Heat Treatment -The Science of Forging (feat. Alec Steele)

  • Published on Jan 29, 2018
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Comments • 955

  • Jo Eltham
    Jo Eltham 42 minutes ago

    Gosh you talk so fast, were you in a hurry?

  • dene castles
    dene castles 5 days ago

    Your video is so informative thank you so much I always wanted to know this

  • Azhar Aurangzeb
    Azhar Aurangzeb 6 days ago

    Best video can you make it more simple because I am not educated please

  • shane
    shane 7 days ago

    Hahaha I cant believe you couldn't bend the last one. I would've had it done in no time. I've moved some crazy shit with hammers but I'm on the tools all day everyday.

    • Real Engineering
      Real Engineering  7 days ago

      Ooooh big strong man impressing everyone on TheXvid 😂

  • Tapirus Sbrabous
    Tapirus Sbrabous 7 days ago +1

    This guy speaks so much and so fast that I always end up with a headache after watching your videos. Think about it.

  • Michael Mullas
    Michael Mullas 8 days ago

    What about cycling the tempering tho ?

  • Salman Haider
    Salman Haider 11 days ago

    I want to copy this and make a hindi version of it.

  • Sarang Naik
    Sarang Naik 20 days ago

    You have any another channel ?
    If yes plz send link somewhere

  • Lucas Lucas
    Lucas Lucas 23 days ago

    Is it possible to make cheap knives better by re heat treating and temper

  • Kirkendauhl
    Kirkendauhl 23 days ago

    There's so much information here I'll have to watch this video at least a few more times before I can really understand what's going on.

    • Kirkendauhl
      Kirkendauhl 22 days ago

      Second time's the charm so far, definitely picked up more information than the last time when I was drowsy lol

  • uddin islah
    uddin islah 23 days ago

    Very nice

  • Jesse Myers
    Jesse Myers 25 days ago

    Great video! You know what your talking about and most importantly WHY you do what you do when working with steel. I see some people just "guessing" as to why they do what they do to the steel when trying to improve it. Thanks for the education!

  • Egg_Runner
    Egg_Runner 27 days ago

    Currently doing electronics and so far have mainly used breadboards, seeing them at the end of this video brought back my haunting memories of all those perfectly build circuits that didn't work because bread boards are terrible V_V

  • BarcaTalk
    BarcaTalk 27 days ago

    Honestly that was the summary of my third semester Materials Science class! The subtle compromise between ductility and hardness. Show of hands if you are a Mechanical engineering undergrad

  • Trajan Pripps
    Trajan Pripps 28 days ago

    At 0:54 you said you fail to tell why carbon has a huge affect on the steel’s strength, well here’s why: Carbon is a much smaller element (in actual size) than iron is. When carbon and iron are smelted together to make the steel, the carbon will fit into the spaces between the iron atoms thus making them much more resistant to physical change, aka plastic deformation. However, too much carbon (>2.1%) and the steel turns into what is called cast iron, this excess carbon in cast iron is also what causes it to be a little stronger but more brittle. That is why steel (

  • CJ 314159
    CJ 314159 Month ago


  • Andrew H.
    Andrew H. Month ago

    So happy you muted that other dudes voice. It looked like he was really spazzing out ,trying to explain!

  • Dean Jones
    Dean Jones Month ago

    thank you for this! After watching forged in fire I REALLY wanted to know what the hell was happenign in the heat treat!

  • quesder
    quesder Month ago

    A question about quenching in oil: why not all the oil in the container burn out? Thanks.

  • Artsofthewood
    Artsofthewood Month ago

    Goes to show that there is magic in the world.

  • Volker Siegel
    Volker Siegel Month ago

    The 200 degrees for tempering - which kind of degrees are they? They're not Kelvin, that's for sure...

  • Jeffri Ranger
    Jeffri Ranger Month ago

    I just upgraded my knowledge
    Thank you

  • John-Paul Mitchell
    John-Paul Mitchell Month ago

    I have wonderd about these materials for twenty uears since reading about them in a samurai sword forging book. Thank you for making it so easy to understand!

  • Earth Man
    Earth Man Month ago

    Say what?

  • maybe nah
    maybe nah Month ago

    NANI! THE F**K

  • Jose Antonio
    Jose Antonio Month ago

    Interesting information!

  • shashi do
    shashi do Month ago

    Good information. Thank you

  • Chris Collins
    Chris Collins Month ago

    Make mine from machine files.

  • All Tree Solutions
    All Tree Solutions Month ago

    This helped me 0

  • saquib sarwer
    saquib sarwer Month ago

    Make a video on carbon iron phase diagram.

