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

[Dave Brown]

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&MetalName=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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