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Credibility ,The corrosion resistance of the stainless steel flange depends on chrome, but because of the chromium is one part of the steel, so the protection method is not the same. In the chromium content of 11.7% or more, atmospheric corrosion resistance of steel increased significantly, but the chromium content is higher, although still can improve the corrosion resistance, but not obvious. Reason is that with chromium alloying of steel processing, change the type of surface oxide became similar to that of pure chromium oxide is formed on the metal surface. This tight adhesion of the rich chromium oxide protection table surface, to prevent further oxidation. This kind of extremely thin oxide layer, you can see on the surface of the steel through natural luster, make the surface of the stainless steel flange has a unique.
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