[TheForge] Suggestions needed for scroungeable steel

Tue Nov 18 11:27:00 2003

Bruce:  You might try looking in scrap metal yards for 4140 round.  There is
much of this type laying around that was used for large-bore guns/cannons
and shafts from the WW2 era   In my area, there is a yard that has 30'
lengths of 4140 in 5" diameters.  I would guess that NJ would have similar
stuff.  4140 makes decent hammers when heat-treated properly and it is what
Sid Sudemier uses for the LG dies.  Grant
----- Original Message ----- 
From: "Bruce Freeman" <[email protected]>
To: <[email protected]>
Sent: Tuesday, November 18, 2003 7:52 AM
Subject: [TheForge] Suggestions needed for scroungeable steel


> I'm designing another treadle hammer, a lightweight job.  I want the ram
> to be 20#.  What would be ideal is square or roundstock of about 2
> sq.in. in cross-section (i.e., 2" square or 2.25" round) and about 18"
> long.
>
> Ideally, the material would be suitable for use as a hammer, with
> ordinary hardening & tempering.  Exotic materials not needed, but mild
> steel wouldn't be appropriate unless faced with tool steel (a
> possibility I'd prefer to avoid).
>
> Since I prefer to design in scroungeable materials, I could use some
> suggestions as to sources of such steel.  The truck axles I've seen are
> of smaller diameter than this (though I've seen tractors with axles of
> 3" dia.).  Track pins seem to be shorter than this - like 8" or so.
> Anyone have any other suggestions - preferably of materials you'd have
> no particular trouble scrounging yourself?
>
> Thanks in advance,
>
> Bruce
> NJ
>
>
>
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>
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