[TheForge] Steel substitution

Thu Jan 17 22:50:14 2002

john,

When I temper stuff, I look for oxide colors. Are you
saying that you temper it to a glowing faint red (ala
900 degrees) Could you be a bit more specific? This
sounds very helpful.

--- John Newman <[email protected]> wrote:
> I use H13 on cold steel regularly and find it holds
> up well.  I used a
> H13 punch in my flypress to punch over 200 1/4"
> holes cold and it still
> looks fine. You have to temper it to a faint red in
> the shadows after
> air hardening it at a yellow heat.  If you skip the
> temper the edge
> dulls.  I have found H13 to be fairly cheap as well
> (12' of 3/8" and
> 1/2" round for $30 Cdn.)
> 
> John Newman
> 
> Frederick Faller wrote:
> 
> > These pins are typically an H-13 steel that must
> > withstand the high working temperatures of the
> molding
> > process.
> >
> >  (H-13 is self
> > hardening steel) If you work the steel cold, these
> > will dull up as they are not a particullarly hard
> > steel, so don't use them for cold cutting, but
> with
> > hot work, you never have to worry about losing
> > hardeness with tempering because they self harden.
> >
> >
> 
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