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Subject:Re: seeking source for copper crush washers
From:Mike S
Date:Thu, 27 Dec 2007 11:06:03 -0500
At 10:59 AM 12/27/2007, Mike Collum wrote...
>Wouldn't dropping them into water "Temper" them ... making them really
>hard?

Nope. Makes no difference for copper. You generally drop 'em in water
so they don't oxidize as much from the high temperature.

High carbon steel will surface harden when quenched.