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Author Topic: Frizzen hardness  (Read 4432 times)

billd

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Frizzen hardness
« on: July 07, 2008, 04:05:13 AM »
Does anyone know how hard a frizzen should be, either Rockwell or Brinell?

Thanks,
Bill
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ironwolf

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Re: Frizzen hardness
« Reply #1 on: July 07, 2008, 07:01:50 AM »
Never tested one that Way Bill.  On a 1095 frizzen, I oil quench at a non mag. temperature. Then draw it back to around 400 deg. and flame the nose to a bluish color with the rest submerged.

 Kevin
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George F.

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Re: Frizzen hardness
« Reply #2 on: July 07, 2008, 03:35:07 PM »
Now don't laugh at me!  But my memory isn't what it use to be... But I think it's 65 or 68.   ...Geo.
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Offline P.W.Berkuta

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Re: Frizzen hardness
« Reply #3 on: July 07, 2008, 06:54:26 PM »
Humm-- this is not 1095 but real close - seem to remember reading the paper jacket on Starrett O-1 tool steel a while back. Max hardness @ 1600 degrees was 66 on the Rockwell "C" scale  prior to "draw" temp. This will leave you with a brittle frizzen  :'(. I forgot what the hardness was when drawn back @ 350 -375 degrees  ::) -- I'm going to say 60-62 Rockwell "C". This is hard!
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Offline LRB

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Re: Frizzen hardness
« Reply #4 on: July 07, 2008, 08:27:22 PM »
  Assuming you get good hardness in your quench, temper range should be 375o, to 400o. Jim Chambers recommends 375o. I can only guess that the hardness would be around 60, to 62, give or take a bit. If you can cut or scratch it with a file, it would be below 58o. A common file will skate on steel above 58 Rc.
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