[TheForge] Fw: flint strikers

[David E. Smucker]

Dan, So little hardness is lost with a low temperature temper that it would 
seem to handle these the same as woodworking tools.  If you temper in an 
oven at 325 to 350 F for 1 hour you only loose a point or two of Rockwell C 
but gain a lot of toughness.  They will still be rather brittle but very 
functional.

If you color temper a very light straw from retained heat is all you need, 
but the oven is safer in not over tempering.

Dave

--------------------------------------------------
From: "dan tull" <dantull at numail.org>
Sent: Tuesday, March 24, 2009 11:20 AM
To: <theforge at mailman.qth.net>
Subject: [TheForge] flint strikers

> I know we covered this before, but what was the consensus of opinion , to 
> temper or use as quenched?  From hay rake tines to files, seems they would 
> be too brittle and hard to shave sparks in "as quenched". I expect it will 
> be a "resultant" issue , as in, do two and see which showers best.
>
>
> dan tull
> Georgia
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