Types of steels

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  • Опубликовано: 30 июн 2024
  • Not all steels are created equal. Find out what the differences are and what to expect from different steels. Learn the meaning behind the terms used in marketing to find suitable products for your projects.

Комментарии • 222

  • @djstanstillmke
    @djstanstillmke 8 лет назад +3

    thank you for making this video. Like a good professor should, you presented information clearly and without excessive detail. It will make it easier for a machinist's wife to understand why I'm irritable on "A-2 days".

  • @michaellapierre1244
    @michaellapierre1244 6 лет назад +4

    Thanks for pairing real-life examples with the classifications. Very informative!

  • @allanrobichaud5821
    @allanrobichaud5821 7 лет назад +6

    I am to begin a course in Steel Fabrication at our local community college. I know nothing about steel - this was well presented and very helpful. I hope my instructors are as "tuned-in"!

    • @theoverengineer
      @theoverengineer  7 лет назад +4

      Unlikely. In broad terms and with quite some simplistic generalizing,
      1 Most instructors are journeypersons, who end up teaching. They are not teachers. Neither are they engineers, metallurgists or chemists. They never upgrade with college courses either, most colleges don`t pay for such upgrades for staff. They want to run the business with minimal spending.
      2 Metal fabricators calculate and fab stuff out of 1 type of steel - or so. Their curriculum does not cover anything covered in my video. Instruction about metals is limited to a "Do this, this will work." approach.
      3 Your instructors are likely to be seasoned pros who are in fact excellent Metal Fabricators. Enjoy math, have fun throwing some sparks, discover and learn beyond the textbook minimum.
      Thanks for watching.

    • @theoverengineer
      @theoverengineer  7 лет назад +1

      Welding gear review from class: ruclips.net/video/ImrFAmzF5Ns/видео.html

  • @nfcopier1
    @nfcopier1 8 лет назад +1

    Thank you so much for taking the time to make this video! I'm an engineering student planning to do some garage projects, and I found this video extremely informative for that.

  • @waynepowell567
    @waynepowell567 3 года назад +1

    Excellent presentation. This is an area that has very little coverage. I really appreciate your video on this fascinating subject. Thanks for taking the time to share this.

  • @niklnikl1
    @niklnikl1 2 года назад +1

    Excellent video explaining types of steel and their uses. Thank you!

  • @RelentlessHomesteading
    @RelentlessHomesteading 7 лет назад +2

    That was a good primer on steels. Thankyou. Seems increasingly difficult to find tools made from proper steels anymore - what is cheap sells the most; so we have ourselves to blame.

  • @ronfox5519
    @ronfox5519 Год назад +1

    Bravo! Very well done. Thanks for sharing this with us.

  • @jaseberry6311
    @jaseberry6311 8 лет назад +8

    Loved the tangible examples, thanks +theoverengineer!

  • @maximumiq158
    @maximumiq158 7 лет назад +9

    excellent walk through and brush up. I'll be more alert now when looking at tools and equipment. thanks.

  • @dragonmaster9360
    @dragonmaster9360 5 лет назад +2

    Excellent presentation. Well worth the time spent watching.
    Well spoken, easy to follow and understand mostly because of the "real world examples" that I have always seen but never understood . Thank you for taking the time to make this video. I am new here so perhaps I just haven't seen it yet but would like to see a video comparing the various high end fixed blade combat / bush knives.

  • @aaasktube
    @aaasktube 10 лет назад +2

    Thanks for your time to explaning typs of steel ...i like it ...keep up

  • @paragangal
    @paragangal 7 лет назад +7

    Very Informative...like it

  • @richardvermeulen3123
    @richardvermeulen3123 10 лет назад +2

    Great lesson. Just what I needed. Thank you very much!

  • @AvivMakesRobots
    @AvivMakesRobots 2 месяца назад +1

    Great inspiration, thanks!

  • @magnodvd1971
    @magnodvd1971 6 лет назад +3

    Informative and helpful, thank you!

  • @sanjaijain
    @sanjaijain 5 лет назад

    It's really nice , simple and quite a broad insight. Thanks for your efforts.

  • @martinda7446
    @martinda7446 6 лет назад +1

    Very entertaining and delightfully presented. Excellent and no bullshit at all.

  • @charltoncarswell9977
    @charltoncarswell9977 7 лет назад

    You Rock at this. Thanks for the videos! Thanks for making it easy for a simpleton like myself!

