in that fanboy forum linked elsewhere earlier they confirmed it’s a cheaper steel. My mind says 302 but that’s based on not much.
Comment on This Is Why Tesla’s Stainless Steel Cybertrucks May Be Rusting
nxdefiant@startrek.website 4 months ago
DeLorean is 304 Stainless. Cyber truck is 30? stainless. As in Tesla doesn’t want to say, which is why they write it “30X”.
given how hard the steel is purported to be, it’s likely a variant of 304N, instead of 304 or 304L.
HerbalGamer@sh.itjust.works 4 months ago
nxdefiant@startrek.website 4 months ago
Maybe, and likely, given all the other cuts they made, but as far as I know it’s not actually known, which is frustrating. That said the article calls it an SUV and isn’t exactly riddles with facts, so.
The pictures from the cybertruckowners forum show something on the surface causing discoloration, like road grime or dust disintegrating in the rain, not like rust forming on metal. I’ve restored a few rusty stainless kitchen knives in my day, absolutely abused ones, and even cheap stainless doesn’t rust like that.
sexual_tomato@lemmy.dbzer0.com 4 months ago
All we need is somebody to drive by a pressure vessel fabrication shop and get the panels zapped by a PMI gun. We’d know instantly.
grue@lemmy.world 4 months ago
There have been a lot of developments in stainless steel production in the 40ish years since the DeLorean came out, so I highly doubt it’s the same steel.
Which makes the fact that DeLorean managed to get it right but Tesla couldn’t all the more embarrassing.
nxdefiant@startrek.website 4 months ago
That’s what I’m trying to get across, it’s very unlikely Tesla got it wrong. Bare stainless will eventually rust, but not in a few days of freshwater rain, sheesh.
Siegfried@lemmy.world 4 months ago
300 are all austenitic*, they could have been heating it or either working it too much and sensitized it, both lowering its strength and its corrosion resistance
nxdefiant@startrek.website 4 months ago
Heh, even more reason to never buy version 1. I doubt they’re doing anything but pulling steel off a roll, cutting it, stamping it, and spot welding a reinforcing piece to the back.
sploosh@lemmy.world 4 months ago
Does marine grade stainless rust in the rain?
nxdefiant@startrek.website 4 months ago
Eventually, yes. Especially around salt. Not in 2 days though. Maybe take the trash click air article with some of that salt.
Nomecks@lemmy.ca 4 months ago
Someone just needs to XRF a panel
nxdefiant@startrek.website 4 months ago
Yes!
Hamartiogonic@sopuli.xyz 4 months ago
Even if you don’t have one an XRF gun, you can just visit a local junkyard and ask the owner to use theirs.
Pulptastic@midwest.social 4 months ago
304N is not marine grade. It is 304 with a little extra nitrogen for hardness.
Marine grade steels have molybdenum for chloride resistance like 316L.
Peppycito@sh.itjust.works 4 months ago
I was going to say that. 304 is the cheap “marine grade” sold at the hardware store that will rust. 316 is sold at the Chandelry and won’t rust.
To put it another way, 304 is freshwater stainless, 316 is ocean grade.