How to Heat Treat Stainless Steel for Knife Making 

Very good man, thanks for sharing with us!

Best description of plate use I have seen. I cryo treat hammers in liquid nitrogen. I keep about 20,000 gallons around. Seriously. BTW, it will not get to 400 below. Also, each time it is loaded and offloaded it warms up never to go back down. We store over 5 million biological items in ln2 is why I have such access. Also an inventory challenge. Done this for 65 years this year!

Very informative, great video!

this was an absolutely informative video. thanks buddy. if i ever meet this fellow, dinner is definitely on me. it explains, to some degree, why some manufacturers' blades are so much softer than others...it could be the final step, the choice in material...

Awesome video , thank you.

As always good job thanks

Very cool!!

Great info as usual!!!! Hey, you can pour denatured alcohol in with your dry ice to lower temps significantly.

Good job

New sub, thanks for the content. I found your video interesting, informative and well presented. I look forward to viewing more from your channel.

Nice set up a good results. I have exclusively been using AEBL and send out for HT. Problem for me is that I only rough in a short bevel prior to HT to avoid warps. Being that I only have a 1x30 HF, the finish grinding takes forever due to the extreme-hardness f the steel. I think I will start grinding my bevels much more from now on prior to the HT. At least until I get a better grinder.

thankyou for the video. very informative but leaves me wqith one question.....why the cryo treatment???

Great Video, Have you tried your AEBL process without doing the cryo treatment? I'm just wondering what the negative if any would be if you skipped that part of the process. Thanks

I’ve recently made a knife blade that is my best work so far and I know you often respond to comment in your opinion what do to think the best knife handle material in terms of looks and durability

How many degrees and how many minutes did you heat treatment? Why did you put it in ice after cooling?

Good video budy ! I have a TIG welder , and was wondering . I you could make a small concave where i can put my knive in . Purge it with argon close it of and put in an oven ? Grtzz john

Ever tried duplex?

There's some issue with the cheatsheet. I can't dowload it on the website... In the video, when you refer to a temperature, you're talking Farenheit and not Celsius, correct? I assume that the Cheatsheet has the different temperatures to get to different hardnesses, but in case not, do you know to which temp i should heat up a blade to get to 58-60 HRC in aeb-l ?

Can a heat treat be achieved with a forge?

I’m curious if you can reuse the foil wrap? Instead of spending the money on wrapping each knife with new foil?

When it comes 2 knifemaking it usually depends on alot of the tools that is needed, which is very expensive ///

I would like to ask you do you offer any heath treating services ? for stainless steel knifes ?

Before cooling on a dry ice, do knives need to be completely cooled to room temperature or do they need to be still hot or warm? Thanx.

That carpenter clamp idea was a great idea 👍🤔

Can you describe exactly what we are doing

Hi Unfortunately this metal is so rare in my country. Which another stainless steel do you suggest for making knife and sword kinds and air rifle? Please answer my question I love stainless steel Thanks 🙏

If the aluminium plates you use to hold the knives were ice cold, lets say put in the freezee. would that be better or worse?

wht if u dont hv dt equipment..onli u got is charcoal ,no oven etc

Hi very informative but really annoying compressor noise.

I’ll just send mine to you and let you throw it in with yours. Lol. I make mine out of free steel, 304-304L. It seems hard enough and holds an edge well.

After this process, does the stainless steel get rust? Or still maintain its anti-rust feature?

You should do a giveaway??

Please help if you could please ..I have some blanks of some kind of stainless steel that my old boss had someone make or cut out if you will ..but I have Tried and tried to shape the knife or what it's called sorry IAM drawing a blank right now ..but anyways I have used a hand held belt sander and even a 4 inch grinder but the grinder is not what I want to do when it comes to shaping my knife before the heat treating ..so with that all being said I can't hardly dent the knife with the files or even the belt sander it takes almost hours break the surface of the knife ..I told my old boss who had is friend make these blanks for me ..to tell him and my old boss this is nothing for a beginner to learn on ..so I hope you kinda of get what IAM trying to say here..hope to hear from you..thank u ..and nice video keep them coming . !!

Can I use this metal for sword too?

Can I use this metal for air rifle too?

3:43 Is all you need

The foil you used to wrap the knife is aluminum or stainless steel.

what would happen if you used regular foil?

Just use clay, brother. Don't waste all that foil and fiddling. This way you can choose what part of the blade gets exposure, too. If you want to go a step further you can double case it, case the edge with the carbon, then case the entire blade with extra steel pressed firmly against the rest as heat sinks, then directionally heat the casement you've made. I don't know if that makes sense without a diagram, but it really is as simple as it sounds. If you want real value for your money I suggest also looking into cryonic treatment of blades. For drill bits a thirty minute bath in liquid nitrogen doubles even triples it's lifetime. Good heat treating also includes cooling, not just heating. Edit: I wrote that before you mentioned cryo! I'm SO pleased to hear someone in your field is even aware of this! Although using dry ice you're just wasting your time. You won't get any crystallization or strengthening from that little change. You desperately need to make yourself a liquid nitrogen generator, you can bang one together for fifty bucks.

I was dismayed to recently learn that Bob Loveless sent his blades off for heat treating as did Jim Merritt who ran the shop later. How lame. If one doesnt heat treat their knives themselves, then all they are doing is assembling knife-making components and materials. And Loveless did stock removal only. He was basically assembling kits from parts created and processed by other people but giving the final product his own twist.. I dont even see where someone would get the motivation if they werent doing it all themselves. Jay Fisher says he considers heat treating to be the main thing that distinguishes a knife from a hunk of metal.

If you're narrating the process, why do you need the live sound of the compressor charging? It's really disturbing

Sorry had to dislike because I don't want 100+ knife making vids for watching this.