  • Braddles Blue
    Braddles Blue Month ago

    The dude speaking in this video talks way way to faxt. It's like he's speed talking. Please slowdown and it would become much more enjoyable. Just saying.

  • NAMiK
    NAMiK Month ago

    Do you understand punctuation? There is some good information but it sounds like a fake ai just spouting shit. Pause for a minute and let the info sink in
    I can't process the info because there is no time for me to absorb what you are saying. Balaha de lahh lah leh lahhsa . Please just stop for a minute at the end of a sentence.

    • NAMiK
      NAMiK Month ago

      It really sounds like you are just trying to beat the world record for words per minute reading speed. and failing badly.

  • curtislee
    curtislee Month ago

    I like how you like using videos of Hong Kong

  • Santiago dos Santos

    Great video, only mistake I noticed, pure iron isn’t ferrite, it’s just pure iron. Ferrite IS almost pure iron, but it’s acutally a solution of Fe and 0.035% C

    • Aaron Washburn
      Aaron Washburn Month ago

      Ferrite refers to pure iron at room temperature as well as with alloying contents. To be more specific alpha-ferrite (there is a delta ferrite at high temp) just refers to the bcc form of iron present at low temperatures.

  • Michael Chapman
    Michael Chapman Month ago

    I've never felt more defeated by information overload than I do right now. I don't think I've ever heard someone say " wait, we're going to need a bigger graph"... its like you found a way to weaponize information because it just made my head hurt pretty bad

  • jadekayak01
    jadekayak01 Month ago

    learnt nothing

  • slim azraf
    slim azraf Month ago

    Is this a bowie knife

  • Dylan White
    Dylan White Month ago

    is it possible to make a sword using a combination of titanium and graphite

    • Dylan White
      Dylan White Month ago

      +Aaron Washburn sounds like fun in the future maybe

    • Aaron Washburn
      Aaron Washburn Month ago +1

      Dylan White well first graphite isn’t a metal. But also the two are used together in high strength composites, however those are laminates which are not meant to take impacts edge on. They are high strength, but again if you’re going to be hitting/impacting things you want a material that is hard and impact resistant. Titanium by itself would probably be better for this application than a composite of the two.

    • Dylan White
      Dylan White Month ago

      +Aaron Washburn a super car

    • Dylan White
      Dylan White Month ago

      +Aaron Washburn a super carrier in Poland is made of graphite and the sr71 is made of titanium so why not experiment with the 2 metals

    • Aaron Washburn
      Aaron Washburn Month ago +1

      Dylan White we’ll both titanium and graphite are relatively soft compared to steel so I don’t know that there would be much of an advantage in a sword.

  • Gonzalo Diaz
    Gonzalo Diaz Month ago

    love to see blacksmithing with engineering knowledge

  • Ghost Erik
    Ghost Erik Month ago

    1:28 hey, look! It's Pilkington! ...as it once ware... part of the show :3

  • Georgy Padalko
    Georgy Padalko Month ago

    Wow, what a collab!

  • Madesh Magendran
    Madesh Magendran Month ago

    Simply Fabulous!

  • YouTube guy 35
    YouTube guy 35 Month ago

    You lost me at this video

  • Pyrosiege
    Pyrosiege Month ago

    Definitely helped demonstrate the usefulness of what I learned in my material science class. Nice work.

  • ㄷㄱ
    ㄷㄱ Month ago

    Completing engineering

  • Andre L
    Andre L Month ago

    How long did you put the steel in the oven for 200 degrees to temper the steel. And do you have any recommendations on books on hardening and tempering steel? Cheers! Thanks for the video.

  • Dana-Leigh Macroberts

    loved the vid

  • Konglim Khoo
    Konglim Khoo 2 months ago

    i wish i have learned material engineering in a weapon forging workshop than a lecture theatre. A lot of the theory would have made a lot more sense. rather almost the whole class was asleep by the 3rd slide.

  • RenchesAndSords
    RenchesAndSords 2 months ago

    if you started with 1095 what would happen?

  • Steve Reinahrt
    Steve Reinahrt 2 months ago

    Love these videos. Very informative. Well done.

  • achillies40
    achillies40 2 months ago

    Alec is AWESOME!!! He is great to watch as he creates masterpieces from not much at all.

  • Katniss
    Katniss 2 months ago +1


  • Aragorn Elessar
    Aragorn Elessar 2 months ago

    864,444 views? Really? Like...there are people that understand this?

