The excellent corrosion resistance of stainless steel is due to the formation of a passive film by chromium and its self-repairing function!
When chromium is present in stainless steel at 10.5% or more, rusting hardly occurs in general environments* (excluding coastal areas and environments exposed to chemicals). This is because the chromium in stainless steel combines with oxygen in the atmosphere to form a "passivation film," which coats the surface like a protective layer, preventing direct contact between the base metal and oxygen. By the way, this passivation film is incredibly thin, measuring only 1 to 3 nm (0.000001 to 3 millimeters), so it is naturally invisible to the naked eye. What’s remarkable about this passivation film is that it has a "self-repairing function." *For more details, please refer to the related links. For further inquiries, feel free to contact us.
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Taiwa Industries has been consistently involved in stainless steel and polishing since its establishment. Through our stainless steel polishing business and coil center operations, we have solved various challenges and provided optimal and high-quality products. We will continue to address issues related to stainless steel and expand its possibilities.
![[Column] What is Stainless Steel? The Encounter of Iron and Chromium, the Birth of Stainless Steel](https://image.mono.ipros.com/public/product/image/ef5/2000897883/IPROS02717074708150512237.png?w=280&h=280)
![[Processing Reference Example] Casing Screw Machining](https://image.mono.ipros.com/public/product/image/2088546/IPROS16021466541096188662.png?w=280&h=280)