  • @haroldwestrich3312
    @haroldwestrich3312 8 лет назад

    Thank you so much for the detailed explanation. I believe you are very knowledgeable on the subject. This has helped me a great deal in choosing the material for my project.

  • @chinwakebhai
    @chinwakebhai 10 лет назад +2

    Excellent video. I like your presentation style, and precise technical language which you relate to everyday items around us, such as nails and tools, etc. I'm certainly enlightened by the information.

  • @shaunzhu331
    @shaunzhu331 9 лет назад

    Thanks for the video mate, it helps a LOT.

  • @Borascythe
    @Borascythe 9 лет назад

    This was incredibly informative. I learned a great deal about a topic from watching this video that I was completely uninformed about before watching.

    • @theoverengineer
      @theoverengineer  9 лет назад

      Thanks for the feedback. I very often indirectly refer back to this video or use terminology from it. For a recent example, check out: ruclips.net/video/PkT56_Yw_sk/видео.html

  • @stevefriedlander7053
    @stevefriedlander7053 7 лет назад

    Thank you. Well explained and very helpful information!!!

  • @idomake4429
    @idomake4429 8 лет назад +1

    One of the most informative primers on basic steels I have seen. I would recommend getting some help from someone with some videography and editing experience polish it up a bit. That said, very good information if one can stay with it. Thank you for your work.

    • @theoverengineer
      @theoverengineer  8 лет назад

      +Idomake Thanks for watching. These videos were shot on-the-spot to replace the expanded set-up in class. Definitely not HD, not anything, just holding camera with one hand while trying to work with the other ... If you know anybody sponsoring educational development, send them this way.

    • @theoverengineer
      @theoverengineer  8 лет назад

      Sure do. What kind of knife? Scalpels get thin and superhard, bushwacking knife gets chubby and impact resistant.

    • @theoverengineer
      @theoverengineer  8 лет назад

      Oooookaaay. Usual work flow is: find steel chunk, heat treat, draw knife design out, cut out shape, heat treat again, fit handle. I recommend a generic knife heat treatment sequence from Bob Loveless`s book Knifemaking p.57, 66:
      1 Annealing Heat thoroughly to at least 1400 F (760 C) or past the Curie point, then let cool slowly in vermiculite or in an oven over a 12-hr period, not faster. After the grind, bevel and taper are done,
      2 Heat up to same high temperature, quench in a barrel of cold oil, brine or water, clean blade, temper at 350 F (177 C) for 2 hours, then let cool in air to room temperature on its own. (No fans)
      It will be hard enough to hold a fine edge and not too brittle.

  • @WXUZT
    @WXUZT 3 года назад

    Thank You for your effort and time !

  • @Dornatum
    @Dornatum 8 лет назад +1

    a very good video. I feel enlightened

  • @gaggemums
    @gaggemums 6 лет назад

    Thank you very much sir! I have been wondering for some time now what all the letters and numbers stand for. Excellent explanation!

  • @thinklearngrow1
    @thinklearngrow1 7 лет назад

    you are great sir, the video is just worth saving and watching again and again. you channel is like an angle helping to learn the things. My Mechanical engineering materials course even failed to impart this much knowledge. watching first of your video. hope to get more of this kind on this channel.
    Thanks again.

    • @theoverengineer
      @theoverengineer  7 лет назад

      Thanks for watching. Here is my playlist of related videos ruclips.net/p/PL9cPDQOOfTepp8sSTY7xoGsAmX5MUf-aS There is also a weldability spin on types of steels, ruclips.net/video/ZMgNY-hKp6o/видео.html and another playlist on steel and material failure ruclips.net/p/PLtsCbF7YOOwjLGSfkPQGBxoFkVyFNUotZ

  • @ShakilAhmed-oc7mf
    @ShakilAhmed-oc7mf 8 лет назад

    Thank you sir...its really informative. Its clear my basic concept about steel.

  • @mbs100k
    @mbs100k 9 лет назад

    Thank you so much, you helped take out a good bit of mystery. Very informative, and well instructed.

  • @seanwolfe9321
    @seanwolfe9321 3 года назад

    Great basic layout! Do I want more depth? Yes, you are great and simplifying a somewhat confusing system. Thanks much!

  • @constantinosthrasyvoulou2553
    @constantinosthrasyvoulou2553 Год назад

    Excellent presentation. Thanks

  • @foundyet
    @foundyet 6 лет назад

    Thank you! This answers my question about HSS as I bought some wood lathe tools and they were labeled as HSS.

