01 and McMaster-Carr Fast Quench?

D

dustfurn

Joined
Oct 2, 2007
Messages
72
Hey guys,

I'm getting ready to do the HT on my first blade forged from O1. I've HT'd a few blades forged from W1, 9260, and 1095 successfully using the 11-second McMaster-carr quenching oil. Is this too fast for O1? Am I liable to ping or warp?

Also, anything I should do differently when HT-ing O1 vs, say W1?

Thanks for any/all advice. This site rocks. :thumbup:
Dustin
 
O1 wants to soak at a well controlled 1475-1500 for 10+ minutes for best results. Have to let someone else answer about the oil because I've been using Heatbath AAA which is medium speed.
 
As far as my understanding of the oils, that sounds good for 01. It sounds too slow for 1095 though. As stated, the 01 needs a 10 minute plus soak time, at the heat range mentioned. Due to the alloys in 01, it takes a while for the carbon to go into a good solution. I soak mine for 15, to 20 minutes, using the PCB coating to prevent decarb.
 
the quench oil has been working fine with 1095 for me...completely skates my sharpest file and takes/holds a fine edge. of course this is with small, thin, paring knife blades. don't know how well it would work on thicker stuff.

thanks for the help with the O1.
Dustin
 
Mcmastter-Carr 11 sec quenching oil is generily for the faster quenching steels like W-1 and 1095
The The 28 sec oil is the recomend oil for oil hardining steel like O-1.
 
I just went through a heat treat with 4 O1 blades and here is what I found. I followed a spec provided by a steel producer which called for a through heating to 1250, bring to 1450 to 1500 and heat all the way through. I went to 1450 and soaked for 5 minutes (5/32 max thicknes when spec called for 30 min per inch of thickness) got really good results and test samples were very fine grain and tough. I temper for 2 hr at 400. My quench is atf. I have tried longer soaks at 1500 and had alot of decarb.
 
dustfurn said:
the quench oil has been working fine with 1095 for me...completely skates my sharpest file and takes/holds a fine edge. of course this is with small, thin, paring knife blades. don't know how well it would work on thicker stuff.

thanks for the help with the O1.
Dustin
Click to expand...


Not used any on thicker 1095, but works great on 1065 :thumbup: and W2
 
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