534
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 15 Feb 2024
534 points (95.9% liked)
News
23659 readers
3423 users here now
Welcome to the News community!
Rules:
1. Be civil
Attack the argument, not the person. No racism/sexism/bigotry. Good faith argumentation only. This includes accusing another user of being a bot or paid actor. Trolling is uncivil and is grounds for removal and/or a community ban. Do not respond to rule-breaking content; report it and move on.
2. All posts should contain a source (url) that is as reliable and unbiased as possible and must only contain one link.
Obvious right or left wing sources will be removed at the mods discretion. We have an actively updated blocklist, which you can see here: https://lemmy.world/post/2246130 if you feel like any website is missing, contact the mods. Supporting links can be added in comments or posted seperately but not to the post body.
3. No bots, spam or self-promotion.
Only approved bots, which follow the guidelines for bots set by the instance, are allowed.
4. Post titles should be the same as the article used as source.
Posts which titles don’t match the source won’t be removed, but the autoMod will notify you, and if your title misrepresents the original article, the post will be deleted. If the site changed their headline, the bot might still contact you, just ignore it, we won’t delete your post.
5. Only recent news is allowed.
Posts must be news from the most recent 30 days.
6. All posts must be news articles.
No opinion pieces, Listicles, editorials or celebrity gossip is allowed. All posts will be judged on a case-by-case basis.
7. No duplicate posts.
If a source you used was already posted by someone else, the autoMod will leave a message. Please remove your post if the autoMod is correct. If the post that matches your post is very old, we refer you to rule 5.
8. Misinformation is prohibited.
Misinformation / propaganda is strictly prohibited. Any comment or post containing or linking to misinformation will be removed. If you feel that your post has been removed in error, credible sources must be provided.
9. No link shorteners.
The auto mod will contact you if a link shortener is detected, please delete your post if they are right.
10. Don't copy entire article in your post body
For copyright reasons, you are not allowed to copy an entire article into your post body. This is an instance wide rule, that is strictly enforced in this community.
founded 2 years ago
MODERATORS
Stainless doesn't rust. Stainless alloys do. Knives are an alloy because they need certain properties to be able to sharpen them properly and hold an edge.
Medical stainless doesn't rust and whatever the hell my kitchen sink is doesn't either.
"Surgical" stainless - a marketing term - will rust simply because it's still an alloy of chromium and steels - it just takes far longer than the higher carbon steel alloys because of the lower carbon content. And yes, scalpel blades are made from high carbon stainless alloys that WILL rust if not properly stored - they are single use items and tossed when done being used once.
Your stainless sink is probably made from some 304 stainless alloy due to it's deep draw properties thanks to the extra nickle content. Things marked "Surgical" stainless would fall into this type of alloy. But 300 series stainless steels still contain about .05% carbon which is still enough to cause eventual rusting or staining.
You do know that more than scalpels are used right? Things that are put into autoclaves and used over and over and over again.
Marine stainless will absolutely rust. I bet surgical stainless will to next to the ocean.
Yes, yes it will. Since "surgical stainless" is a marketing hype term, (just like something marked "billet" or "military grade"), it's just a lower carbon/higher nickle content stainless. Marine stainless steels are most often cheaper 300 series steels.
I never said "surgical stainless". I said medical, as in the tools that are used in the medical space. These are typically reused after going through an autoclave.
Medical grade and surgical grade are just marketing terms. It's all 304 and 316 (sometimes 440 or 420)
There are ASTM standards for biocompatible metals.
https://www.researchgate.net/figure/Corrosion-morphologies-of-316L-stainless-steel-after-exposed-in-South-Sea-atmospheric-for_fig2_325407491
All stainless steels are alloys.
You're correct, I should have said "some"
Good knives rust, bad knives don't. You need high iron to hone a perfect edge properly. You can still resharpen a shitty knife, your grocery butcher will likely do it for free, but it will never have the same edge as a properly honed good knife.
Do you hone it 1000 times, knife sama?
Just quickly before use. If you keep up with it, you rarely ever need to actually sharpen it.