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>There's also a absolute ton of stainless alloys, no idea which one they selected for the exterior panels. 301, a less expensive option with very poor corrosio
by elil17 3y ago
>There's also a absolute ton of stainless alloys, no idea which one they selected for the exterior panels.
301, a less expensive option with very poor corrosion resistance compared to other stainless steels! 304, which is more corrosion resistant, is used for unpainted train cars, and those aren't even exposed to road salt!
- deleted 3y ago[deleted]
- fastball 3y agoWhat's your source on it being 301 stainless? All I could find was "30X" – which could be anything.
- elil17 3y agohttps://www.sae.org/news/2020/06/tesla-cybertruck-stainless-steel https://www.sae.org/news/2020/06/tesla-cybertruck-stainless-... From the Society of Automotive Engineers article: "'Tesla’s strategy with this truck is very interesting," observed Dr. David Matlock, professor emeritus at the Colorado School of Mines’ Advanced Steel Processing and Products Research Center. Reviewing Musk’s public comments on Cybertruck online, Matlock surmises that the material is 'very likely a modified version of the lean-alloyed austenitic 301 alloy.'" Two other things line up for me: the rate of rust is right and I think if they were using 304 they'd want to advertise it as 304, not 30X.
- fastball 3y agoI don't think we should say "it's 301" based on the "surmising" of a 3rd party who didn't look at the steel itself but rather "reviewed musk's public comments". He could very well be right, but that is definitely speculation rather than fact.
- elil17 3y agoWell I haven't done the depth of research he has, but I believe a key piece of evidence is that in the initial Cybertruck announcement Musk said the Cybertruck uses the same steel as Starship. At that time, Starship prototypes were using 301.
- sonicanatidae 3y agoIf it was the best grade of 30X steel, do you think the would advertise it as 30X? C'mon.