[TheForge] Steel substitution

Wed Jan 16 08:57:00 2002

Daniel,

I you live near an injection molder, see if they will
give you cut-offs from the "knock out pins" or
"ejector pins" When they scrap tools they throw it all
away and when they make the tools, the cutoffs are
available.

These pins are typically an H-13 steel that must
withstand the high working temperatures of the molding
process. 

I work with a molder who gives me handfulls of the
pieces. They are a bear to forge, but do not need to
be heat treated. If they get hot, just let them cool
on the bench and they stay hard (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.

I have made numerous gouges, stamps and chisels and
they work very well.

Where are you located?

Hope this helps.
Frederick
--- Daniel Crowther <[email protected]> wrote:
> 	I need to make a hot cut chisel for making animal
> heads.  I had heard that 
> S-1 was the steel of choice since it could be made
> very thin and still have 
> excellent heat resistance.
> 	I do not have any S-1, however I do have access to
> the following 
> steels:  A36, 5160, O-1, and automotive/truck engine
> valves.  Which one of 
> these would be my best choice?
> 
> Thanks,
> 
> Dan Crowther
> http://www.oakandacorn.com
> 
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