Testing Aluminum alloys and stainless steel for armor!

Рет қаралды 4,035

6 ай бұрын

In this project video we are joined by my dear friend Devon all the way from France. (his youtube channel here: • better than the kolpak... )
Today's focus was on aluminum alloys for ballistic armor. we also tested some different configurations with stainless steel sheet metal. Some of these samples handled quite well, and I think you could build off them. I plain on using some of these samples as a basis for future vehicle armor designs. Huge thank you to Devon for coming out to America for the 4th of July.
Link to my community discord: / discord
and my Patreon if you want to support the channel: patreon.com/Techthisoutmeow
More armor videos out soon, The next one is on armoring up the jeep, and that's going to be a big one!

Пікірлер: 48

@KisMaiBut 6 ай бұрын

Would be great to have a link to a page with your testing results. Materials, projectiles, etc. for each of your videos. This information could be invaluable rather than having to try to extract that info while watching your videos.

@thelaughinghyenas8465 6 ай бұрын

I agree. It's fascinating but I wasn't sure what alloy was what in what shot and what was the penetration threshold for each alloy. Even just some different color spray paint on the face of each alloy would help. A simple table at the end summarizing results would also help a LOT so we know what worked and what didn't for your research so we can compare it to ours for our further research.

@Techthisoutmeow 6 ай бұрын

Excellent idea. In my last video, I did a full guide for it (if you haven't seen that one already). For videos where I do just some different ballistic samples like this one, I think I could do an excel sheet or something simple for people to read. Thanks for the suggestion, I'll implement this soon. I think I'll make one for this and post it on this comment when I get some free time.

@thelaughinghyenas8465 6 ай бұрын

@@Techthisoutmeow , An image from an Excel sheet that you incorporate in your video and narrate should be easy to do and would be a fantastic value add!

@DaveSmith-cp5kj 5 ай бұрын

Sample 1 10x12” 8lb 4oz 16ga SS 304 0.25” HDPE 16ga SS 304 0.25” HDPE 16ga SS 304 0.25” HDPE X39 penetrates X39 and 5.56 stops with an additional 8mm porcelain Sample 2 10x12” 3lb 13oz 16ga SS 304 2x Stops 38, 380, 45, 357mag 44 mag penetrates Sample 3 9.6x9.3” 0.9” thick 7lb 10oz 6067 aluminum T6 hardness Stops x39 Sample 4 3.7x3.7” 1.2lb 5/8” 7075 T6 0.25” 6067 T6 200gsm polyester fabric X39 stopped Sample 5 15.75x12” 0.25” thick 4lb 11oz 6067 T6 Strikeface added (12x12” porcelain capri classic 8mm thick) 3lb 5oz X39, 5.56 penetrates Sample 6 10x12” 10lb 3oz 1/8” SS 304 0.75” VHDPE 1/8” SS 304 X39 penetrates Sample 7 10x12” 10lb 1/8” SS 304 0.75” UHMWPE 1/8” SS 304 Stops x39 5.56 penetrates Sample 8 3.7x3.7” 15oz 15mm 7075 T6 15 layers 160GSM UHMWPE X39 penetrates Sample 9 10x12” 3.4lb 5083 aluminum 10mm thick (2.6/cm^3) Stops 38, 380, 45, 357mag 44 mag penetrates Sample 10 10x12” 7lb 7oz 2mm mild steel 0.5” polycarbonate 2mm mild steel X39 penetrates Sample 11 10x6.75” 2lb 6oz 10mm 5083 Split strikefaces to compare 1- 0.25” 6067 T6 4x4” 6oz 2- 8mm porcelain tile 6x6” 11oz Stops 38, 380, 45, 357mag 44 mag penetrates

@MoonMoon-gu2ge 6 ай бұрын

Wake up babe, new armor video just dropped.

@highmolecularweightRDX 6 ай бұрын

French gnomes appearing in your garage to help you build armor is the most american fairy tale.

@cl4998 6 ай бұрын

Watching your guest get so excited, and have such a good time had me smiling the entire time. Combination of science, and wholesome content! Thanks guys.

@Techthisoutmeow 6 ай бұрын

Yeah, he had a blast shooting firearms for the first time. I'm glad I got to share that time with him.

