Re: [ATM] bending brass

[Gil McFarlane <gilboastro@yahoo.com>]

See, I knew there was a reason I ask you guys!  Thanks!



--- On Fri, 5/2/08, Richard <cnc@cncservo.co.uk> wrote:

> From: Richard <cnc@cncservo.co.uk>
> Subject: Re: [ATM] bending brass
> To: "Gil McFarlane" <atm@atmlist.net>
> Date: Friday, May 2, 2008, 7:52 AM
> Hi Gil,
> 
> Friday, May 2, 2008, 3:06:07 PM, you wrote:
> 
> GM> I recall that heating the brass and letting it cool
> will make it
> GM> more malleable (is this correct?)
> 
> No, it's the other way round for Copper alloys compared
> to Steel.
> 
> Copper Alloys :
> To Anneal, heat to dull red , hold for 1 hour per inch
> thickness, and quench.
> To Harden, heat to dull red , hold for 1 hour per inch
> thickness, and cool slowly.
> 
> Steel Alloys :
> To Anneal, heat to bright red, hold for 1 hour per inch
> thickness, and
> cool very slowly.
> To Harden, heat to bright red, hold for one hour per inch
> thickness
> and quench in water, brine or oil, depending on grade.
> Temper while
> still warm or it will be dangerously brittle.
> 
> -- 
> 
> Best regards,
>   Richard in the UK
> 
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