How To Heat Treat A Knife | The 4 Steps You NEED To Know

[@OUTDOORS55]

Important 🛑 MUST READ below ⬇️ In light of new information provided by Dr. Larrin Thomas after this video was published, canola oil is NOT a suitable quench oil. In most cases you will NOT achieve full hardness, or even close to it , using canola. Parks 50 quench oil is recommended and can be found here amzn.to/3F1unye I would also recommend his book amzn.to/3IVs6ac If you can not buy the proper quench oil id would recommend sending your blades out for heat treatment as its relatively cheap and you will get perfect results 🙂 Best beginner sharpening stone as of 2020⬇️ amzn.to/2usHlq3 Leather strops and compound at www.knifepointgear.com All strops made by me🙂 These are affiliated links i may earn from qualifying purchases.

[@sheicontd6726]

Hi I need your help

[@haldyordan2316]

Is used motor oil good? Got lotsa of it.

[@jomamma1750]

Why not use an infrared heat gun to get the temp?

[@buckfuhtt2083]

@@haldyordan2316 I've used it before. But he'll, I've used it chain oil in my saw too.

[@eggdog1448]

Are you heat treating rebar?

[@robertmcconville4105]

From a professional heat treater, lots of good content in this video. A couple of tips for quenching - use brine water for plain carbon steels as it reduces vapour quench phase (note the nose of the curve in the temp phase transition diagram and this should be avoided with rapid cooling at the higher temperatures). Also vapour phase can cause uneven cooling and thermal stresses when entering the hard martensite phase which leads to cracking). Second agitation is important as you mention for same reasons above. Rapid cooling down to low temperatures is good for inducing compressive stresses on surfaces - which helps to strengthen and toughen a blade. Sure, sometimes you get a crack and it usually due to material defects. Throw it out and start again! (We cant do that in our game as it might be a $100k part!)

[@justinritter4924]

Little did you know this simple comment you made was very very informative to one coming into it

[@wilde.coyote6618]

Always great to hear from a specialist who knows metallurgy.

[@vroomvroom4061]

a tip for high carbon or tool steel like M series (molybdenum) heat treats, using peanut oil set at 140 Fahrenheit is great for beginners because it helps with the rapid cooling and escape of oxygen, which will prevent cracks.

[@jerichojoe307]

@Robert McConville I never understood the file checking when it comes to the hardness of your blade. A bastard file has a specific hardness so why doesn't it bite into hardened steel? That tells me that the hardened steel has reached at or above the hardness of the file. But that's where my question comes in; I have used a file to score and break glass before when I couldn't find my glass cutter and I'm pretty sure that glass is much harder than steel. I'm not doubting the method. I've used it before; but it just blows my mind how I can get a file to skate across a piece of Steel that's been hardened and yet I can still scratch glass with that same file that would not bite into the steel🤔🤔 it's weird. As a specialist; could you explain this? Genuine question. Not being a smart-ass at all.

[@airwilliam24]

@@jerichojoe307 depending on what kind of glass it is, a file is can be harder than the glass. A file is made of hardened steel.

[@Yeldineyintun]

This is hands down the best heat treat video I’ve come across. So easy to follow and informative without being overwhelming. Kudos man

[@CthulhuOO7]

I DIY everything, and would add this is one of the best vids - regardless of subject.

[@vidarsigrun]

I agree with this guy

[@chrispalffy3511]

@@vidarsigrun and I agree with this guy.

[@marcinzet7242]

Could not agree more. Love it!

[@billmixson3218]

One of the best I've found/seen in many years as a knife maker

[@santoslittlehelper06]

I'm just starting with forging, so I've spent a few hours learning about heat treating. This is by far the most actionable explanation of heat treating I've found. You have given us just enough metallurgical detail to explain why every step is so important without getting lost in the chemistry, and good benchmarks for beginners to look for. Bravo!

[@bareboneeccentrics921]

I am a small time blacksmith myself and I got to say this is one of the best explanation videos I've ever seen

[@padrino2182]

Most underrated and undersubbed account on KZbin. High quality videos

[@OUTDOORS55]

Thanks!