@nateb4543 6 ай бұрын

This vid made me realize I've never heard different calibers spoken in a french accent. I like it

@jayroc3337 3 ай бұрын

I love people from other countries experiencing the freedom we still have! 🦅

@skullthrower8904 6 ай бұрын

The rare armorjaks at it again

@vaughanellis7866 6 ай бұрын

A company that I used to work for made 5083 Extruded Aluminium Alloy Armour to MIL-DTL-46027 spec, to was designed to rapidly work harden when struck with a projectile or the blast from a mine, we supplied it to vehicle manufacturers who were building fast assault vehicles for UK Special Forces, and fast reconnaissance vehicles for the UK armoured regiments

@aquariumengineer 6 ай бұрын

I can imagine 5083 hammmered plate with an exterior ceramic bead /elastomer strike would be a really novel test. Multiple hit survivable and bring it up into rifle category protection

@williamsavageii9569 6 ай бұрын

Bonjous, Devon! Your shooting was TRES BIEN!

@-Turtl3_ 6 ай бұрын

haha the intro is great, nice to see you two having a good time together :)

@wiggernumba5 6 ай бұрын

Thumbnail on point

@brendanloconnell 6 ай бұрын

It would be super interesting to see how 5083 with a ceramic strike face performs.

@williammacintosh1742 6 ай бұрын

This thumbnail made my day xD Can't wait to watch the video also :D

@agremna5 6 ай бұрын

The idea of work-hardening may be useful to explore. The basic purpose of a ceramic strike face serves the purpose of deforming the projectile enough to be absorbed by the high tensile backing. But the ceramics are heavy and not durable. If you can work-harden the alloys to a high brittleness, brittleness relative to mailable metals, may yield a desired degree of deformation with a reduction of weight.

@RandyCampbell-fk3pf 6 ай бұрын

Work hardening is ok for nonferrous alloys like aluminum but can make them brittle in unexpected ways (nobody is perfect at working the metal) For steel alloys, you can quench harden to extremely hard but brittle martinsitic steel using a bonfire and a water bucket (good for strike face if laminated) For subsequent layers you can anneal it in an oven to reduce the brittleness.. 3 tin can lids, 1 quench hardened, 1 annealed and 1 right off (or on) the can will stop a lot. To test different glues/epoxies, I filled tin cans with clay and glued/epoxied the 2 heat treated lids on the bottom of the cans and put them in a frame made from an old pallet that fit cans 4x4. It worked for all my pistol calibers regardless of glue, though the ones with a top layer of laminate seemed to dent less and have less spalling. It was a really fun homeschool science project.

@agremna5 6 ай бұрын

@@RandyCampbell-fk3pf Yeah, I know about steel quenching. This channel has already made materials to repel most calibers. The problem is weight and volume. Lightweight materials capable of stopping pistol calibers isn't too hard. its the issue with velocity of the rifle calibers that is proving a headache. That's why i suggested he look into work hardening. That one small work hardened piece of aluminum was surprisingly resilient. I just thought that a work hardened piece of aluminum combined with other materials might be a lighter smaller avenue worth exploring.

@13-Diamino-246-trinitrobenzene 5 ай бұрын

I’m fairly sure ceramics are usually designed to be lighter that normal steel armor

@agremna5 5 ай бұрын

yes @@13-Diamino-246-trinitrobenzene

@nemesisobsidian 6 ай бұрын

I think the steel laminated HDPE composite could work as armor even armor that could block some rifles provided the steel inlays in the plastic weren't too thick like no thicker than 1/16 of an inch and it was fronted with a proper ceramic strike face like an Aluminum Oxide, Silicon Carbide, or Boron Carbide strike face that you can sinter at home. Probably have to find out the exact ratio that will work as a face if porcelain is still being used. I just refuse to believe that steel even a good grade of steel encased in solid block HDPE wouldn't be effective as a backer. Steel has always stood the test of time and has beat out pretty much any other metal throughout history. Those Aluminum alloys may be lighter than steel, but they're far from being tougher. It's the exact opposite. That Stainless Steel showed just how good it was at being harder and more ductile and durable at the same time than aluminum. Hell, depending on the grade, steel has even demonstrated that it's way stronger than even some high grades of Titanium alloys. Take AR500 for instance. Grade 38 Titanium alloy doesn't even come close to being as hard as AR500. And Grade 38 Titanium is supposed to be even tougher than Grade 5 Titanium. I'm willing to bet that Stainless is probably hard enough to scratch some of those Aluminum alloys. Even mild steel could probably leave a mark. And it's weaker than Stainless. But for the weight, one has to be careful because steel can get uncomfortably heavy if you rely on it too much for your armor. Aluminum has proven to be a good option strength to weight ratio wise, but the jury is still out on whether or not we can optimize Aluminum alloy composite materials for rifle rated ballistic panels. Oh, and by the way, happy new year to everyone. Sorry I couldn't join the party sooner.

