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HSD Tank Plate
Stainless steel is an alloy of Iron with a minimum of 10.5% Chromium. Stainless steel also contains varying amounts of Carbon, Silicon and Manganese.
Stainless steel, any one of a family of alloy steels usually containing 10 to 30 percent chromium. In conjunction with low carbon content, chromium imparts remarkable resistance to corrosion and heat.
Other elements, such as nickel, molybdenum, titanium, aluminum, niobium, copper, nitrogen, sulfur, phosphorus, or selenium, may be added to increase corrosion resistance to specific environments, enhance oxidation resistance, and impart special characteristics.
Stainless steels do not suffer uniform corrosion, like carbon steel when exposed to wet environments. Unprotected carbon steel rusts readily when exposed to the combination of air and moisture. The resulting iron oxide surface layer (the rust) is porous and fragile.
Since iron oxide occupies a larger volume than the original steel this layer expands and tends to flake and fall away, exposing the underlying steel to further attack.
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