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That doesn't smell right. I've got 15 year old knives that have never once shown signs of rust. A pair of old scissors left in the rain rusted in under a day.
by peteradio 5y ago
That doesn't smell right. I've got 15 year old knives that have never once shown signs of rust. A pair of old scissors left in the rain rusted in under a day. That puts the factor to closer to >10000 than 10 or 100...
- soperj 5y agoYou leave your knives outside?
- phkahler 5y agoKnives tend to get washed.
- frosted-flakes 5y agoAnd immediately dried.
- thisisnico 5y agoMy knives started showing some rust spots. I thought there must be something wrong with the knives, but I realized after googling, it was something wrong with how I was washing the knifes... I left it in a tub of very hot water and soap for a day, did this multiple times, viola, rust spots.
- deleted 5y ago[deleted]
- sgillen 5y agoMaybe if you want to invalidate those studies you can try leaving the knives out in the rain 10-100 days in a row!
- mardifoufs 5y agoThere are different grades of stainless steels. The common, "construction" grade stainless steels usually rust albeit very slowly. And while some of them are basically impervious to corrosion, they are usually way more expensive or have a lot less tensile strength. I don't know about knives specifically but it wouldn't surprise me if those more corrosion resistant grades are what's used to make them.
- LoveMortuus 5y agoAll correct. Stainless steel is 'created' by adding chrome and a few other materials depending on the desired properties. But despite that it will still rust. I think a good analogy world be eating healthy, you'll probably live longer then soon-to-be who doesn't eat healthy but in the end both will die and seize to exist. Material science is incredibly interesting field and I think it will play a huge role in the future. It already does.
- sokoloff 5y agoWord tip: “cease to exist” rather than “seize”
- LoveMortuus 5y agoNow that you said it, it totally makes sense, because too seize, means to take away as in: The police seized my laptop. Thanks ^^
- brandmeyer 5y agoExample: The Gateway Arch was surfaced with a stainless steel alloy, and it is suffering some corrosion problems today.
- dominojab 5y agothey rust if you have stainless still that havent been chrome or nickel plated leave them in the rain for a season or two.
- _jal 5y agoThere are different grades of steel, doped with all sorts of additives, depending on the desired traits. The most corrosion-resistant variant today used in knives would be one of the nitrogen steels, like Nitro-V. https://knifesteelnerds.com/2019/09/23/nitro-v-its-properties-and-how-to-heat-treat-it/ https://knifesteelnerds.com/2019/09/23/nitro-v-its-propertie... But they all corrode, eventually. If you want a true corrosion-resistant metal that stays (kinda) sharp, look at one of the cobalt alloys like Stellite.
- AceyMan 5y agoYou may like SPY27 if cobalt is what you seek. (=> new steel which just dropped <small_value> weeks ago.) /Acey