EVGRAY Archive

Annealing-Temperatures-of-Common-Jewelry-Metals-Annealing-Temperatures-for-Metals.pdf

2 messages · 2018-03-22T15:48:52+00:00 → 2018-03-22T16:15:16+00:00

[1/2] Annealing-Temperatures-of-Common-Jewelry-Metals-Annealing-Temperatures-for-Metals.pdf

2018-03-22T15:48:52+00:00 · Norman Wootan <[email protected]>
Message-ID: <[email protected]> 
Sent from Yahoo Mail on Android99.99 pure copper, when annealed "dead soft" has almost 100% conductivity according to International Standards. Resistance is in four decimal points!

[2/2] Re: Annealing-Temperatures-of-Common-Jewelry-Metals-Annealing-Temperatures-for-Metals.pdf

2018-03-22T16:15:16+00:00 · triadutrad <[email protected]> <[email protected]>
Message-ID: <[email protected]> 
link went kaput on it!  
 

---In [email protected], <nwootan@...> wrote :

 

 Sent from Yahoo Mail on Android https://overview.mail.yahoo.com/mobile/?.src=Android
 99.99 pure copper, when annealed "dead soft" has almost 100% conductivity according to International Standards. Resistance is in four decimal points!