100 steel bolts 🔩 would weigh around 1 kilogram. Imagine on a space ship 🚀 there may be a need for 20,000+ of these bolts. That's 200+ kilos of steel. Titanium literally offers nearly the same strength but cuts the weight in half. This is significant.
@@eriklarsson4121 They´ve used a 8.8 steel bolt. Titanium would be pretty much in par with a 10.9. But they could´ve used a 12.9 that would be stronger. But again, titanium is way lighter.
For a proper sheer test you really need to use a torque wrench if you are going to bolt plates together. The tensile force creates friction between the plates which counteracts the sheer force. Without them being equally torqued you cant be assured they are facing the same sheer force.
Cringed heavily while wathcing that part. Even more those washers and nut on the titanium bolt. For this test you idealy want to set correct preload to the fastener. 8.8 is most widely used fastener in Europe friend. Chinesium tools most often used inferior 5.8. 10.9/12.9 are high strenght fasteners not used for basic construction work, you will not buy these readily in hardware stores.
Aerospace guy here. I honestly think the friction between the two plates is negligible when under a shear load. If you're relying on the friction between the two plates to aid the strength of the fastner than you're already in big trouble. The gap in the two pieces of metal only exists after the bolt has already has already begun to yield. Not in every scenario but typically the fastner is weaker than materials plus when you torque a fastner the torque value changes between shear or tension. The same bolt and nut will be torqued to a higher value in tension than in shear. I would like to see the numbers with the free running nuts hand tight and then torqued. I could be completely wrong...
@@mmholling87 depends.. there are commonly used friction joints with single bolt transmitting tens of kW without any slipage. Bolt only provides necessary joint pressure, there are no keys. So that tells me there is significant friction for this to work. Also the jointing planes are not machined, just simple somewhat flat parts-still works.
This is a cool test, although in the shear tests there are some unwanted effects. As the press pushes down on the upper plate, the offset force causes the plate to pivot outward, creating a gap that gets bigger and bigger as more force is applied. So the plate effectively turns into a pry-bar, pulling the bolt head in tension and bending it in addition to applying the shear force. I think the test would be more representative of true shear if the shear load was applied by pulling on the plates, similar to the setup used for the tensile test. Also titanium is about half as stiff as steel, so it stretched about double the amount before yielding, so the upper shear plate pivoted about twice as far, meaning the titanium bolt received more tension and bending load than the steel bolt during the shear test. Despite this, titanium still came out on top in the comparison!
Nice. Also, in the sheer test, when load was on, the bolts slipped over eachother causing a sharp yank which would've stressed the bolt suddenly affecting the results.
titanium alloy grades are infinitely variable. making something from titanium does not make it stronger than steel. the most necessary component of the titanium is it's light weight to strength in flight applications as well as being non magnetic for flight instrument interference. your shear test was not equal / or sterile. the threads of the steel bolt were being sheared while the unthreaded shank of the titanium bolt was under shear stress. bolts intended for shear load have the applied load shearing on the shank - not on the threads.
Melting point is another factor that favors titanium. You can get titanium a lot hotter than steel before it loses substantial strength. In aerospace and spacecraft heat tolerance is crucial. Another big advantage, in terms of marine applications, is when titanium oxidizes its "rust" is a strong layer that effectively seals the metal beneath. Iron, on the other hand, makes rust that is very brittle and porous, allowing the rust to keep eating deeper and deeper.
@@criticalmass6249 we are currently mixing alloys in artificial gravity that cannot be mixed in natural gravity because they would separate by their periodic specific gravity. using magnets and centrifuges previously un mixable molten alloys are being mixed in hybrid alloy combinations that are both stronger and lighter than ever before. next up - helium bearings.
Steel range from something like 300 to 2500 MPa of ultimate tensile strength depending on the exact alloy and treatment. Titanium resistance can also vary a lot depending on the alloy. So it depends... And the tensile strength is far from being the only criterion.
I agree. We must consider also both bolts' diameters. Titaniums' is larger than steel's; shape has also influence in performance, all this without considering manufacturing process. Regards!
Yeah, the steel bolts used in this test were a pretty weak grade. 8.8 bolts are only 800 MPa UTS. 11.9 bolts, which are pretty common are much stronger than titanium bolts.
