[TheForge] Jackhammer bits
Andy Vida
osan at netlabs.net
Thu Jul 15 11:40:07 EDT 2004
PlumDon at aol.com wrote:
>
> While in the process of scrapping out this week I came across a couple
> hundred pounds of 1" to 1-1/4" jack hammer bits. Could anyone tell me what steel
> they are probably shaped from? I will offer them up at some upcoming affiliate
> meets but would like to forge and temper one first.
They are often S2, rarely S5. That's all I know about.
>
> Also found quite a few 2" x 6" track pins from a bulldozer. Any ideas what
> that alloy might be?
Often 4140
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