    • @theoverengineer
      @theoverengineer  6 лет назад

      Nice, tell us how they last and sharpen when you get to it.
      Thanks for watching!

  • @JimmyKHall
    @JimmyKHall 10 лет назад +8

    Well done! well thought out and helpful.

    • @theoverengineer
      @theoverengineer  10 лет назад +1

      Thanks for watching & feedback.

    • @JimmyKHall
      @JimmyKHall 10 лет назад +1

      No problem, what is it that you do. You seem pretty knowledgeable about metals, yet you do a lot with bikes to. Just wondering?

  • @rudimarth5004
    @rudimarth5004 10 лет назад

    Learned a lot,Thanks. Rudy

  • @MrDunk66
    @MrDunk66 8 лет назад

    Superbly simple presentation of information and clearly delivered. Really enjoyed the tutorial. Learn't a lot. Now when I visit the foundry I will know what they are talking about 👍 Thanks for sharing.

    • @theoverengineer
      @theoverengineer  8 лет назад

      +Dunk O Idea: Shoot some video at that foundry, upload and link it with this. Thanks for watching.

  • @wakefieldyorkshire
    @wakefieldyorkshire 9 лет назад

    What a brilliant informative down to earth lecture this is; i know i will keep watching this lecture over and over. By showing simple everyday products that we use you are makeing it easy to understand and are also managing to keep your audiance wanting more and more.

    • @theoverengineer
      @theoverengineer  9 лет назад

      ***** Thanks for the feedback and watching. Questions, ideas? Let me know.

    • @wakefieldyorkshire
      @wakefieldyorkshire 8 лет назад

      It might make for an Informative video if you could do lecture on nut and screw threads, just a thought.

    • @theoverengineer
      @theoverengineer  8 лет назад

      +wakefieldyorkshire I`ve got this: ruclips.net/video/fov8nPzOI6M/видео.html on another channel. Keep digging around, some are more geometric, some are more calculation focused, such as this:ruclips.net/video/L99lnAqVK1A/видео.html

  • @murtazamurshid
    @murtazamurshid 6 лет назад

    Thank you sir for the great explanation of basic of steels. This video is useful for students and for industrialist as well.

    • @theoverengineer
      @theoverengineer  6 лет назад

      Thanks for watching, I have other steel titles as well, just type "steel" into the channel`s search bar.

  • @sreyassriram8077
    @sreyassriram8077 6 лет назад

    Great Video! Thanks a lot .

  • @LTDANMAN44
    @LTDANMAN44 Год назад +2

    I came here because i was watching an 80's wwf wrestling match and randy savage hit champion tito santana with a piece of "cold rolled steel" and knocked him out. I needed to find out what that ment

  • @moypatel5554
    @moypatel5554 7 лет назад

    Thank you for your knowledge

  • @Ninz306
    @Ninz306 9 лет назад +4

    24:59 well spent... Thank you sir

  • @allanrobichaud5821
    @allanrobichaud5821 7 лет назад

    Good points. I'm still hoping for some quality teaching. At 69, retired from a non-trades area for 9 years, I'll need all the quality help I can get. Thanks for the feedback. I'm subscribed.

  • @glcboxer2012
    @glcboxer2012 9 лет назад

    Nice video! Well prepared. I liked the examples of items made from each steel type. that really helped! God bless.

  • @shiyaskollam
    @shiyaskollam 7 лет назад

    Thank you very much..Nice and simple way of presenting ..very clear accent to understand for people from any area of World..Thanks..
    Please do more videos like this about related subjects..more deeper..

    • @theoverengineer
      @theoverengineer  7 лет назад

      Thanks, there is more on ruclips.net/user/apprenticemath

  • @MephistoRolling
    @MephistoRolling 9 лет назад

    great video, thank you very much.

  • @vijaypriyaa8754
    @vijaypriyaa8754 6 лет назад

    Very good explanation.... Thanks

  • @Toho2782
    @Toho2782 5 лет назад

    Thank you for your time great video

  • @rhythmandacoustics
    @rhythmandacoustics 6 лет назад

    Excellent, especially how to spot fake or over claiming items on the market.

  • @arindammaity9603
    @arindammaity9603 8 лет назад

    nice video it makes all easy

  • @dadricriggs
    @dadricriggs 10 лет назад +3

    Thanks for the Lesson.

