Quenching copper will not make copper hard and brittle as e.g. carbon
steel would. I have used the method for years bending/shaping copper
pipe and softening sealing washers.
Kees Oudesluijs
John Rowe schreef:
> Hi Simon
>
>
> Don't quench in water or oil or anything.
>
> Quenching makes any metal go hard or brittle etc.
>
> To anneal just heat to cherry red and allow to cool in the ambient
> temperature.
>
> It will then become soft and malleable.
>
> Trust me, plumbers do that all the time here in WA as the water piping
> is required to be cold drawn, ie hard and stiff, and to expand the
> pipe to make a joint the pipe requires annealing.
>
> cheers from WA
>
> John
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