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submitted 10 months ago by L4s@lemmy.world to c/technology@lemmy.world

Tesla's Cybertruck may not be so stainless after all::'Literally bulletproof' but needs constant cleaning to stave off corrosion

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[-] homesweethomeMrL@lemmy.world 128 points 10 months ago

Lol. Tesla stock down 30% since June.

Tesla, seriously, that roaring sound that’s rising in pitch is y’all about to slam into the ground. Eject the dead weight already.

[-] diffcalculus@lemmy.world 18 points 10 months ago

zooms out 5 years

Up nearly 800%

[-] skyspydude1@lemmy.world 18 points 10 months ago

My dude, even legacy stocks that pay dividends like fucking Costco and Microsoft are up 250+% the past 5 years. The market has been absolutely bonkers the past 5 years, and acting like Tesla is some incredible investment and not just a meme gambling stock is pretty hilarious.

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[-] originalucifer@moist.catsweat.com 74 points 10 months ago

yet another feature a regular Car can do better than this truck. its pretty damn sad when your truck fails at basic vehicle properties, before you even get to what its supposed to be, 'truck'. kinnnnda comical how bad this thing is.

such sweet nectar the schadenfreude, i could live off it for days.

[-] TransplantedSconie@lemm.ee 50 points 10 months ago

I deliver to a Tesla dealership/lemon farm everyday, and they had one on display. It had a smudge on the driver side rear quarter panel that they never got buffed out.

[-] ShepherdPie@midwest.social 43 points 10 months ago

You don't buff these things. You have to regrain them by rubbing an abrasive material across the panels in one direction same as a DeLorean.

[-] shasta@lemm.ee 19 points 10 months ago

Yeah that certainly reinforces a sense of longevity. Just rub off part of the door every time you have to clean it.

[-] Plopp@lemmy.world 29 points 10 months ago

It's sad that there's nothing your can put on the metal, like something to paint on top of it or something. Like something clear, or in different colors even. Ah here I go again, being crazy with my imagination.

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[-] filister@lemmy.world 39 points 10 months ago

Imagine spending 80K on a truck that starts rusting in days. Oh the poor Elon Musk's s***ers. It might be a really hard blow to feel that betrayed by their idol.

This cybertruck fiasco is getting more ridiculous by the day.

[-] TheFriar@lemm.ee 16 points 10 months ago

What word is supposed to be censored there.

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[-] w3dd1e@lemm.ee 32 points 10 months ago

lol. Cybertrucks are looking like my sink.

They should invest heavily in Barkeepers Friend. Works pretty well on the sink.

[-] NuXCOM_90Percent@lemmy.zip 28 points 10 months ago

Yeah. My understanding is that Deloreans were shockingly rust resistant but were also panels specifically so that they could be replaced.

I don't know metallurgy/material science well enough to know if cybertrucks actually used good quality stainless steel or cut corners. And I can easily see a world where people assume the dirt is rust because of paranoia or just looking for internet drama/clout.

But... Rust or no rust, those cars are pretty fucked. Because they don't even have a clearcoat. And considering we are in the season where roads are covered with salt and sand and cars are constantly bombarded with a highly abrasive slurry at speed, those panels are going to see a LOT of wear and damage.

[-] Death_Equity@lemmy.world 36 points 10 months ago

Tesla uses SS301 stainless. DeLorean used SS304.

301 is cheaper, less resistant to corrosion, can resist more force applied to it before failure, formes better in stamping, doesn't tolerate high-temperatures as well.

My guess is they used 301 due to cost and forming properties. Supposedly they use 301 on the Starships, so bulk pricing would help keep production costs low. Had they used 304 the raw material cost and cost of production at volume would be higher but they would be less likely to have these corrosion issues, assuming they aren't welding the panels.

[-] Wogi@lemmy.world 21 points 10 months ago

SS301 is a great material. It's workable, ductile, and still plenty hard. It's absolutely perfect for work holding in an industrial spot welding environment.

Why on earth they'd use that for body panels is fucking beyond me. Ok, it's bullet proof, kinda, which is cool I guess? I've never been shot at in a car, I don't know anyone who's ever been shot at in car.

I know lots of people with cars that they don't like to rust. Or scratch tho. Seems like the bigger problem in car design honestly

[-] abhibeckert@lemmy.world 8 points 10 months ago* (last edited 10 months ago)

SS301 is a great material

Totally agree. But is this an appropriate use for it? I regularly have to use sandpaper to remove surface rust from my SS301 knife. And I don't leave that out in the rain. It's just surface rust, doesn't damage anything, but it is rust and it's very ugly.

Thankfully with a knife, it takes two seconds to remove the rust. With an entire car? And body panels with areas that are hard to get to? Honestly if I was going to buy a cybertruck I would paint it.

If you want "real" stainless, you want 316, but it's not as strong and would require significant modifications - making it thicker/heavier/more expensive/worse battery range/etc.

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[-] Cqrd@lemmy.dbzer0.com 8 points 10 months ago

Well, starships don't usually need to worry about rain storms

[-] Zron@lemmy.world 6 points 10 months ago

They do have a habit of blowing up tho.

Seems to be a theme with Elon’s contraptions.

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[-] gens@programming.dev 14 points 10 months ago

Paint, they always need paint. A lot of science went into that. https://www.youtube.com/watch?v=b_hgPinCZks

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[-] oatscoop@midwest.social 12 points 10 months ago

Even "good quality" stainless steel can easily rust, as anyone who's owned quality kitchen knives will tell you. Some stainless alloys are more resistant than others -- but exposed to the right conditions they all corrode.

