Originally Posted by
maddog34
info time... looks like it's needed... someone actually thinks that iron is ADDED to stainless... umm.... and the Nickel is added to promote better machining characteristics, not to limit corrosion... etc... chromium is the key to limiting corrosion... if eliminates oxidation past the very top of the material, thereby preventing rust... and 304 is SPENDY stuff.... 304...
https://connecteddiscourse.files.wor...tion.png?w=640
Since stainless is an alloy...or solid solution..., it doesn't matter if you say that iron is added to the alloying agents or the alloying agents are added to the iron. Po-ta-to, po-tay-to. Chromium
is added to limit corrosion but so is nickel and molybdenum. The nickel helps with machining but it also provides more corrosion resistance. If you start with nickel and add chromium, iron, molybdenum and some other stuff, you end up with a material that is far more resistant to corrosion...and is far more expensive.
304 isn't all that expensive.
Originally Posted by
maddog34
316 stainless is even more expensive, and has molybdenum added for improved strength...
...and for improved corrosion resistance. As is nickel.
Originally Posted by
maddog34
any "rust" found on a SS cable is surface buildup from cheap cable housings...the crystals grow into the areas between the strands, FROM the cable housings... or the seller lied about the cables....... imagine that, eh? the 15%+ chromium in the SS prevents oxidation of the iron, which is over 75% content in the 200 series steels... steel is mostly iron.... and i'm still chuckling about someone thinking there is copper in SS...
Stainless will rust in the presence of chlorides which can come from a variety of sources. I wouldn't assume that a rusted stainless cable is
only from the housing without considering other factors.