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Stainless steel

Stainless steel is a type of steel that is not easy to rust. In fact, some of stainless steel materials feature both stainless and acid-resistance (corrosion resistance).

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Stainless steel

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  • Stainless steel is a type of steel that is not easy to rust. In fact, some of stainless steel materials feature both stainless and acid-resistance (corrosion resistance). The stainlessness and corrosion resistance of stainless steel are thanks to the formation of a chromium-rich oxide film (passivation film) on its surface. This stainlessness and corrosion resistance are relative. The results show that the corrosion resistance of steel in a weak medium such as atmosphere and water, as well as an oxidizing medium such as nitric acid increases with the increase in chromium content in steel. When the chromium content reaches a certain percentage, the corrosion resistance of steel changes suddenly, that is, from easy to rust to not easy to rust, from no corrosion resistance to corrosion resistance.

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