The corrosion resistance of stainless steel tee depends on chrome, but because of the chromium is one part of the steel, so the protection method is not the same.

In chromium content reaches 10.5%, the atmospheric corrosion resistance of the stainless steel equal tee 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 surface of the rich chromium oxide protection, to prevent further oxidation. This kind of extremely thin oxide layer, through it you can see on the surface of the stainless steel equal tee natural luster, make the surface of the stainless steel equal tee has a unique. And, if damaged surface, exposed by the steel surface and atmospheric response to repair itself, to form the oxide "passivation membrane," continued protection.