[TheForge] Re: Timken Case Hardening

[Lon Humphrey]

its hard to tell whitch ones use 52100...easy check if it rusts its most 
likely 52100  i use 52100 exclusively in my knives, i used to forge from old 
bearings till i had a few of them break in the quench... if your going to 
put the time and effort into a knife buy new steel...i get mine from 
Mcmaster Carr.. i forge down from a 1 1/2 round bar the cost isnt that bad, 
i think a 3 foot chunk cost me 30 bucks ....ive tryed all diffrent types of 
steel and to date 52100 is the best ive used yet... even at full hard its 
extremly flexable.. ive cut 1/4 inch sisal rope 400 times i had to stop 
there my hand got wore out and the edge was flexable enough not to chip out 
when i did the 90 degree bend on it good enough in my book


http://www.mcmaster.com/

Lon

----- Original Message ----- 
From: "Ron Childers" <munlaw2 at hcsmail.com>
To: "'Sponsored by ABANA'" <theforge at mailman.qth.net>
Sent: Thursday, March 20, 2008 9:48 AM
Subject: RE: [TheForge] Re: Timken Case Hardening


> Some years ago I made a big knife out of an old axel bearing from a semi. 
> I
> was told it was 52100 and I tempered in oil. It chopped through a 2x4 and
> would still shave, so it must have been pretty good steel. Also made some
> smaller blades out of car axel bearings and big ball bearings; same story.
>
> It must have been dumb luck that the bearings weren't Timpkin. Which
> manufacturers use 52100 for their bearings? Machinery's Handbook must have
> contacted Monmoth, Fag, or some other company for their information on
> bearing steels.
>
> Ron C
>
>
>
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