[@albertovelazquez4272]

Very good thanks 👌

[@KhaledAli-dk3zc]

True

[@tomwhite9188]

agreed

[@jomarz1828]

That's because they want people to pay to put their vids in everyone's suggestions...

[@billmixson3218]

The best heat treating video I've ever run across; video takes heat treating from normalizing to the tempering......well done!

[@j.k.roberts5288]

Been making blades for alot of yrs an heard alot of tutorials. You did good youngster top shelf. Keep helping these folks out. Just an old grunt.

[@OUTDOORS55]

Thanks for stopping by!

[@j.k.roberts5288]

No worries ill check in from time to time. Merry Christmas enjoy the forge an all it can tach you in the yrs to come.

[@davidscadlock5569]

I've watched this video several times. One of the best out there!! Clear & concise! Thank you - David

[@jocat2008]

I actually teach metallurgical science and this guy is exactly right! Education through experience....the best. Great job! Also a knife maker.

[@OUTDOORS55]

Thanks for the comment! 👊

[@robertvezina3669]

A Natural Teacher. Thank You for Patiently Sharing Your Experience Brother.

[@Paralius]

I came back to this video after making numerous successful blades using many methods. This is by far my favorite video explaining the process. I also would recommend playing around with O1 steel. It can have some incredible results! (Although some unintentional)

[@RIVERAEDGE]

Same here man! Praise to Mr Garland for providing us with quality content.

[@sebastiangustak2980]

As a metallurgy engineer, I approve the video with a like :D Nice clearly explained issues, and most importantly correctly. Best regards for the channel :)

[@Danfield1981]

I know this video is 3 years old. But I’ve learned so much not only from this video but all your other videos. The information is so easy to understand and your examples are clear and easy to see. Your videos have turned a passing as best interest into a full blown hobby of buying old knives and trying to bring them back to shape. I’ve recently started looking into making my fist knife. I truly hope you keep making these awesome videos!!!

[@therealsparkman]

I love your rudimentary brick forge. Not a complex build, but simple enough that a backyard hack can assemble one and not cost them a lot of money. Kudos to you for all this helpful information. Cheers!

[@johnjude2685]

Very excellent video Great audio ( thanks for being able to hear instructions and LOUD ROCK AND DRILLING OR WE DO HAVE GARAGE TOOLING THAT IS NOISY. BUT you treated me and others within ear shot nice and I adding a special thanks for your audio Sir. I've done a few with a fine and season of 40 plus years BlackSmith and he teaching me enough to get me Great results and much as shown by you "Sir Thanks "

[@williamknox8438]

Honestly, this is one of the best videos on heat treating I've seen so far. Not too much information, but enough that I feel confident to give it a try. Thank you!

[@gmacka6333]

Ive been watching your videos for years now. I live watching how you've evolved in this craft. Awesome.

[@canned__meat]

You're dead right about the process seeming quote intimidating. I am not a knife maker but, I love the idea and I am looking into the needed tools etc to get started. Your video helped me understand the basics a lot more. Cheers millions!!

[@OldNavajoTricks]

Random supportive comment time, any progress Pal?

[@canned__meat]

@@OldNavajoTricks - hey. Random support made my night, cheers! My life has changed considerably within the last year - year and a half. The idea of making the knives is still certainly something I am interested in but, it's on the backburner right now. Cheers for the message.

[@OldNavajoTricks]

@@canned__meat No worries man, I wish you well in all aspects of life, priorities though am I right? Life can change in seconds I know so hopefully you'll achieve your goals at the right time for you 👍

[@Northwite]

Amazing video. Simple, concise, exactly what a dummy like me needs to know. Thank you. So many forging channels don't ever really explain anything because they come from "watch me and learn" backgrounds.

[@jiyunotsubasaa]

Best video on the heat treating i've found on KZbin till now

[@paulselfe8139]

Thank you - a simple guide that actually works. Achieved a perfect hardness on a rasp file, which I've had problems doing in the past. Excellent guide for the novice knife maker. Paul - London UK.

