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Question:

i know stainless steel don't rust, does that go the same for just regular steel..?

does regular steel rust? or is it all the same.

Answer:

Dear, Thank you, am also fine like you then dear yeah is the same.
Steel is an alloy of Iron and Carbon. The more carbon you put in, the harder the steel and the more rust resistant. Steel will rust because it is not coated, like stainless is.
Rusting is what steel, or any iron alloy, does best. Stainless steels rely on a small amount of either nickel or chromium, or occasionally some other element, to protect it. What these do is they actually oxidize faster than the iron does but this oxidation forms a microscopically thin, effectively invisible, but very tough coating of oxide that then protects the rest of the metal.
There are dozens of types of steels, some stainless and some not. They differ a lot in their chemical composition and in how they're made (especially heat treating methods). They all vary in their strength, working properties and corrosion resistance. Regular steel (technically carbon steel--mostly iron, with a little bit of carbon) rusts quite badly if unprotected and in the right environmental conditions i.e. humidity/moisture. The iron in regular steel reacts with oxygen to form iron oxide--the orange/red stuff we call rust. Iron oxide is a loose and porous material which provides no protection to the underlying steel, which is why rusted regular steel will continue to rust. Stainless steel, in addition to containing iron and carbon, contains chromium as a component--and it's the chromium that is important for corrosion protection. To be fair, even stainless steel rusts but what happens is that it's the chromium that reacts with oxygen to create a microscopically-thin layer of chromium oxide. This layer is very tough and actually protects the uncorroded steel, preventing further corrosion. Broadly speaking, the higher the chromium content, the more corrosion resistant the stainless steel.

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