  • @Gabriel1o1
    @Gabriel1o1 9 лет назад

    thoroughly enjoyed it thanks

  • @kingco-bruh7271
    @kingco-bruh7271 5 лет назад

    Great stuff

  • @SarcastSempervirens
    @SarcastSempervirens 8 лет назад

    thank you for this!!!

  • @craigmunday3707
    @craigmunday3707 6 лет назад

    Awesome lesson thanks

  • @essam1816
    @essam1816 10 лет назад

    Thank you so much for this useful video

  • @theoverengineer
    @theoverengineer  11 лет назад +6

    Steel manufacturing is somewhat limited to - steel. With chemistry degree I would shoot for a bigger pie, metallurgy. Bettering steel for extreme applications (space, underwater, military) has been tried from all angles, new discoveries are made in composite metals, like Ni-Ti, Bi-F, Pt-Cu - just throwing out some letters there. Invent a kichen knife or drill bit that never needs sharpening, body armor that weighs nothing or vehicle body that weighs nearly nothing. Play with the patterns.

  • @IvanZ88
    @IvanZ88 9 лет назад

    Thanks a lot for this video! You presented very well many types of steel with good example and costs. What I miss for my project is the weldability of kinds of steel, the hardening (how hard is the particular steel after hardening and before) and the surface treatment. If you will have another video on that, that would be great!

    • @theoverengineer
      @theoverengineer  9 лет назад

      Ivan Levels of hardness is produced by either
      (1) "cold work" - forming, bending, extruding, ...
      (2) "alloying" - carburizing, nitriding, high carbon steel, alloy steels, tool steels ...
      (3) "heat treatment" - quench & temper, anneal,
      Mild steel is weldable, anything alloyed (Carbon or anything) is tricky or impossible
      Some ideas are embedded here: ruclips.net/video/7wIySgYHW44/видео.html
      or here ruclips.net/video/yxAde_kh0LE/видео.html
      or here ruclips.net/video/39ahpcfWOEM/видео.html
      Just type in keywords "brittle" or "ductile" on my channel, see what comes up. I guess I can make a comprehensive video on what I just typed up, too. I`ll think up some visuals for it.
      Thanks for watching.

    • @IvanZ88
      @IvanZ88 9 лет назад

      theoverengineer You're awesome! Thanks for the info!! You were a big help!

    • @theoverengineer
      @theoverengineer  9 лет назад

      Ivan bitte schön

    • @IvanZ88
      @IvanZ88 9 лет назад

      theoverengineer spasibo

  • @EdSchneeebly
    @EdSchneeebly 11 лет назад

    Fantastic video! I'm really interested in steel manufacture in industry, and am considering doing a Masters in Chemistry, possibly a PhD in Chemistry after the masters. What sort of opportunities do you see for someone with those qualifications in the Steel industry, or any related industries? Obviously i have been doing research, but all information can be valuable. Really good video, nice and comprehensive and well thought out, cheers

  • @Joebunkyss1
    @Joebunkyss1 8 лет назад

    great vid....i use axles to make masonry chisles.....cut with a grinder and ground on a wheel.

  • @EliteTKDAust
    @EliteTKDAust 2 года назад

    Thanks, great video

  • @umakanttoge8855
    @umakanttoge8855 5 лет назад

    Very nicely explained

  • @seandillon7265
    @seandillon7265 9 лет назад

    Thank you, good explanation :-)

  • @1938vw
    @1938vw 7 лет назад

    Thanks buddy, very handy

  • @iancho9587
    @iancho9587 7 лет назад

    Well done Sir

  • @radon222u
    @radon222u 3 года назад

    Great video. Could you suggest materials for loudspeaker core structure (top plate and T-yoke)?

    • @theoverengineer
      @theoverengineer  3 года назад +1

      Never worked with speakers, no clue whatsoever. Thanks for watching, though!

  • @smith951
    @smith951 10 лет назад

    Wow super helpful ty

  • @jimp6576
    @jimp6576 2 года назад

    Thank you, now I know more than l did.

  • @murtazamurshid
    @murtazamurshid 6 лет назад

    One request to you that can you make video on explanation of similar composition steels on different standards.

