[TheForge] Re: [TheForge] Re: [TheForge] Re: [TheForge] R e: [TheForge] Heat Treating 5160 was Welding 5160

Sun Aug 31 10:57:00 2003

Hey Ed,
Check out the procedure in The Heat Treaters Guide.
After the high temp treatment there is a stabilizing stress releaving step
at about 320 F followed by a cryogenic quench which is immediately followed
by a tempering procedure as the billet slowly rises past 120 F, the billet
is tempered at 1000-1200 F 3 times.
Needless to say because of the complexity of the process there are many
short cuts that have been made by heat treaters Depending on how critical
the end product is.
Chuck
----- Original Message -----
From: "Dave Brown" <[email protected]>
To: <[email protected]>
Sent: Saturday, August 30, 2003 9:51 PM
Subject: Re: [TheForge] Re: [TheForge] Re: [TheForge] Re: [TheForge] Heat
Treating 5160 was  Welding 5160


> At 19:28 08/30/03 -0700, you wrote:
>
> >On Saturday, August 30, 2003, at 04:13 AM, Ralph Sproul wrote:
> >
> >>         Ed,  It is my belief the H13 doesn't start to temper back until
> >>800-900 degrees, so I dont' think your home oven is touching it.
> >>
> >>Ralph
> >
> >The Carpenter data sheet for H13 lists 600F as the first temper
> >temperature and  lists a hardness of 51-53 R C at 600F
> >
> >Jim
>
> And according to Principle Metals at
>
http://www.principalmetals.com/properties/result.asp?Family=Tool+Steels&Meta
lName=H13
> Anneal at 1600 F followed by slow furnace cooling at a maximum of 40 F per
> hour.
>
> Forge at 1975 F down to 1700 F. Do not forge below 1650 F.
>
> Heat treat:  Preheat to 1500 f and then heat to 1850 F. Hold at 1850 f for
> 15 to 40 minutes and then air cool (air quench).
>
> Tempering:  Temper at 1000 F to 1200 F for Rockwell C of 53 to 38. It is
> advisable to do a double temper by repeating the process and use 1 hour at
> temperature each time.
>
> I don't think that this is a complete data sheet, but it does give enough
> information for most of us to work with.
>
>
> Dave Brown
> Heritage Smithing
> Green Bay, WI
> ABANA, UMBA, GoM, MODA, ARG
>
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