Howdy!

In article ,
RST Engineering wrote:
Oh, please, for the love of God, don't do this. This is how you HARDEN
them, not soften them for the annealing process. Heat them red hot with a
torch and let them cool in ambient air to soften them.

Copper and silver (and probably many other non-ferrous metals) are annealed
by quenching. You can't harden them by heat treatment. You harden them by
working them. Yes, this is opposite to how you harden/soften steel.

Google for "anneal copper". One site I found was
http://www.key-to-metals.com/Article25.htm
which seems to cover more than just annealing work-hardened copper.

Now, one can fairly wonder why one would want to reuse old gaskets when
they can be bought fairly inexpensively, but that is a different matter.

yours,
Michael


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Michael and MJ Houghton | Herveus d'Ormonde and Megan O'Donnelly
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