[-] Copythis@lemmy.world 20 points 10 months ago

I saw one in person 2 days ago. I took a picture, and none of my coworkers think it's a real picture (or that I took it).

It was surreal. I could see it coming from WAY down the road and I was thinking to myself "there is absolutely no way I am seeing a cybertruck right now"

I am dumbfounded they actually made them. I still can't believe what I saw the other day

[-] gregorum@lemm.ee 19 points 10 months ago* (last edited 10 months ago)

To anyone who is even slightly surprised by this, my cat has turds in his cat box with higher IQs than you.

This applies to anyone currently holding stock in any company associated with Elon Musk. You are all dumb fucks, and deserve whatever is coming to you. this goes doubly for anyone working for any of these companies still.

Really, what’s wrong with you people?

[-] pivot_root@lemmy.world 10 points 10 months ago

Anyone holding stock in any Elon-directed company and expecting to make money at this point* is a dumb fuck. I don't think pre-emptively insulting people here is winning you any popularity, though.

* except by short selling; I applaud any risk takers tanking the value of those shares.

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[-] qjkxbmwvz@startrek.website 17 points 10 months ago

It's relatively common for nice metal bikes to go the unfinished metal route...if they're made of titanium.

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[-] n3m37h@sh.itjust.works 17 points 10 months ago

Real stainless steel does not rust. I brew beer and daily soak down my stainless steel sink/kettles daily. Even harsh chemicals (muritiac acid, chlorinated caustic soda) don't affect it.

[-] carzian@lemmy.ml 36 points 10 months ago* (last edited 10 months ago)

Theres no such thing as "real stainless". Stainless steel 304 is corrosion resistant, it's the cheapest and most common. 316 is better at corrosion resistance and is "marine grade" since it will hold up better to salt water. 316L is some of the best at resisting corrosion, it's more expensive than 304 and is used in lab and surgical equipment. There are a lot of other types, like 309 for higher heat applications, etc.

Cybertruck is probably made from 304.

Definately not supprised that cybertrucks are having this issue. Especially with road salt in the winter. I'm sure the engineers at Tesla saw this coming too.

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[-] yojimbo@sopuli.xyz 14 points 10 months ago

I am not an expert - just an avid knife freak - but in my experience "Stainless" means "Stain Less" not "Stain Resistent". Eg. s35vn is relatively high quality stainless knife steel - that does not mean it ain't gonna pickup stains - all mine did... I suspect one of the differences between my knifes / Elons Cybertruck vs. your cookware is that your cookware is mirror polished while my knives and the cybertruck are sporting "satin finish" which looks quite esthetically first 5 mnts - but is quite inpractical...

[-] Siegfried@lemmy.world 6 points 10 months ago

What makes stainless steel stainless is that it corrodes quickly, uniformly and forms a dense rich en Cr carbide coating (I dont know how it is called in english). This reduces the rate at which it corrodes enormously. This is the same on most "corrosion resistant" metals and alloys, like aluminium, titanium and zirconium.

There are multiple grades of SS, some of them are better at halting corrosion than others. And given the right environment (chemical + temperature) it will ultimately corrode.

Some geometrical obstacles* can produce other, more localized, types of corrosion... again, sorry, I dont know the technical words in english.

[-] redcalcium@lemmy.institute 17 points 10 months ago

Tesla is just recognizing that each cybertruck owner has different color preferences, so they deliver the cybertruck without any paint or coating so the owners can coat it themselves /s

[-] BumbleBeeButt@lemmy.zip 16 points 10 months ago

But really who cares, we are not forced to buy these cheesy blobs of cheap grade stainless. Let the tech bros take one for the team.

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[-] carl_dungeon@lemmy.world 15 points 10 months ago
[-] OpenHammer6677@lemmy.world 25 points 10 months ago
[-] carl_dungeon@lemmy.world 14 points 10 months ago* (last edited 10 months ago)

Yeah it’s like “I actually like getting brutally raped at the dealership, excited to get my backside exploded!”

[-] FangedWyvern42@lemmy.world 10 points 10 months ago

Insane levels of copium.

[-] filister@lemmy.world 6 points 10 months ago

Yes this forum sounds a lot like Elon's exclusive club, where you are not allowed to say anything critical of the godfather or his products.

[-] atmur@lemmy.world 20 points 10 months ago

One of the replies in that thread:

I’m know I’m a weirdo but I actually kinda like the corrosion and hopefully the associated patina that will come with it.

Wow.

[-] BabyVi 10 points 10 months ago

The cope is strong with that one.

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[-] holycrap@lemm.ee 9 points 10 months ago

Holy shit that's not insignificant! Those things are going to be piles of rust in just a few years.

Insane

[-] Donjuanme@lemmy.world 12 points 10 months ago

Can't wait to see what happens when one gets dinged by road gravel, it's going to be even uglier.

Oh and about that 5-6k coating that will prevent the rust? It'll just prevent you from seeing the rust, don't worry, the rust will get there, it always does, that's one of a dozen reasons why steel has been moved away from for decades.

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[-] Abnorc@lemm.ee 11 points 10 months ago

Tesla has been pretty good at selling vehicles, even really expensive ones. This one has been kind of bizarre though. From the massive and strange body to the issues in production, I'm not sure if we'll start seeing these become more common on the road.

[-] AnUnusualRelic@lemmy.world 8 points 10 months ago

Isn't that the butler's job?

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this post was submitted on 13 Feb 2024
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