[@ruger51995]

Thank you a straight forward video without hours of talking about things to think about and advanced theories. This just what regular guys have to get into. These guys who try to appeal to beginners lose their interest when they go into long stories. You even addressed that. Very great video

[@OUTDOORS55]

Thanks my friend! The advanced stuff can come later. I think it puts a lot of people off to knife making. Its not rocket science to simply Harden a piece of steel. If one wants to learn advanced metallurgy, theres plenty of info out there😀 Thanks for the comment my friend!👊

[@jbdolphinwolf5946]

Thank you for telling me this I haven't made any metal works yet but I am going to start sometime soon

[@paganpatriot4770]

just getting ready to heat treat my first blade.... it got too hot during the shaping and stock removal processes... so its required this time... thank you so much

[@tmber01]

I am not a knife maker and really don't have any aspirations to really get into it but I do have several tools (I am a woodturner) that have been overheated while sharpening, that I will attempt to heat treat rather than just throw them away. This is a very helpful instructional. Thanks!

[@caseymcpherson5658]

This is great for what I'm working with, as a beginner, I have the privilege of working with Steel in the "I have no freaking clue" carbon content range, which starts with supposedly mild steel and is increased in carbon content via carburizing flame with a blowtorch, a process that I can only hope is effective at making something useful with what is available...

[@jmsjms2735]

This isc100% golden - exactly what I needed to know before diving in. Great job, many thanks!!

[@stevenbean9706]

one of my best friends at GE now deceased worked heat treat . I learned a lot from him over the years a lot of people will heat treat properly but later fail to treat for hydrogen brittlement basically you bake the hydrogen out of the material its interesting to see a piece that isnt baked it has a very distinct look when you break it. over 24 years i picked up a lot of tips i enjoyed working in weld braze the most time went by sooo fast

[@Paul8259]

Thanks for the succinct video! In my forge; for annealing or normalizing phases, I heat a section of iron pipe, not brass or galvanized, in the furnace to the correct temperature then place the workpiece inside the pipe. Soak after reaching the steels' correct temperature for 5-10 minutes then air cool or turn off the heat, close up the forge and leave the steel inside overnight, depending on what softness you are aiming for. The most important consideration in normalizing or annealing is that the heat is as even as possible and that the cooling is as even as possible, but not too slow and not too fast. The pipe helps with this and reduces oxidation of the steel from a direct burner flame blasting it. Some use stainless steel foil to wrap if they have access to an temp controlled oven.

[@neumoi3324]

I came here by accident. I was looking for a cookery recipe but found this video 😆😆😆. Cooking is also like this you heat some, temper some, wait for it to harden some then cool some and then test (or taste). All the same. But you’re honest to the bones 👍👍👍.

[@coils1945]

NO MATTER WHAT WE DO! thank you for the video!!! Better than most

[@LaurelSchaafsma]

Great job. Conveyed in a way that I’m sure most people would understand. Really helpful and useful. Thanks a lot.

[@tylergenke7252]

I have been using w1 tool steel for making knives and chisels. I have not had an issue with hardening or tempering the steel. I feel it has better qualities than simple carbon steels such as 1080. i have used the chisels to split granite rocks and it only marred the edge slightly. The knives turn out nice with a long lasting edge.

[@OUTDOORS55]

Awesome god to know!👍

[@ozzmann3217]

Best common beginner version of this process I have found yet. Thank you for the info and video

[@OUTDOORS55]

Thanks for the kind words! I really appreciate it!

[@tomwhite9188]

i agree, just stumbled upon your videos as i am new to the knife making scene. several weeks of searcing for helpful info and usually end up get frustrated with the guys stammering on and on about stuff totally not on the topic of what they are supposed to be showing that i click off. YOUR videos however are truly helpful, without any wasted time or effort explaining. excellent job in teaching the basics. thank you

[@oldguy3525]

thanks, rewatch your videos multiple times.

[@kantrikoboy]

I seldom comment in you tube brother.. i am, being a moron on your field... you deserved a COMMENDATION for this video... it's an inspiration to those who aspires to be like YOU... Good Job.. keep it coming

[@mikelikesknives428]

This is a great video on heat treating. If you are interested in knife making watch this video. Thank you for the great info.

[@NapoleonBorn2Party]

This is the simplest heat treating tutorial i’ve watched. Great content! Please make more!

