Re: C170 Copper - Beryllium Copper Alloy

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Dan" <DUllfig@xxxxxxxxxxxxx>

Don't you mean beryllium in its pure form? In aerospace we machine 
beryllium copper al the time... It's alloyed in the copper, and not 
that much, for that matter. It's the only way to make copper springy. 
Finger stock is made of beryllium copper.

Dan

----- Original Message -----
From: <mailto:tesla@xxxxxxxxxx>Tesla list
To: <mailto:tesla@xxxxxxxxxx>tesla@xxxxxxxxxx
Sent: Sunday, October 09, 2005 1:09 PM
Subject: Re: C170 Copper - Beryllium Copper Alloy

Original poster: robert heidlebaugh 
<<mailto:rheidlebaugh@xxxxxxxxxxxxxx>rheidlebaugh@xxxxxxxxxxxxxx>

Cameron. Beryllium is toxic to human tissue in all forms, Only the crystal
oxide is stable enough to be in contact with skin with out causing a
cancerous ulcer. in the lungs it is fatal. I recommend not using it and never
grind it with out protection. Use a protective mark.
    Robert   H
--


 > From: "Tesla list" <<mailto:tesla@xxxxxxxxxx>tesla@xxxxxxxxxx>
 > Date: Sat, 01 Oct 2005 07:30:14 -0600
 > To: <mailto:tesla@xxxxxxxxxx>tesla@xxxxxxxxxx
 > Subject: C170 Copper - Beryllium Copper Alloy
 > Resent-From: <mailto:tesla@xxxxxxxxxx>tesla@xxxxxxxxxx
 > Resent-Date: Sat,  1 Oct 2005 07:30:17 -0600 (MDT)
 >
 > Original poster: "Cameron B. Prince" 
<<mailto:cplists@xxxxxxxxxx>cplists@xxxxxxxxxx>
 >
 > Hey guys,
 >
 > As some of you will recall, I built my large coil's primary from bronze
 > weather-stripping based on Terry Blake's design. I'm noticing the issues
 > that several list members warned me about. The extra resistance of the
 > bronze is causing it to get rather hot. This is in turn causing the foam
 > tape used as a winding spacer to melt, not to mention the energy being lost
 > to it.
 >
 > I ordered some copper ribbon to replace the bronze but when I 
received it, I
 > noticed it had a gold color similar to the bronze I already had. I called
 > the seller and asked about it and he told me that it was actually an alloy
 > known as C170 copper which is a Beryllium Copper Alloy. He offered to allow
 > me to return it if needed.
 >
 > What do you think about this alloy? Anyone using it? Should I return it and
 > look for 100% copper?
 >
 > Thanks,
 > Cameron
 >
 >