You used a weak grade of steel alloy. Why not use 12.9 grade alloy steel? Why only 8.8? Perhaps do another test comparing 12.9, 8.8, and titanium. Be interesting to see how much stronger is 12.9 by comparison.
The shear test was not optimal for the titanium as the washers needed to space it out didn’t provide enough support to keep the plates from deflecting. There’s a shatter test for titanium fasteners, from what I have heard steel has a better shatter resistance.
Steel is stronger(slightly) than titanium, however titanium is much lighter. Tthe steel bolt is clearly a little skinnier and seems to have a different heat treatment than the titanium one.
To get the true results in your shear test, it's important to have the proper size hole to fit the bolt. Also, you sheared the 8.8 bolt on its weakest part, its thread. The full shank of the bolt should go through both halves of the material, and it should be brought to proper rated torque for the test.
I'm a blacksmith and had my tries at armor making. In buhurt (medieval armored combats), steel and titanium armors are used in competition. The thing is, titanium is less protective than steel. Titanium, with the right alloys and tempering can have the strength of steel, for less weight. BUT it does not have its ductility. Titanium will flex, but will not bend, it will snap instead. Steel will flex too, but if overloaded it will deform, thus absorbing the energy like the chassis of a car. The strongest alloys of iron will be stronger than the strongest alloys of titanium however, but it's insignificant for most applications. Titanium is good for saving weight. But it is expensive as shit, and very hard to forge (weird heat treatment, springy while heated etc), steel is cheaper, strong too, but heavier. But it will bend when overloaded, wich can be life saving in some situations.
Thanks. I’d love to see a pipe vs a concrete filled pipe. The concrete filling should prevent the pipe from failure due to folding, but I’m curious just how big the effect would be.
@@blankblank2345 I think the empty pipe will fail much faster because once it starts to bend a crease can form and it will fold. It seems to me that the concrete filled pipe would be very resistant to folding because it would have to compress the concrete to do so, and concrete doesn’t compress. I suppose to get the full benefit of that you would have to cap the ends to keep the concrete in the pipe. In any case, I’d like to see it put to the test.
It’s a misunderstanding that titanium is extra strong. It’s the strength to weight ratio that is superior to steel. Not the overall strength. A lot of this has to do with what alloys you’re talking about too but generally steel is stronger than titanium. Class 8.8/grade 5 is a medium strength steel bolt and that’s why titanium outperformed it. Had it been a grade 8 bolt it would have easily outperformed titanium.
This. Volumetrically, steel outperforms titanium every time - and alloyed steels usually beat alloyed titanium, too, especially with the right grain structure. But weight-wise, titanium usually wins, and easily. You can get a lot more strength per unit weight from Ti.
Stainless steel beats titanium at everything except weight and chemical reaction. Stainless steel its also refractory up to 1400 C while titanium its not( just up to 700-900 C).
The grade 8 that is being used is also a vented bolt. It is used in vacuum systems to prevent creating a virtual leak and to allow the bolt to be removed without it having a trapped vacuum underneath. The shear test in this case is very inaccurate due to this and the other reasons people have pointed out already.
First of all, you cannot compare bolts with different diameter, seems like we have a dia. 4,8mm steel bolt and a 6,35mm titanium bolt. And of course you must use a torque wrench for tighten bolts at same Nm value
Was expecting something like "hydraulic press channel's" test, but was positively surprised when I saw that this was a more scientific test. Slow loading (not just going full speed, like HPC does) and you also tested the bolts in tension. Nice to see a test like this on youtube, where almost everyone's main goal are views. Maybe another test with 10.9 and 12.9 strength steel bolts? Thanks for posting.
@@robbiejames1540 I think they do exist, but they're hard if not impossible to find. The ones on ebay are fake (check the description and it will say something like 4.6 or 8.8 at best).
Something a lot of people also don't think about with space craft is that you need not just strength but many other aspects as well such as weight, corrosion, properties in a vacuum and other things
8.8 screw : maximum traction 8 daN / mm² elasticity 80% of 8 daN / mm² in traction so if you use a 10.9 steel grade, it's strong as titanium. but heavier.
