[TheForge] 4140 vs 4340

Wed Mar 27 21:14:04 2002

Thank you.

Grant Neil Sarver wrote:

> John Newman wrote:
>
> > How hot would you temper those dies Grant?  400F is generally considered a minimum.
> > Necessary for safety to relieve stresses.
>
> > You mentioned "the book " what book would you recommend for heat treating
> > information? My "ready reference" is "Modern Steels and their properties" published
> > by Betleham Steel.
> >
>
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