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Question:

what is stainless steel?

i know theres steel in it but what else?

Answer:

Nickel, Chrome, others... [edit] To make ASTM A182A F316 (regular forged stainless steel), the required percentages are: 0.08%____Carbon 2.00%____ Manganese 0.045%___ Phosphorus 0.030%___Sulfur 1.00% ___Silicon 10-14%___Nickel 16-18%___Chromium 2-3%_____Molybdenum Heat treat - solution treat and quench Austenitizing/Solutioning Temp (min) - 1900°F Cooling media - liquid Quenching cool below 500°F The addition of chromium is (mostly) what makes it stainless... the other alloying elements provide it with other characteristics - toughness, weldability, temperature resistance, etc...
Chromium, nickel and molybdenum. Along with less carbon.
Corosion Resistant steel..... It does corrode... just at a slower rate then normal steel.
Corrosion resistant steel. Iron carbon alloy with a minimum of 10.5% chromium (Cr) content.

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