Used a little bit of Ti on racing motorcycles, and quite a bit of it on racing mountain bikes. First really quantitative test I've seen. Seems like I was not just fooling myself all those years.
Good experiment to demonstrate the superior strength of Titanium. I wouldn’t be surprised in the foreseeable future another kind of metal/alloy would be even stronger than Titanium. That is the power of technological advancement.
The titanium bolt was a larger diameter, and it was being compared against a fairly low grade steel bolt. If the titanium bolt was being compared against a high grade steel bolt of the same size it would have been significantly weaker albeit with a higher strength to weight ratio.
Titanium versus Steel? What alloy of each are you talking about? There are so many. What application are you talking about? So many variables. A simple comparison is entertaining but doesn't apply when actually engineering for an application. I like that you are educating the public here with these videos. Keep it up.
It depends on which steel and which titanium. Titanium is around as soft as iron. But titanium alloys can be way harder and way stronger. Some titanium is about as hard as a coat hanger. But in general Steel gets harder and tougher, titanium is generally more ductile and shock resistant.
How would I compare the usual screws to titanium, I would use harder ones - 10.9 or even 12.9. Maybe it is better to make a film with steel screws in the same DIN in different hardness classes?
Now you know why titanium is the go to for aerospace stuff, pretty much on par with steel but far lighter. You should try some beryllium aluminum alloy spacecraft bolts. They are about 2x as strong as most high strength steel alloys and super featherweight. They are used for applications where they cannot come loose, and the aluminum tends to bind the nut or threaded hole so they are in essence one time use, as is the stuff they are used for 🤓
Replace all steel screws of your mountainbike with titanium and spend 200 Euro, makes 100g less. Replace the 2 tires with steel wire bead by kevlar foldable tires, cost about 20 Euro more and reduces weight approx. 1 kg.
Ti is such an amazing metal. It also doesn’t rust in salt water or around chlorine like all alloys of stainless steel do (even 316 will eventually rust)
I knew the corrosion resistance of titanium was good but I didn’t know to what extent. As a knife guy I do happen to know that H1 stainless steel basically can’t rust, I’ve saw salt water test were a knife with that steel was left in salt water for a week and the steel was perfect when it came out.
I would love to see steel grade 50 vs stainless steel vs phosphor bronze. though I don't know if you could get phosphor bronze easily. You would probably have to lathe down a chunk to compare it. tungsten and Inconel also are candidates.
Ой, у нас такой 8.8 продают в строительных магазинах, что там и 6 не пахло. Надо сразу автомобильные покупать, где хоть производитель честно указывает класс, БелЗАН, например. К титановому желательно указать сплав, ибо разные бывают. К нержи тоже, 304 и 316 сильно отличаются.
Nice test. Final results are little bit misleading and show smaller difference then it is in reality. The moment bolt starts to stretch or deform in anyway is considered a mechanical failure because it stopped doing its purpose. You can clearly see at 3:20 bolt is already starting to stretch at about 3000 on the display, so if just kept this force constant bolt would have snapped eventually as well. The fact it lasted all the way to 5000 is completely irrelevant. Titanium on the other hand barely malforms at all until it fails. This makes titanium probably twice as good over steel. Not just 20% better the shown results would suggest.
People don’t get it that Titanium is harder and stronger by weight. This means that a strength comparison should be done for equal weight. Not happening in this video.
I know this is just a basic test for RUclips, but a proper comparison would have two bolts of the same design. These bolts have different heads and thread lengths. Also the specific alloy of each bolt should listed, along with any heat treatment that may have been applied. These parameters can have huge differences in the strengths of each metal. A general comparison of cost would be nice too.
At 1:13 the bolt clearly had a left hand thread. So did the titanium bolt at 1:52. This is the opposite thread from the bolts he showed us a few seconds earlier. The bolts at 35 s are both right hand thread. Similarly at 2:54 the bolt is a left hand thread but at 2:18 it is being done up as a right hand thread bolt. Now I can only presume that someone reversed the video frames at various times but it instantly looks all wrong to me.
The yellow and black tape on the press clearly shows that some shots were mirrored. Some shots may have been recorded with a mirror to avoid placing the camera in the direction of flying metal.
