this post was submitted on 13 Feb 2024
367 points (94.6% liked)
Technology
59534 readers
3195 users here now
This is a most excellent place for technology news and articles.
Our Rules
- Follow the lemmy.world rules.
- Only tech related content.
- Be excellent to each another!
- Mod approved content bots can post up to 10 articles per day.
- Threads asking for personal tech support may be deleted.
- Politics threads may be removed.
- No memes allowed as posts, OK to post as comments.
- Only approved bots from the list below, to ask if your bot can be added please contact us.
- Check for duplicates before posting, duplicates may be removed
Approved Bots
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
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.
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.
Not the cheapest, there's 17-4 and 18-8 before 304.
There are a lot of grades of stainless, but they all can rust. What you're doing with your kettles is unlikely to cause rust, because you are actively cleaning them daily. Letting a contaminant sit on them and periodically get wet without being cleaned our dried is a worst case scenario, and also what constantly happens to cars.
https://www.unifiedalloys.com/blog/stainless-grades-families
Yeah and Musk used the chinesium (capitalist) grade, cheapest possible garbage
Probably
I am not an expert - just an avid knife freak - but in my experience "Stainless" means "Stain Less" not "Stain Resistent". Eg.
s35vnis 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...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.