  • @ramukaka492
    @ramukaka492 4 года назад

    Very good lecture sir

  • @rohansharma1118
    @rohansharma1118 10 лет назад +2

    hey buddy ..video is really helpful..
    can you make a video in which you describe all type of steel available in market and how they are known like hss 18-4-1

    • @theoverengineer
      @theoverengineer  10 лет назад +2

      Sure, thanks for the idea. Will send as link.

  • @rahulsoni5459
    @rahulsoni5459 7 лет назад

    Awesome 😃

  • @marvmeyer9026
    @marvmeyer9026 8 лет назад

    good job

  • @Mr_Secrate__
    @Mr_Secrate__ 9 лет назад

    Hi dear sir will u attach data sheet which u showing in this video. It is very useful and easy to keep in mind after watching video. I will attach it with my notebook. While doing study i will use it for reference. Thank you.

  • @chrisplayz253
    @chrisplayz253 6 лет назад

    That was v interesting bro 😃

  • @reddragon6317
    @reddragon6317 6 лет назад

    Really helpful

  • @rajno17
    @rajno17 9 лет назад

    I just watched your video.. very informative!! Thank you so much..
    But i have one doubt if you don't mind in clarifying, we use some terms like Plain carbon or mild steel, how does these get into the steel grades explained in your video?
    Thanks in advance!!

    • @theoverengineer
      @theoverengineer  9 лет назад

      Kanagaraj Subramanian Plain carbon steel = low carbon + medium c + high c groups, mild steel = higher end of low carbon nut not as high as medium carbon steel. In North American standards by SAE/AISI (differents from British, Japanese or German standards) the carbon content in low c = 0.05% - 0.3%, mild steel = 0.15% - 0.3%, medium c = 0.3 - 0.6%, high carbon = 0.6 - 0.9%. By definition steel can contain 2.1% carbon, but it does not make a practical difference if a steel is 1.3% c or 2.05%, so nobody makes steel over 1% C. All % is by weight.
      What steel designation numbers mean (1080, 4150)
      ruclips.net/p/PLtsCbF7YOOwjLGSfkPQGBxoFkVyFNUotZ

  • @mrabhi100k
    @mrabhi100k 8 лет назад

    Thank you sir.

  • @RuDyCaM81
    @RuDyCaM81 8 лет назад

    Great video! thank you! Question: I just got a Cold Steel Katana, what does the 1055 Carbon mean?

    • @theoverengineer
      @theoverengineer  8 лет назад +1

      +Rudy Cambara Chemistry-wise 0.55% carbon is in the steel which makes it hardenable by heat treatment (power sharpening can destroy it), has some give and not super brittle. Will rust right away unless protected. It was probably cheaply cast in a mold with no sign of going through upset forging.
      Physics-wise a katana`s making, center of gravity and weight distribution are just us important.

    • @RuDyCaM81
      @RuDyCaM81 8 лет назад

      +theoverengineer Thank you for responding so quickly!

  • @johnnymotorboat8824
    @johnnymotorboat8824 4 года назад

    Rebar is usually high carbon. Hammers are tool steel usual w1 or o1.

  • @HollywoodCreeper
    @HollywoodCreeper 7 лет назад

    What is the best steel for a pot to cook with if I wanted to buy the best?
    A lot of poor Hispanic people in NYC and other people have this low quality cookware that is not brand name. I find it in abandoned storage units and sorry yard sales. The metal sucks. I need to use a big pot to cook some pickled beets, and I happen to have one of these cheap big 'poor person' pots. Using one of these 'poor person' pots under heat, do you think sulfur and phosphorous will slightly leach into the food?

  • @riccardoruta5006
    @riccardoruta5006 6 лет назад

    thank's man!

  • @NOBOX7
    @NOBOX7 9 лет назад +2

    your awsome homeboy thanks for posting this video , you saved allot of us time,,,subed

  • @benevans7764
    @benevans7764 5 лет назад

    So you mentioned that some tools are made of medium carbon steels if they are intended to be resharpened. But stainless steels and high speed steels are more durable so they may not need to be resharpened. If I wanted to make an axe head, what type/grade of steel do you suggest?

    • @theoverengineer
      @theoverengineer  5 лет назад

      Axe head :
      Most durable materials: 316 stainless, a.k.a. 14-12 stainless, does not hold an edge
      Best edge retention material: tool steels, including high-speed steels, none of them are resistant to corrosion
      The edge has to withstand shock or impact loading without shattering and chipping. Medium carbon steel is a reasonable material, since having an edge is more important than resistance to corrosion.
      Axe needs to be made with forging, in a forging press under thousands of kg or lbs of pressure, at a forging temperature. Without the right method at the right temperature, an axe head could be shaped but won`t work as an axe. Just a decorative mantelpiece.