[@3DCGdesign]

Thinking about making a couple custom wood carving (little) knives at home, and am so glad to know we can harden them at home without anything fancy. Thank you!

[@jeffroyer869]

Looks like I’m not the only one saying thanks for the best heat treat video. Thank you You really covered it all and got right to the point you actually take the beginner to a level that we actually know something While doing this knife I ran into a guy that works for the same co I do but he is in the heat treat depart and was the manager He was impressed that I knew about all the steps and how to temper it as well No job offers yet but I’m not going there that place is hot as hell year round lol lol

[@outdoorlife5396]

Along a few classes I have taken, I use your video's. I enjoy them very much. They help me out with ideas and remembering things that I learned in class.

[@OUTDOORS55]

Awesome! Thanks for watching👍

[@pacificbushcraftandfirecra6358]

Excellent straight up information for heat treating. Well spoken and demo'd... TFS!

[@jonahtillman9499]

0:35 wtf did he actually give us enough time to read the "disclaimer." this shows he actually cares about the community. Amazing video, keep up the great work!

[@Durrtyboy]

thank you for making this video i got a forge and i want to mess around and make knives but i wasnt sure the steps for this and the info was kinda hard to find

[@88WhiteRhino]

10/10 pratical applicability. I hope you have a forge build

[@dylanri804]

Hey man thank you so very much for this video I have been over the web trying to find a video like this one because I didn't know what type of oil to use for my old winch a lot of people that make videos like this don't include what type of oil to use which was very hard for beginner like me thank you so very much please continue making detailed videos like this I really appreciate you man please keep on making videos God bless you

[@DevilONeill]

Great information you've given me here thanks

[@juanmanuelcosta3394]

Excelent video for beginners with simples terms about scientificts subjets.

[@hiimdominic3780]

It's neat to see that steel can be so delicate.

[@garrisong]

This is an amazing video I learned more from this than anything I’ve read or watched.

[@hungrycolby]

Great explanation on the whole process my good sir! This is very tricky to wrap the mind around, I appreciate you explaining it simply.

[@ernven6376]

From forge in fire fanatic and As a newbie ,I find it very helpful to understand even more.blacksmithting got my attention because I like doing things with my hands.its a learning process but you explain it crystal clear, hope you explain what kind of acid you use inorder to appear the Damascus pattern on the knife? Or make a video of it,t thank you good job

[@RIVERAEDGE]

Ferric Chloride is the acid used to bring out Damascus🙏

[@ernven6376]

Thank you 😊

[@shaunmcdaniels2460]

Thanks for the video!!! You answered several questions that I have. I also picked up a few things just watching you shop setup… I do have a question about hardening and tempering stainless steel. I know it not the same animal and I have wondered if it possible to do at “home” and how would you do it??? No one ever talks about stainless…. Thanks again for the video!!! I was able to understand the process in the way you talked about it!!!

[@gemunujayasinghe618]

Sir , thank you so much for sharing your knowledge . I am from Sri Lanka .

[@sgnsibande4606]

Thanks for sharing this with us

[@mrPauljacob]

Wow dude I love how simple and effective your forge set up is. And the way you heat the oil as well.. nice and simple

[@AGRussellKnivescompany]

Great video! Really well done and well presented. Thoroughly explained with visual details, thanks for sharing!

[@davidbacheler1399]

Great information! Thanks.

[@johnsandusky6672]

Best video on this subject anywhere!

[@h1tm4njw]

Your videos are perfect easy to understand straight forward. Thank you sir I keep finding myself looking up new stuff and your videos are number one. Keep posting!

[@RedWest2010]

Incredibly helpful. THANK YOU

[@danunger3240]

Pretty good explanation of the processes, without being confusing.

[@reiprieto7142]

I love your channel. This is a great video on heat treating! Thank you so much for making it. Your insight is much appreciated.

[@TrevorDennis100]

Excellent video. Informed useful content, and this is coming from a retired toolmaker.

[@ronemtae3468]

I want old guy getting ready to retire and I thought this would be an interesting hobby to get into I’ve never heard of oil being heated up videos amazing I’m gonna take an old saws all blade for my first attempt is that the proper steel

[@m0m0n53]

In know this video has been 3 years ago but this is very good for beginner...easy way to know.