@tinkeringclaws5559 4 ай бұрын

you can thank me for inventing the duct method. Can't prove that I didn't invent it

@morareduard 6 ай бұрын

750cm^2 * 0.6cm = 450 cm^3, that would be about 1220 grams or 2.69 pounds

@pyeitme508 6 ай бұрын

WOW COOL!

@devjock 6 ай бұрын

If you can get your hands on some 3mm (atleast) Hardox450 / 500, two layers of that with thin silicone caulcking inbetween stops 50 beowulf apparently.

@RavemastaJ 6 ай бұрын

I'm almost certain I did the numbers wrong, but is that 6mm aluminum plate only 1.17 Kilograms for a SAPI sized plate? And it can stop .357 magnum? (750 x 0.6 x 2.6) If so, that's almost perfect for a shield, going into the 2024 riot season.

@gamecubekingdevon3 2 ай бұрын

A 10x12 inch (25x30cm) sapi plate forme 750cm² before cutting the corners 1/4 inch is ~6,3mm 5083 is 2,6 gramms per cm³ So [ (750×0,6)×2,6] = your weight in gramms (1000 gramms = 2,2lbs) So yeah, ~1,2kg realm before cutting corners

@donavanperry1928 5 ай бұрын

Could you try some quarter inch aluminum backed with kevlar or some other pistol stopping fibrous backing to catch the potential fragments of the bullet?

@gamecubekingdevon3 2 ай бұрын

As seen on the 7075 t6 + 6061t6 small sample that was wrapped in polyester curtain, the curtain catched the surface fragments from the 7,62x39

@July4-1776 6 ай бұрын

Great video. tell old boy to quit teacuping in the pistol and shoot like it's 2024

@deezTX 6 ай бұрын

been watchign your channel, very impressive and inventive. I was working on another project back when you were using various fabrics (firberglass), Thought... I was using Faraday fabric, which has copper, and nickel weaved in it, with the combonation of other fabrics and your processes, wonder if the metal contained would make a difference ? thanks

@Plastikdoom 6 ай бұрын

And oh you want data on vehicle aluminum armor? Look up the M113 that Devon was driving. Pretty sure nothing about it is still classified, it’s ancient for military gear. It’s also all aluminum and can stop .50 cal AP/light auto cannon from the front. Especially at a distance. And for a vehicle, especially light duty civilian type for affordability you can’t beat high alloy aluminum, especially of with a thin ceramic face and composite backer, for cost. Strength and reliability. That’s honestly your best and fastest, most affordable solution that’s reliable .just pray it doesn’t get ignited, as you aren’t gonna put it out, too much magnesium in it. That’s the down side…only time you’d really face that level threat. Fighting a full up military, so don’t know that it matters much. As you gonna lose, at a personal level anyways.

@gamecubekingdevon3 2 ай бұрын

M113 is 38mm (1,5inch) of 5083 if I remember

@SpeedBrake-qy5ym 6 ай бұрын

A full body shield LxWxH of 5’x2’x1.5” ? Or similar on wheels or skids? $$?

@Zoomerdaddy 5 ай бұрын

I've seen videos of people making level 3a armor with fiberglass and epoxy resin, what would happen if I add steel bars or ceramic tiles? Can i make a 3+ or 4?

@anthonysexplainervids6997 6 ай бұрын

Do you have a license for that minkey? 😊

@falconlb45 6 ай бұрын

What happened to the discord link, doesn't seem to be working anymore

@Techthisoutmeow 6 ай бұрын

discord.gg/RYHjC5hxqv that's weird, I set it to never expire. here's a fresh one.

@rexrodecolt 6 ай бұрын

Meow!

@bermudatriangle2036 2 ай бұрын

why do none of the discord invites work?

@Techthisoutmeow 2 ай бұрын

discord.com/invite/YYWuNNPncU here's a fresh one, I need to redo the old links

@MAZEMIND 6 ай бұрын

1st

@CharlesYuditsky 6 ай бұрын

Screw aluminium, the way it is done is to have a 1/2 inch facing of PEI 5 porcelain, 8 layers of Kevlar 29 and 1/4 inch of Ultra High Molecular Weight Polyethylene as a backing layer.

@vovin8132 6 ай бұрын

That's way too thick in the end, and you also need a foam insert behind the backing layer to dissipate the force of impact (which is like 3/8 thick if you get the high-end stuff). Also a chunk of UHMWP like in a cutting block is not the same as UHMWP armor that is composed of sheets melded together like kevlar. You would be better off with the porcelain and like 28 sheets of kevlar (which is level III+ on its own).