    • @benevans7764
      @benevans7764 5 лет назад

      theoverengineer. So a simple blacksmithing forge to heat the metal and 2 lb hammer should suffice? With heat treatment and tempering of course

    • @theoverengineer
      @theoverengineer  5 лет назад

      Give it a go, see how it turns out, chop some wood, shoot a video and tell us about it.

    • @benevans7764
      @benevans7764 5 лет назад

      theoverengineer thank you for the advice. This is very helpful

  • @nazimsaifiartwork
    @nazimsaifiartwork 6 лет назад

    GOOD BRO

  • @KrisMinnear
    @KrisMinnear 3 года назад

    That 1045 sprocket should probably be with the medium carbon category.

  • @camilewis87
    @camilewis87 11 лет назад

    Where can I get these steel documents in your video?

  • @banno6938
    @banno6938 9 лет назад

    Interesting video !
    Can you please explain the difference between H2o & oil quenching on steel ?
    I have also seen stamped on commercial type steel Truck frames that they should not be welded .
    In your opinion is there any way to properly weld a broken or cracked frame with that stamping ?
    Thank You .

    • @theoverengineer
      @theoverengineer  9 лет назад

      During quenching the microstructure of steel changes. In quenching, red-hot steel`s microstructure called "austenite" turns into "martensite', regardless of the quenching medium. (Brine can also be used). Martensite is extremely hard and brittle. Water cools faster, oil cools a bit slower. In water quienching, more of the austenite forms martensite, and less of it forms pearlite - a softer form of steel. In oil cooling more pearlite forms and less martensite, so the finished steel is more ductile, less brittle.
      Welding changes the microstructure of steel around the weld, all martensite and pearlite will transition into "ferrite" a very soft and weak form of steel (nails, rebar, roof flashing). In addition, all the fine dissolved carbon runs and clumps together and solidifies into streaks and layers of graphite (same stuff in pencils). It just breaks right there, graphite has zero strength. Even if the weld is quenched somehow to form martensite, graphite layers will still form, it is not reversible and be a weak layer in the weld area. So: it can be welded, it just won`t hold. Like trying to weld the claw back on a hammer, pretty until you pull a nail and breaks 10 seconds into it.

    • @NOBOX7
      @NOBOX7 9 лет назад

      i have herd oil quenching ads carbon to the metal this also makes it harder

    • @theoverengineer
      @theoverengineer  9 лет назад

      NOBOX7 Laying steel in a charcoal bed for 4-10hrs will add a quarter of a single percent of carbon to the steel, to a depth of 5 -10 microinches, a 45sec oil quench does nothing. Added carbon only makes the steel harder at the depth of the added carbon, microscopic amount of surface hardening. Done on gear teeth and shafts commonly.

  • @donnyfward
    @donnyfward 9 лет назад

    Very informative. I enjoy learning about metallurgy. What does the designation 304 mean as it pertains to stainless steel? That's a Great video.

    • @theoverengineer
      @theoverengineer  9 лет назад

      donny ward digit 3 means "austenitic" stainless group, and 04 is just sequential, the 4th mix. Non-magnetic, soft & formable, excellent corrosion resistance. Sinks, faucets, strainers, kitchen stuff with no edge.See chemical composition and a bit about properties here: ruclips.net/video/0fKAFys9238/видео.html

    • @ashishtiwari1912
      @ashishtiwari1912 9 лет назад

      donny ward 304 refers to class of SS,as it mentioned in the video about types of SS-Austenite,martensite and duplex SS.Austenites have 200 and 300 class,so if you find anywhere with the label of 304,316 that's austenitic stainless steel..304 is also widely known as 18/8 stainless steel,18% chromium and 8% nickel basically and used for surgical items,the other 316 is 18/10 chromium being 18% and nickel 10%,its used in kitchen cutlery and sinks...i think 200 class stainless steels are less corrosion resistant as compared to 300 class....and yes Austenite SS also makeup a huge part of Pressure parts in Industrial boilers preferably for making superheaters and reheater tubes capable of withstanding high pressures and temperatures.so Austenite SS makes majority of the SS produced in the market,swiss knife like shown in the video is strong and tough,its made up of martensite..duplex has roughly twice the strength of Austenites.