Probably filming at 90 degrees looking through a mirror set at 45 degrees so as not to put his camera in the line of fire through the hole cut in the safety shield. Said all that in one breath.
There are applications for both steel and titanium. For tools, steel is king because it can be hardened and coated (like knives/ wrenches/ sockets etc.) when weight is a major factor, titanium is usually where you make money, even though it’s more expensive to machine. Coming from a jet mechanic, and knife maker, I like both.
And that's just little 1/4" to 5/16" bolts it looks like. Imagine a titanium 3/8" or 1/2" bolt, which is more used when needing strength. DAMN!!! that's some strong shit 👍👍🍻
Развлечения
"Do not repeat at home"
Me with no hydraulic press: Sure won't mate!
Me - looks at hydrauilc press: Damn, one of these days I'll get to use it!
🤣
100 steel bolts 🔩 would weigh around 1 kilogram. Imagine on a space ship 🚀 there may be a need for 20,000+ of these bolts. That's 200+ kilos of steel. Titanium literally offers nearly the same strength but cuts the weight in half. This is significant.
What do you mean nearly? Didn’t the video showed that titanium is stronger?
@@eriklarsson4121 yep, but there are some steels that are in the range or a bit stronger than titanium.
@@eriklarsson4121 They´ve used a 8.8 steel bolt. Titanium would be pretty much in par with a 10.9. But they could´ve used a 12.9 that would be stronger. But again, titanium is way lighter.
@@eriklarsson4121 Quite often, engineering parameters and specifications are about a range, slick. 🤠
titanium bolts would have 120kg?!
“Do not try at home” me: (slowly puts away 100 ton press)
Hahaha good one 👍
🤣🤣🤣🤣
e
For a proper sheer test you really need to use a torque wrench if you are going to bolt plates together. The tensile force creates friction between the plates which counteracts the sheer force. Without them being equally torqued you cant be assured they are facing the same sheer force.
Exactly my thought. Greetings from an automotive engineer
And using 8.8 steel bolts. Should have used 10.9, something more widely used.
Cringed heavily while wathcing that part. Even more those washers and nut on the titanium bolt. For this test you idealy want to set correct preload to the fastener. 8.8 is most widely used fastener in Europe friend. Chinesium tools most often used inferior 5.8. 10.9/12.9 are high strenght fasteners not used for basic construction work, you will not buy these readily in hardware stores.
Aerospace guy here. I honestly think the friction between the two plates is negligible when under a shear load. If you're relying on the friction between the two plates to aid the strength of the fastner than you're already in big trouble. The gap in the two pieces of metal only exists after the bolt has already has already begun to yield.
Not in every scenario but typically the fastner is weaker than materials plus when you torque a fastner the torque value changes between shear or tension. The same bolt and nut will be torqued to a higher value in tension than in shear.
I would like to see the numbers with the free running nuts hand tight and then torqued. I could be completely wrong...
@@mmholling87 depends.. there are commonly used friction joints with single bolt transmitting tens of kW without any slipage. Bolt only provides necessary joint pressure, there are no keys. So that tells me there is significant friction for this to work. Also the jointing planes are not machined, just simple somewhat flat parts-still works.
This is a cool test, although in the shear tests there are some unwanted effects. As the press pushes down on the upper plate, the offset force causes the plate to pivot outward, creating a gap that gets bigger and bigger as more force is applied. So the plate effectively turns into a pry-bar, pulling the bolt head in tension and bending it in addition to applying the shear force.
I think the test would be more representative of true shear if the shear load was applied by pulling on the plates, similar to the setup used for the tensile test.
Also titanium is about half as stiff as steel, so it stretched about double the amount before yielding, so the upper shear plate pivoted about twice as far, meaning the titanium bolt received more tension and bending load than the steel bolt during the shear test. Despite this, titanium still came out on top in the comparison!
Scherkräfte sind der Alptraum jedes Ingenieurs .
Because of the different dimensions and thread cut depth, shear test wast very scientifically precise.
