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why should stainless steel require pfas?
by stop50 3y ago
why should stainless steel require pfas?
- conse_lad 3y agoTo provide additional resistance to corrosion/staining.
- yetanotherloser 3y agoThat sounds unlikely. It's not how stainless steel works; to bond a coating to the surface of the stainless you have to fight the stainlessness pretty hard.
- galangalalgol 3y agoOne of the best indicators for not so stainless stainless steel is a coarse texture to aid in that bonding. Even some fairly expensive brands of vacuum flask exhibit this. Only way to be sure that I know of is a knife.
- bornfreddy 3y agoYou mean by scraping it and seeing if it rusts, or something else?
- jdietrich 3y agoGenerally, the easiest way is with a magnet. The most corrosion-resistant of the common stainless steels are austenitic. These steels are not ferromagnetic, or very weakly ferromagnetic if they have been cold worked. Cheaper and less corrosion-resistant ferritic stainless steels are strongly ferromagnetic. Martensitic stainless steels are less corrosion resistant than austenitic steels and are ferromagnetic, but they're used for good reason. Unlike other types, martensitic steels are hardenable through heat treatment, making them the only suitable choice for many sharp-edged tools or parts subject to severe abrasion. Stainless steel cutlery is most commonly an 18/0 ferritic grade, but premium cutlery may be an 18/10 austenitic. Kitchen knives are invariably martensitic, because ferritic or austenitic grades wouldn't hold a sharp edge.
- xenonite 3y agoWell there wasn’t any PFAS with the stainless steel straws.
- c4mpute 3y agoStainless steel is expensive, roughly a factor of 10 compared to plain steel. The reason is that Chromium is expensive. You can use low-chromium not-so-stainless steel if you then coat it with transparent paint containing among other things, PFAS, and save a ton of money on the material. Edit: the prototypical stainless steel is Cr/Ni 18/10 with 18% chromium and 10% nickel, aka V2A or 1.4301
- ThunderSizzle 3y agoSounds about right. Most grills out here are $200-400, but will rust and fall apart within a couple years in my climate (humidity is insane here). For $2000-4000, you can buy real stainless steel grills that are warrantied to last 15+ years, not 1 year.
- Forgeties79 3y agoHard to sell people on spending 10x the cost when they can just buy, abuse, replace after 3-5 years what they already have.
- ThunderSizzle 3y agoCertainly. Especially when they load the cheap stuff with all the useless Bluetooth/wireless smart phone app crap. I guess people think a crappy grill with flashy widgets and an app is the next best thing. Or maybe it's what companies think people want.
- Forgeties79 3y agoI mean I have a pretty standard $250 or so Weber. No bells and whistles, no apps. It takes propane and has enough surface for me to do 8 patties comfortably and has a small rack above it for things that just need to be warmed up more or less. I like having things that last but it's going on idk...year 4 now? And I just need to replace grates at this point. I just can't see myself buying a $1000+ grill because I don't grill every day/week and the $250 has done perfectly well for me. I don't think it's safe to assume tons of folks want bluetooth for their grill and that's what drives them to go cheap.
- yetanotherloser 3y agoWhere did someone suggest it did?
- wahnfrieden 3y agoThe article suggested it is a concern, and then resolved the concern.
- tomxor 3y agoSome pretty nasty accidents have already happened with stainless steel straws... doesn't take much imagination.