    • @donnyfward
      @donnyfward 9 лет назад

      Thank you for this information. I frequently weld 308 formed plate and 308 pipe. I noticed my fitter's magnet wouldn't work on SS. I've been curious what determines how magnetic SS is. I'm guessing it's the amount of chromium in the steel. Thanks again for taking the time to respond.

    • @theoverengineer
      @theoverengineer  9 лет назад

      donny ward Not the chromium. Austenite. Austenite is a special crystal, atoms locked in it won`t be magnetized. Now envision a cube, with atoms sitting at the corners + 1 in the middle of the cube. Austenite has this body-centered cubic crystal lattice, ferritic and martensitic steels are magnetic & are face-centered cubic.

  • @user-hc8kt2nh2x
    @user-hc8kt2nh2x 7 лет назад

    excellent

  • @wolf8182
    @wolf8182 6 лет назад

    Koslow test kits can help identify steels

  • @adrianwolf4570
    @adrianwolf4570 7 лет назад

    what do you think about the 80CrV2 Steel blade knife ?? for Survival - Bushcraft/Outdoor knife use ?? do you think is it durable or not ?? whats the best stone to sharpening the blade ?? 80CrV2 Steel knife blade is it weak or is it strong ?? thanks

    • @theoverengineer
      @theoverengineer  7 лет назад +2

      Blade looks good on paper. Hope they use what they claim they do, hope they make it as it should. Here is how it looks like when they have a clue: ruclips.net/video/ppecDFaLsgE/видео.html
      Types of stones don`t matter much, particle uniformity does, together with particle hardness, particly crystaline structure and behavior. Here is my take on sharpening: ruclips.net/video/LytnUqXzTKE/видео.html

    • @adrianwolf4570
      @adrianwolf4570 7 лет назад +1

      ok thank you for quick response and good advice :)

  • @ixamraxi
    @ixamraxi 8 лет назад

    Not sure if you still read these, but I had a quick question. The xx in the designations, such as 10xx, do they refer to the % of carbon? For example, 5160 would have Cr 0.80% since its 51xx. but then would it have 0.60% carbon? Or, for 1095, would it have 0.95% carbon? Just curious if I was understanding that correctly, and thanks for the answer!

    • @theoverengineer
      @theoverengineer  8 лет назад

      +Amra That`s right, it works exactly like that in carbon and alloy steels.

    • @ixamraxi
      @ixamraxi 8 лет назад

      Thank you so much for the response! That is extremely helpful :)

  • @yitayihanimut8356
    @yitayihanimut8356 3 года назад

    grate lacture

  • @saduniwathsala
    @saduniwathsala Год назад

    👍👍👍

  • @sahilgupta5691
    @sahilgupta5691 8 лет назад

    can i paint on steel ?
    i want to manufacture steel doors and windows with wooden like paints on it,
    but some people told me that steel cant hold paint for long ....

    • @theoverengineer
      @theoverengineer  8 лет назад

      +Sahil Gupta I`m sure you can. It is also possible to paint steel. Needs proper surface prep: cleaning, pickling, priming, drying or possibly baking in a kiln between top coats, depending on paint type.

  • @corydzbinski
    @corydzbinski 8 лет назад +1

    Good info! EN doesn't mean European Norbs or whatever you said though, EN is Emergency Number which are the British steel standards.

    • @theoverengineer
      @theoverengineer  8 лет назад

      +Cory Dzbinski EN is European Norms, as in en.wikipedia.org/wiki/List_of_EN_standards

  • @radioguy1620
    @radioguy1620 8 лет назад

    Thanks for posting but would have been a bit better with a cleaner bit of camera work, everything looks a bit off center, although a good description.

    • @theoverengineer
      @theoverengineer  8 лет назад +2

      +radioguy1620 I also had no script or hope for any editing so it had to be done in 1 take and was shot it with a no-adjustments $50 point-and-shoot camera with all the lights on in the featureless room that makes sound echo quite a bit. And I only found black flipchart marker. Next time I re-shoot will be in 3-D and a crew of 12.

  • @wrackspurtsn5516
    @wrackspurtsn5516 8 лет назад

    is high carbon steel same as hard steel? if they arent same, can you explain a little bit whats a hard steel

    • @ke6gwf
      @ke6gwf 5 лет назад

      Hardening is basically a heat treating process, and can be applied to any type of steel, though some will get harder than others.
      But it is a different subject.