Nice. Also, in the sheer test, when load was on, the bolts slipped over eachother causing a sharp yank which would've stressed the bolt suddenly affecting the results.
titanium alloy grades are infinitely variable.
making something from titanium does not make it stronger than steel.
the most necessary component of the titanium is it's light weight to strength in flight applications as well as being non magnetic for flight instrument interference.
your shear test was not equal / or sterile.
the threads of the steel bolt were being sheared while the unthreaded shank of the titanium bolt was under shear stress.
bolts intended for shear load have the applied load shearing on the shank - not on the threads.
Melting point is another factor that favors titanium. You can get titanium a lot hotter than steel before it loses substantial strength. In aerospace and spacecraft heat tolerance is crucial. Another big advantage, in terms of marine applications, is when titanium oxidizes its "rust" is a strong layer that effectively seals the metal beneath. Iron, on the other hand, makes rust that is very brittle and porous, allowing the rust to keep eating deeper and deeper.
That's what I wanted to convey ...
Interesting 🧐 you guys really know your stuff, thanks !
It’s great for suppressors too.
@@criticalmass6249 we are currently mixing alloys in artificial gravity that cannot be mixed in natural gravity because they would separate by their periodic specific gravity. using magnets and centrifuges previously un mixable molten alloys are being mixed in hybrid alloy combinations that are both stronger and lighter than ever before.
next up - helium bearings.
Steel range from something like 300 to 2500 MPa of ultimate tensile strength depending on the exact alloy and treatment. Titanium resistance can also vary a lot depending on the alloy. So it depends... And the tensile strength is far from being the only criterion.
I agree. We must consider also both bolts' diameters. Titaniums' is larger than steel's; shape has also influence in performance, all this without considering manufacturing process. Regards!
Yeah, the steel bolts used in this test were a pretty weak grade. 8.8 bolts are only 800 MPa UTS. 11.9 bolts, which are pretty common are much stronger than titanium bolts.
You used a weak grade of steel alloy. Why not use 12.9 grade alloy steel? Why only 8.8?
Perhaps do another test comparing 12.9, 8.8, and titanium. Be interesting to see how much stronger is 12.9 by comparison.
The shear test was not optimal for the titanium as the washers needed to space it out didn’t provide enough support to keep the plates from deflecting.
There’s a shatter test for titanium fasteners, from what I have heard steel has a better shatter resistance.
Glad to see this as a reference of my determination for buying iPhone 15😵
the fact that the cumulative shear strength of both bolts' threads was higher than the tensile strength of the main bodies fascinates and bemuses me
Yeah that’s kinda how bolts work
Strength of materials be like it do.
This lines up with what I've always known. Titanium is only really just a little stronger than steel for any given volume but MUCH MUCH lighter.
And titanium is not magnetic.
And titanium doesn’t corrode like steel.
@@tfhmobil Basically perfect but expensive.
@@DragonOfTheMortalKombat very expensive.
Steel is stronger(slightly) than titanium, however titanium is much lighter. Tthe steel bolt is clearly a little skinnier and seems to have a different heat treatment than the titanium one.
Having worked in a mechanical test lab I can assure you, there are steel alloys out there much stronger than titanium.
To get the true results in your shear test, it's important to have the proper size hole to fit the bolt. Also, you sheared the 8.8 bolt on its weakest part, its thread. The full shank of the bolt should go through both halves of the material, and it should be brought to proper rated torque for the test.
Great down and dirty test rigs. Good stuff.
Fun vid. Learned years ago in a machine shop- titanium is the same strength as steel at half the weight. Cool stuff.
I'm a blacksmith and had my tries at armor making. In buhurt (medieval armored combats), steel and titanium armors are used in competition. The thing is, titanium is less protective than steel.
Titanium, with the right alloys and tempering can have the strength of steel, for less weight. BUT it does not have its ductility. Titanium will flex, but will not bend, it will snap instead. Steel will flex too, but if overloaded it will deform, thus absorbing the energy like the chassis of a car. The strongest alloys of iron will be stronger than the strongest alloys of titanium however, but it's insignificant for most applications. Titanium is good for saving weight. But it is expensive as shit, and very hard to forge (weird heat treatment, springy while heated etc), steel is cheaper, strong too, but heavier. But it will bend when overloaded, wich can be life saving in some situations.
I love the VASSH "DONT YOU SEE" track in the beginning. Thank you.
