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Heat Treating and Metallurgy Discussion of heat treatment and metallurgy in knife making.

 
 
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Old 03-02-2016, 01:15 PM
jdale jdale is offline
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Join Date: Jan 2012
Location: Lansing MI
Posts: 471
Heat Treating 154CM

I am having a heck of a time narrowing down the proper HT formula for 154CM. I haven't had anything to do at work today so i have spent the last few hours trying to figure out how to HT the steel from Aldo, so far i have seen at least 5 different methods.

I have contacted Aldo but haven't heard anything back yet so hopefully someone on here can point me in the right direction. These recipes seemed to keep popping up

-Austenize at 1950F for 45-60 min
Plate quench
cryo treatment
temper @ 500F 2x 2hr
RC aprox 61

-Preheat blade to 1500F for 10min
Austenize at 2000F for 20 min
oil quench
Cryo treatment
temper @ 400-425F 4 Hrs
RC aprox 60-60.5

-Austenize at 1950F for 45 min
Plate quench
cryo treatment
temper @ 450F 2x 2hr
RC aprox 60-61

-Austenize at 1950F for 25 min
Plate quench
cryo treatment
temper @ 450F 2x 2hr
RC aprox 59-60


It seems from all the text that a 61RC is a sweet spot for this steel.
I will be using dry ice/acetone for my Cryo treatment.
I can oil quench or plate quench.

I don't have access to a hardness tester so I am kind of flailing in the dark here.
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154cm, advice, back, blade, blades, cryo, demo, design, edge, folding knife, heat, heat treatment, hobby, how to, knife, knives, makers, making, pocket knife, s30v, scratch, sharp, steel, temper


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