[TheForge] Heat Treating 5160 was Welding 5160

[Dave Brown]

At 00:28 08/26/03 -0700, you wrote:
>Interested parties:  Transformation time from pearlite and ferrite to
>austenite is a function of the mass of the piece, rather than its alloying,
>assuming critical temp is reached.   <snip>
>I have not been able to get even very thin w-1 knife blades to fully harden
>in five minutes at critical, as measured by pyrometer, using oil quench.

Just out of curiosity ... Why would you quench W-1, a steel designed for 
water hardening, in oil?  I would think that would contribute significantly 
to your not reaching full hardness when you quench it.  Why not just quench 
in water?

<snipped a ton of other stuff not needed for this question>

Dave Brown