Used to watch the Hydraulic Press Channel but this channel does all of the things I need to keep living instead of simply crushing stuff
Thanks. I’d love to see a pipe vs a concrete filled pipe. The concrete filling should prevent the pipe from failure due to folding, but I’m curious just how big the effect would be.
it would break at the same force but way faster and with almost no elastic deformation
@@blankblank2345 I think the empty pipe will fail much faster because once it starts to bend a crease can form and it will fold.
It seems to me that the concrete filled pipe would be very resistant to folding because it would have to compress the concrete to do so, and concrete doesn’t compress. I suppose to get the full benefit of that you would have to cap the ends to keep the concrete in the pipe.
In any case, I’d like to see it put to the test.
It’s a misunderstanding that titanium is extra strong. It’s the strength to weight ratio that is superior to steel. Not the overall strength. A lot of this has to do with what alloys you’re talking about too but generally steel is stronger than titanium. Class 8.8/grade 5 is a medium strength steel bolt and that’s why titanium outperformed it. Had it been a grade 8 bolt it would have easily outperformed titanium.
This.
Volumetrically, steel outperforms titanium every time - and alloyed steels usually beat alloyed titanium, too, especially with the right grain structure.
But weight-wise, titanium usually wins, and easily. You can get a lot more strength per unit weight from Ti.
Stainless steel beats titanium at everything except weight and chemical reaction.
Stainless steel its also refractory up to 1400 C while titanium its not( just up to 700-900 C).
R u a spaceship engineer
@@dimitrygornomelikov3146 are you going to pursue interests in knowledge?
@@UnifiedInfo I don’t listen to Americans
The grade 8 that is being used is also a vented bolt. It is used in vacuum systems to prevent creating a virtual leak and to allow the bolt to be removed without it having a trapped vacuum underneath. The shear test in this case is very inaccurate due to this and the other reasons people have pointed out already.
Heh I love the "my precious" moment at the beginning of these videos when he's rolling them around in his hands to show them
First of all, you cannot compare bolts with different diameter, seems like we have a dia. 4,8mm steel bolt and a 6,35mm titanium bolt. And of course you must use a torque wrench for tighten bolts at same Nm value
Well good thing this ismt a strictly scientific test and is mostly for entertainment
Man you have very cool music on your channel Thanks for video
Was expecting something like "hydraulic press channel's" test, but was positively surprised when I saw that this was a more scientific test. Slow loading (not just going full speed, like HPC does) and you also tested the bolts in tension. Nice to see a test like this on youtube, where almost everyone's main goal are views. Maybe another test with 10.9 and 12.9 strength steel bolts? Thanks for posting.
"This is science!" In a spartan roar
I'd love to see a 14.9 vs a 12.9. I never even knew 14.9s existed until I saw them being sold on eBay.
@@robbiejames1540 I think they do exist, but they're hard if not impossible to find. The ones on ebay are fake (check the description and it will say something like 4.6 or 8.8 at best).
I never try these experiments at home, I always do them in a public area. 😂
The problem with going out in public is that the public is there
e.g. police station.
Something a lot of people also don't think about with space craft is that you need not just strength but many other aspects as well such as weight, corrosion, properties in a vacuum and other things
To everyone who sees this comment, keep pushing in life and never give Up. Can't wait to see you successful one day and May God Bless You! 🥰🥰🥰🥰
8.8 screw : maximum traction 8 daN / mm²
elasticity 80% of 8 daN / mm² in traction
so if you use a 10.9 steel grade, it's strong as titanium. but heavier.
А 12.9 ещё лучше. 8.8 почти пластилин.
In other words, titanium is still better due to its lighter weight.
@@oldi184 все правильно, титан легче, только он, сука, сильно дороже. Поэтому и используется далеко не везде
@@Botanic74
Can you speak English?
@@oldi184 i can reed, a litle speak, but write not well
I was just about to Amazon order an industrial press to try this at home but then I saw the disclaimer.
Норм! Теперь ясно и понятно почему Бугатти вейкрон передняя и задняя часть кузова крепятся 14 титановыми болтами✌️😇
Used a little bit of Ti on racing motorcycles, and quite a bit of it on racing mountain bikes. First really quantitative test I've seen. Seems like I was not just fooling myself all those years.