  • Tjhai Merchant-Eid
    Tjhai Merchant-Eid 2 months ago

    arduino has plenty of free tutorials
    don't pay for skillshare, this is meant to be an open community....
    other than that good tutorial.

  • Chris Harp
    Chris Harp 2 months ago

    I got lost on the 'ites' part

  • battlethebollocks Rodgers

    That's right that term is a dis-ease in language "fam", if you can't tell I'm on one with no plotted course. Isn't life grand!!!!!!!! P.s. you just got me back into my knife projects

  • battlethebollocks Rodgers

    Damn cool fam...? Why did I just use "fam" to address you and yr informed, and fun video? Dunno, but I asked my brown skinned friend about that term, and really had no idea of it's etiology. Anyhoo, we can thank Azazel, and the other fallen ones for metal knowledge in the first place.

  • GI D
    GI D 2 months ago

    I don't know how well you understand the material you present but the way you present it is very very confusing. I wonder if 1% of those who have watched the video would be able to explain why adding carbon to iron makes it so much stronger.

  • Jason Kemp-Sallis
    Jason Kemp-Sallis 2 months ago

    You just managed to explain that in 10 minutes much more clearly than the tutors I had over a 3 year course of blacksmithing

  • Judge Nutmeg
    Judge Nutmeg 2 months ago

    My bread knife started shouting at me (I think it lost its temper)

  • TheRegret
    TheRegret 2 months ago

    so whats the atomic structure of ulfberht swords? why is it described as "diamond mixed with iron" and what would the sheer face be? ulfberht swords are ancient swords of the vikings that still have a cutting edge even today more than 2000 years later. how do we make an ulfberht?

  • John Clarke
    John Clarke 2 months ago

    Would make my life if you made more manufacturing engineering videos

  • Patrick Erdei
    Patrick Erdei 2 months ago

    I've seen around 10 of your videos....your skill to transition from subject to sponsor smoothly, and somehow still stay on topic, is a legit talent ;)

  • acash93
    acash93 2 months ago

    Here is a list of other videos to complement this video:

  • acash93
    acash93 2 months ago

    This is such a great video for understanding material science. Thank you!

  • Adnan Shaikh
    Adnan Shaikh 2 months ago

    Awesome video! I liked it very much but it kinds difficult to understand completely because i am quite weak in this subject... Please make separate videos in detail ! Awesome video! 😇😇

  • vipul chauhan
    vipul chauhan 2 months ago

    Describe about iron carbon diagram in brif ..Nice video 😇

  • w wyborn
    w wyborn 2 months ago

    clickbait , thoguht this was 1000 degrees knife

  • P M
    P M 2 months ago

    Explained really well. Thank you.

  • hugh jasole
    hugh jasole 2 months ago

    Would i need to normalize if i didn't forge the steel? Meaning i used flat steel to begin with and just traced out a pattern and cut out the shape.

  • Mark Thijssen
    Mark Thijssen 2 months ago

    This is a very good video. Thank you for it. Myself I make video's about stuff I never tried befor and look if it is possible to do this at home. At this moment I am making a video in wich I am going to harden low carbon steel by carbonizing. If you want to give it a shot: thexvid.com/video/wCEEhQs3jZA/video.html

  • mark burress
    mark burress 2 months ago

    ThiS is why the first blacksmiths to make steel were considered magicians in some circles.

  • Carlo Clores
    Carlo Clores 2 months ago

    Do you have an engineering material book that you recommend for anyone interested in this topic?

  • Nick Lemon
    Nick Lemon 2 months ago

    jeesus alec steele is a tool...and not the good kind either

  • BimmerBros
    BimmerBros 2 months ago

    Magic! Got it. 😉

  • Diamond Liberty
    Diamond Liberty 2 months ago

    Das good shit. Thanks.

    NATURAL GAMER 2 months ago

    Being a mechanical engineer I learnt all these

  • William Dillard
    William Dillard 2 months ago

    Hey got a question, could you message me back, huge fan by the way. My question has to do with ancient metal works..might be a good theme for the channel..I know I would watch ...others might as well.

  • DragoTac
    DragoTac 2 months ago

    There really aren’t that many Steele named people I went to school with 2. funny? Coincidence? That this guys name is Steele and he’s a blacksmith

  • Zormac
    Zormac 2 months ago

    The beauty of the eron kerbon elloy :)

  • Murphy McPoyle
    Murphy McPoyle 2 months ago

    Is this where you burned him?