[@robertgolden1080]

Outstanding video. Quick. Informative and to the point.

[@kaidendecastro6038]

This video is very well explained the steps by steps procedures. Well done to you and god bless.

[@jonkwilloughby]

Thanks! Very helpful!!

[@smartpuff7389]

This was great for my school project 😁 thanks a ton, this video led to my first knife ever actually being effective

[@delanezdelanez5253]

Good work. Nice tutorial!

[@keikorosu7853]

Thanks dude i've always wantd to make a knife no matter what but i didnt know anything about heat treating, now it seems really easy

[@jackdorsey4734]

Thank you for answering a lot of questions I had

[@rickwhitten2872]

Very good explanations. Easy learning - is what it's all about. Thank you.

[@BEDECE]

Thank you for the clear explanation Alex. This video is exactly what i was looking for to get more familiar with heat treatimg knives. Great video, thnx!

[@xj9779]

Nicely explained a little tip for you heat up the tang first and then turn it around and do the blade especially when you have only a little forge chamber, so the heat is more constant. I saw the blade was hot but the tang draws away the heat to fast so you could get a soft tang.

[@brenlyd]

This is great, I was hoping to see instructions on how to build this rocket stove. It looks simple enough but..

[@mbenjamin292]

This is it I hafto get a knife from you and try your blades out.Thanks for all your hard work.

[@sniperbuddydex6970]

i watched this for like 1 minute [only important parts] and i made nice sword because i didnt know what steel would i buy or how to harden steel so i bought 1080 steel plate and just grind my sword, sharpen it and made grip and handguard.. after that i normalized and hardened the blade and thats all so thank you

[@davidwood1923]

Good Information... Thanks for Sharing

[@lapatriot9268]

Excellent video!

[@Willrift]

I love you bro Now i have to do this with my new project

[@Volt64bolt]

My first attempt completely failed, but my most recent attempt I just used a simple log burner and got it to a nice deep red glow, sadly I didn’t have any canola or vegetable oil so I used motor oil. I dropped in a few heated scraps of steel to warm it before I put my knife in, then I just put my knife in the oven whilst baking a pie! Got some tasty food, and a nice heat treated blade!

[@levirodgers4087]

I would like to add in a note for the oil quenching. An old fella told me a technique that learned from an even older fella. He said when quenching count in 1 Mississippi 2 Mississippi or however long you leave in. Make sure that you take it out for that long and repeat the process. He said it cuts down the bubbles and air pockets that are in the metal and oil. He said never leave it out for to long and go back in because it can cause stress and potentially cause factures. Anyways I hope this helps anyone out in starting there own bladesmithing have fun be careful and don't burn down anything that you want the insurance to pay for.

[@Chillinjjv]

Thanks for the information

[@malcolmmurray9490]

Very informative and helpful. Thank you.

[@williammoss4828]

Super useful video. You have an excellent style of teaching. 👍🏻

[@abdulah-s3753]

Best video of heat treating

[@SequentialSEAN]

Mad video heaps easy to understand

[@RealMycoNation]

Great job! We'll taught.

[@yager4092]

Your amazing. Thank you I'm not as intimidated as I was. Yes I'm going to try this. Thank you

[@maninthemirror8746]

precise & straight up information ! thanks!

[@iLL_Corvo]

Thanks man. This video is what I needed for creating a cheap and practical forge

[@e.t.preppin7084]

I bought my evenheat oven about when you made this video. I finally hooked it up to my panel box a couple days ago. To HT 1084 what temp should I set and how long should I hold or soak. Thanks. I’m glad I came across this video. As I was trying to study up online how to work this oven you were the first person that came to mind to ask a question or two or 50. 😂

[@OUTDOORS55]

I use 1475f, no soak is necessary with 1084, and temper to desired hardness. 🙂

[@glitched4070]

Great video thank you 👍

[@therealjamespickering]

Great video. Definitely bookmark this to refer back to.

[@modlife9822]

Great video! I will be using this for a few great ideas. Thanks man!

[@djericanthony]

That was one of my main things I was focusing on when I was on forged in Fire. I normalized 3 times