The sorta soft music in the background just makes the content much more interesting and satisfying
“Do not repeat at home”
Dude, if I had a hydraulic press, then what else am I supposed to use it for!?
Cool experiment 👍
"Don't try this at home"
Bold of you to assume I have an hydrolic press hahaha
I always wondered. Thanks for sharing ☺️
Who's watching to see how durable iphone 15 pro is? :)
Cool video!
What was the size of the bolts, and pitch?
Can You compair a fine metric and metric screw tensile strength? 8.8 or 10.9?
comprehensive tests!
Really thanks for THIS VIDEO.. GREAT KNOWLEDGE I GET TODAY .
Wonderful science experiment.
"don't try this at home"....... because a common household machine is of course a hydraulic press
It's not the bolt it's the nut
No. But in some households is a hydraulic press.
Всё таки резьба - гениальное изобретение. Болт рвётся, но резьба держит.
Surface area is no joke.
Great stuff!!!
Great video 👍
Good experiment to demonstrate the superior strength of Titanium.
I wouldn’t be surprised in the foreseeable future another kind of metal/alloy would be even stronger than Titanium.
That is the power of technological advancement.
The titanium bolt was a larger diameter, and it was being compared against a fairly low grade steel bolt. If the titanium bolt was being compared against a high grade steel bolt of the same size it would have been significantly weaker albeit with a higher strength to weight ratio.
This is why there’s designing many different type of bolt. Each bolt has his own advantage and utility
0:01 Do you really thing that i have a fu**ing hydrolic press at my home ?
Wow amazing 🤩
Keep it up, thank you for sharing :)
I would like to have seen a comparison of the titanium bolt verses a grade 8 or 12.9 bolt as 8.8 is not a high strength bolt. Keep up the good work 👍
great video
I had no idea, Ti was that good!
Nice video 💪
Good job 👏 👍 👌
Really awesome
Your best video!!!!
Funny notification at the beginning!
How can I repeat this at home?)
Wow excellent job😍😍
bruh im no simp
Titanium versus Steel? What alloy of each are you talking about? There are so many. What application are you talking about? So many variables. A simple comparison is entertaining but doesn't apply when actually engineering for an application. I like that you are educating the public here with these videos. Keep it up.
Another Awesome VideO As Always * 💋
❤
Love your Channel 💙
It would be interesting to see the difference in price. Cool vid.
@abigmonkeyforme which is why steel is used more
It depends on which steel and which titanium. Titanium is around as soft as iron. But titanium alloys can be way harder and way stronger. Some titanium is about as hard as a coat hanger. But in general Steel gets harder and tougher, titanium is generally more ductile and shock resistant.
It's not the bolt it's the nut
There is SOO many different types of steels and Titanium.
Okay, I won't try it at home. I'll just try it at work.
This test should obviously test bolts with the same weight.
Also would be really cool to throw in a good quality aluminum bolt in the mix as well..
How would I compare the usual screws to titanium, I would use harder ones - 10.9 or even 12.9.
Maybe it is better to make a film with steel screws in the same DIN in different hardness classes?
the super hard ones tend to snap, don't they? I'd rather use fasteners with some ductility
Now you know why titanium is the go to for aerospace stuff, pretty much on par with steel but far lighter. You should try some beryllium aluminum alloy spacecraft bolts. They are about 2x as strong as most high strength steel alloys and super featherweight. They are used for applications where they cannot come loose, and the aluminum tends to bind the nut or threaded hole so they are in essence one time use, as is the stuff they are used for 🤓
Replace all steel screws of your mountainbike with titanium and spend 200 Euro, makes 100g less. Replace the 2 tires with steel wire bead by kevlar foldable tires, cost about 20 Euro more and reduces weight approx. 1 kg.
Ti is such an amazing metal. It also doesn’t rust in salt water or around chlorine like all alloys of stainless steel do (even 316 will eventually rust)
I knew the corrosion resistance of titanium was good but I didn’t know to what extent. As a knife guy I do happen to know that H1 stainless steel basically can’t rust, I’ve saw salt water test were a knife with that steel was left in salt water for a week and the steel was perfect when it came out.
good test !:-)
I would love to see steel grade 50 vs stainless steel vs phosphor bronze.
though I don't know if you could get phosphor bronze easily.
