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Jack Hayes
 
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Default Heat treating 4130 steel at home


"John Olson" wrote in message
...
Is it possible to heat-treat 4130 CroMo steel at home? Does anyone know

of
an online reference that explains the process? I've got a kiln big enough
to do hold the piece, and it runs to over 1200 deg C. I'm looking at
building an anti-sway bar for a car I'm making, and I may have to make

more
than one to get the values right.

Cheers

John



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I only did this once so don't consider this expert advice. Heat the part to
the point that it is no longer attracted to a magnet, then quench in oil
till cool. Then heat to a much lower temperature in the range of 350 to 600
Deg. F for long enough to soak the complete part. A lower temperature will
provide a harder but more brittle part, and of course if you heat it high
enough you anneal it and are back where you started. I was making a wrench
and used 400 Deg F in my wife's gas cook stove oven. Other will likely
provide a better description and more precise temperatures.

Jack