Comment on Tesla Cybertruck May Have A Rust Problem

• vinylshrapnel@lemmynsfw.com ⁨4⁩ ⁨months⁩ ago

  I guess there is still iron in it. Looks like they didn’t use an alloy with enough chromium for the application.

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  • Lucidlethargy@sh.itjust.works ⁨4⁩ ⁨months⁩ ago

    Tesla, cutting corners?! Say it isn’t so!

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  • nilloc@discuss.tchncs.de ⁨4⁩ ⁨months⁩ ago

    Well it has to be workable/formable, weldable and crack resistant under stress. Just welding most stainless mess with its ferrous properties.

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    • Peppycito@sh.itjust.works ⁨4⁩ ⁨months⁩ ago

      Forming it screws it up too. Work hardening after forging can make it magnetic.

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• lars@lemmy.sdf.org ⁨4⁩ ⁨months⁩ ago

  In addition to funny is this also actually true?

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  • Peppycito@sh.itjust.works ⁨4⁩ ⁨months⁩ ago

    Absolutely. Why would they call it less if it’s actually never? That would be exceptionally terrible marketing.

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    • lars@lemmy.sdf.org ⁨4⁩ ⁨months⁩ ago

      Sure, “less” means “fewer” or “not as much as”.

      But the suffix “-less” means “without”:

      • flawless: no flaws
      • spotless: no spots; clean
      • fearless: without fear

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      • Peppycito@sh.itjust.works ⁨4⁩ ⁨months⁩ ago

        So then it’s genius marketing. Stainless absolutely stains and rusts.

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      • Passerby6497@lemmy.world ⁨4⁩ ⁨months⁩ ago

        Reckless: without wrecks

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  • DanglingFury@lemmy.world ⁨4⁩ ⁨months⁩ ago

    Yeah. I have a small pocket knife i carry everywhere, it is stainless. I’ve had it for years, and typically bring it in the water with me clipped to my swim suit (incase i need to cut a tangled rope). I wash it like a dish with soap and water, i use it hard and put it away wet, and it has been fine for years and years.

    After all this, i took it on a single trip in salt water, it spotted with rust that night.

    I also have a sig938 sas which has a stainless slide. I keep that dry and oil it on occasion, and yet that one spotted with rust within a year despite me taking good care of it.

    Different grades of stainless make it different grades of rust resistant. Kind of like calling IP67 electronics like the iPhone 7 “waterproof” when they can only really withstand splashing

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