You would probably have to lathe down a chunk to compare it.
tungsten and Inconel also are candidates.
I used to work with hydraulic presses, smashing and bending shit never gets old.
You pick the titanium bolt with a round head for a flat top screw driver when there were other hex head bolts to choose from?
The clamping force of the fastener Will create friction that exceeds the Force required to sheer the bolt in this single sheer configuration
👏
Ой, у нас такой 8.8 продают в строительных магазинах, что там и 6 не пахло. Надо сразу автомобильные покупать, где хоть производитель честно указывает класс, БелЗАН, например.
К титановому желательно указать сплав, ибо разные бывают. К нержи тоже, 304 и 316 сильно отличаются.
Nice test. Final results are little bit misleading and show smaller difference then it is in reality. The moment bolt starts to stretch or deform in anyway is considered a mechanical failure because it stopped doing its purpose. You can clearly see at 3:20 bolt is already starting to stretch at about 3000 on the display, so if just kept this force constant bolt would have snapped eventually as well. The fact it lasted all the way to 5000 is completely irrelevant. Titanium on the other hand barely malforms at all until it fails. This makes titanium probably twice as good over steel. Not just 20% better the shown results would suggest.
People don’t get it that Titanium is harder and stronger by weight. This means that a strength comparison should be done for equal weight. Not happening in this video.
On another occasion, I would like to see a test like this using an infrared camera so that it looks like the heat caused by the force that occurs
You should put stress x strain graph into this video, very useful for physics students
I know this is just a basic test for RUclips, but a proper comparison would have two bolts of the same design. These bolts have different heads and thread lengths.
Also the specific alloy of each bolt should listed, along with any heat treatment that may have been applied.
These parameters can have huge differences in the strengths of each metal.
A general comparison of cost would be nice too.
What would you make a D-, cable or chain lock out of if you want it to take all day to cut it with the best cutting tool?
At 1:13 the bolt clearly had a left hand thread. So did the titanium bolt at 1:52. This is the opposite thread from the bolts he showed us a few seconds earlier. The bolts at 35 s are both right hand thread. Similarly at 2:54 the bolt is a left hand thread but at 2:18 it is being done up as a right hand thread bolt. Now I can only presume that someone reversed the video frames at various times but it instantly looks all wrong to me.
Yeah autism can be hell
I thought I was the only one who noticed it
Flipped vertically
The yellow and black tape on the press clearly shows that some shots were mirrored.
Some shots may have been recorded with a mirror to avoid placing the camera in the direction of flying metal.
Probably filming at 90 degrees looking through a mirror set at 45 degrees so as not to put his camera in the line of fire through the hole cut in the safety shield. Said all that in one breath.
Please show the fractured bolts from shear tests
Hi..can you explain what kind of the specific material steel and titanium type.
@AGNÉZ Buny Girls he was asking what material the steel or titanium is
There are applications for both steel and titanium. For tools, steel is king because it can be hardened and coated (like knives/ wrenches/ sockets etc.) when weight is a major factor, titanium is usually where you make money, even though it’s more expensive to machine. Coming from a jet mechanic, and knife maker, I like both.
What were the bolts tensioned to?
superb
could u test fiber glass block plz?
And that's just little 1/4" to 5/16" bolts it looks like. Imagine a titanium 3/8" or 1/2" bolt, which is more used when needing strength. DAMN!!! that's some strong shit 👍👍🍻
Compare the EN 8. Vs mild steel
Is this filmed in reverse? You tightened the first bolt anti clockwise.
What grade titanium bolts did you use?
Had to try at home. One better steel connecting rods vs titanium connecting rods v 61900 hp . Thanks spooln272
Now you should try bubble gum vs sugarless gum!!
what grade of titanium is this bolt made of?
Bro hopefully that spaceship isn't falling apart missing those bolts
Very cool
"Do not repeat at home"
Me=enga keta endha HYDRAULIC PRESSer😂😂
Fancy CBT kink tools you have there!
Good videos