  • john graham
    john graham 3 months ago

    Top man

  • fydy dfhdhd
    fydy dfhdhd 3 months ago

    alec :p

  • Redchrome1
    Redchrome1 3 months ago

    Wow, the information density here is impressive. I've casually studied this stuff for years and it's still mystifying, but much less so now. I'll still need to watch this video a couple of times to understand it all though. :)

  • Kyle Simon
    Kyle Simon 3 months ago

    “Steel is the most important material”

  • Martin Perälahti
    Martin Perälahti 3 months ago

    Thanks for this video, I have a material engineering exam about metallurgy tomorrow :D

  • Dinesh V
    Dinesh V 3 months ago

    Really super I like it

  • Maisonier
    Maisonier 3 months ago +2

    What happens if you temper steel in the vacuum chamber?

  • Neil Wilson
    Neil Wilson 3 months ago

    I strongly advise watching the Bowie knife videos first, then watching this one. It's really helpful in understanding the process. It's also fun to see the bits they miss out in 'Forged in Fire'. Lovely stuff.

  • 20083500HD
    20083500HD 3 months ago

    why do people like to use celsius instead of fahrenheit when measuring temperature and the same for weight and distance people like to use the metric system instead of the imperial system like we were taught!!

  • YeastyGeorge
    YeastyGeorge 3 months ago

    Alec is the hottest Gay TheXvid Star! 😍 Such a great example of the talented LGBTQ community! I love you Alec! 🏳️‍🌈 Give Will my best! You guys are an amazing couple ❤️

  • Ben Williams
    Ben Williams 3 months ago

    I still dont understand each heat treatment. Why does it act/end different during each subsequent heat treatment? I don't understand what independent variables have changed in order to change that desired outcome. i.e if you want to cool it fast so it can form globs or what have you, then why not do that treatment from the start? is my thinking that I cant wrap my head around

    • Ben Williams
      Ben Williams 3 months ago

      +Aaron Washburn Thanks. I guess that explains it pretty well. I suppose I was confused by each step kind of doing the opposite to one another. You watch one vid and someone says 'time to heat treat it to make it harder'' and the next vid the guy goes 'time to heat treat it so it's not so hard'

    • Aaron Washburn
      Aaron Washburn 3 months ago

      Well I guess to begin answering the question of "why does it change" it should be recognized that the chemistry of the steel dictates the final structure of the steel and how it needs to be heat treated. So if you look a single steel composition and how it changes with various treatments there are particular structures, mostly martensite, that require the steel to be taken to a fairly high temperature then quenched. Martensite is a really hard phase that gives *most* steels their hardness and strength. But this phase is technically not a stable phase (crystal structure), so the only way to form it is to cool the steel really fast which usually involves bringing the temperature of the steel back to room temperature.
      So once you've formed martensite your steel is really hard but also really brittle. So you need to perform a second heat treatment (at a lower temperature than you used to form the martensite initially) usually for a couple hours which causes the martensite to change to the more stable ferrite and cementite phases. This is called tempering and it removes some of the hardness and strength, but increases the toughness and ductility of the steel. If you don't temper long enough you'll still have a relatively brittle steel, if you temper too long all that unstable martensite will convert to the softer ferrite and cementite phases and you'll lose your hardness and strength. The mechanism underlying all these changes is that carbon is not really soluble in iron, so when it's added to make steel, a range of different phases can form which work to accommodate the existence of the carbon. All of these phases have their own mechanical properties that can be taken advantage of and erased/formed by heat treating. I'm not sure if that really answers your question.

  • Tyler Mellinger
    Tyler Mellinger 3 months ago

    My Materials professor linked to thing video!

  • Loek Lodewijck
    Loek Lodewijck 3 months ago

    What? Ahhhrmer?

  • Jacob Kellerman
    Jacob Kellerman 3 months ago

    So, with all this science; what's the best blade steels, and best steel for like shovels? I'd like to make all demascus, so multiple types are needed. Right?

  • Jetoler
    Jetoler 3 months ago

    Brain hurt ow only 4 brain cells left oof ouch tv time yay

  • hemant desai
    hemant desai 3 months ago

    This video is mind blowing 👍😍😎😃😄🙂😘🥰😍👩🏻‍🦰🔥☄️💥

  • Joshua David
    Joshua David 3 months ago

    this was a pretty awesome vid, as i 've been subscribed to alec steele & smarter every day channels for awhile, please keep up this wealth of information flowing & thanks to all you guys

  • John Brown
    John Brown 3 months ago


  • Pablo Crespo
    Pablo Crespo 3 months ago

    Excellent video, thanks!