[TheForge] forging copper; now beryllium copper

[Justin Fellenz]

Thanks, James.

--- James Binnion <jbin at well.com> wrote:

> Berylium sickness is bad news and there is a pretty solid cancer link
>  
> to beryllium. That said it is only used for copper alloys that must  
> be extra hard and springy. The addtion of almost any metal other than
>  
> silver makes copper less electrically conductive. This means higher  
> cost of passing current through it so a designer would only specify  
> beryllium copper if there was a specific need for mechanical strength
>  
> in that particular buss bar. Also Beryllium copper is much more  
> expensive than oxygen free alloy due in part to the extra precautions
>  
> that must be taken with its manufacturing so it is not common stuff. 
> 
> The vast majority of copper alloys do not contain beryllium. For lots
>  
> of information on copper alloys, properties, uses etc go to
> 
> http://copper.org/resources/properties/homepage.html
> 
> for buss bar alloys
> 
> http://copper.org/resources/properties/db/CDAUsesResultServlet.jsp? 
> form_id=All&category=Electrical&alloy=All&reason=All&use=Bus+Bars
> 
> James Binnion
> jbin at well.com
> 
> 
> 
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