electron structure of the material, just how it's aligned.
> >
> > tim in san jose
> >
> >
> > >From: John Rodgers <jh_rodgers@BELLSOUTH.NET>
> > >Reply-To: John Rodgers <jh_rodgers@BELLSOUTH.NET>
> > >To: vanagon@GERRY.VANAGON.COM
> > >Subject: Curious Question (NVC)
> > >Date: Tue, 29 Jun 2004 14:43:17 -0500
> > >
> > >I'm not an engineer, but have a question.
> > >
> > >Cast aluminum has a granular crystal quality in it's structure. Milled
> > >Aluminum (hammered, rolled) does not.
> > >
> > >Of two identical parts, one a machnined aluminum casting, and the other
> > >machined in milled aluminum, which would most likely have the best 1)
> > >strength 2) heat transfer properties.
> > >
> > >Inquiring minds would like to know!
> > >
> > >Anybody??
> > >
> > >Thanks,
> > >
> > >John Rodgers
> > >88 GL Driver
> >
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