[TheForge] spring steel addendum

[David E. Smucker]

Now you tell us.  Most harrow, and hay rake springs are 1095, the same basic 
steel as W1.

W1 is very brittle unless you temper it if you have quenched this steel --  
so don't quench it, just let it air cool.  The working end will still be 
hard enough, and the spring will still be springy enough.

I make most of my spring swages using 1/4 x 1 and 1/2 hot roll (A36) -- no 
heat treat, no quench.

Dave Smucker

--------------------------------------------------
From: "lee robbins" <naturadoc1 at yahoo.com>
Sent: Wednesday, May 07, 2008 8:22 PM
To: <theforge at mailman.qth.net>
Subject: [TheForge] spring steel addendum

> in my rambling mind i omitted the main question
> i am halving a harrow to make spring swages for the
> treadle hammer
> and am worried about it cracking at the bend loop.
> Lee
>
>
> 
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