[TheForge] Heat Treating 5160 was Welding 5160

Tue Aug 26 12:42:02 2003

Hey Dave,
Bill's book is good, but the bible is the "HEAT TREATERS GUIDE" published by
ASM.
Regards,
Chuck
----- Original Message -----
From: "David E. Smucker" <[email protected]>
To: <[email protected]>
Sent: Tuesday, August 26, 2003 8:22 AM
Subject: Re: [TheForge] Heat Treating 5160 was Welding 5160


> Grant,  Thank you for the reply and the time you put into writing it.
Very
> helpful in the learning process.  I had missed the point of mass, as a
> factor in transformation time.
>
> For the record Bill Bryson's book is Heat Treatment, Selection and
> Application of Tool Steels.
>
> Again thanks, take care and work safe,
>
> Dave Smucker
>
>
> ----- Original Message -----
> From: "gblacksmith" <[email protected]>
> To: <[email protected]>
> Sent: Tuesday, August 26, 2003 3:28 AM
> Subject: Re: [TheForge] Heat Treating 5160 was Welding 5160
>
>
> > 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.  When critical temp is reached, the
> > transformation begins in earnest.   Why?  the mass is the key, as the
more
> > thickness of material you transform, the longer it takes, just like
> melting
> > butter.  Which would take longer at a given melting temp, a pat or a
whole
> > stick?  My observations do not conform to the data attributed to Mr.
> Bryson.
> > 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.
> >
> SNIP  no need to repeat all of this.
> _______________________________________________
> http://mailman.qth.net/mailman/listinfo/theforge
> theforge mail list group photo site is
> http://www.photoaccess.com
> Login:  [email protected]
> password:  anvil
> ___________
>
>