Stainless steel butterfly valves under what conditions are easy to be eroded? Stainless steel butterfly valve with atmospheric oxidation resistance ( Stainless) , at the same time also has the medium containing acid, alkali, salt corrosion resistant ability, The corrosion resistance) 。 The size of the corrosion resistance of stainless steel butterfly Industrial Valves is used with stainless steel material is chemical composition, using conditions and environmental medium type and change. Such as 304 stainless steel butterfly Industrial Valves, in a dry clean atmosphere, have absolutely fine rust corrosion resistance, but in the coastal areas, in contains a great deal of sea salt fog, will soon be rusty. 316 stainless steel butterfly valves are good. Stainless steel butterfly valve is to rely on stainless steel material surface to form a layer of a very thin and fine and stable solid rich chromium oxide film ( Protective film) To prevent the oxidation of oxygen infiltration, continue, and ability to resist corrosion. If for some reason, the film has been continuously destroyed and air or oxygen atoms in the liquid iron atoms will constantly infiltration or metal separation out unceasingly, forming loose iron oxide, stainless steel butterfly valves are also constantly rust. Generally the chromium content in stainless steel is generally not less than 12%, high and even up to 18%. After adding elements such as chromium stainless steel fluorine-butterfly butterfly Industrial Valves, can change the performance of the steel on the surface of steel are more likely to generate a dense layer of oxide film and so on, thus greatly improve the ability of corrosion resistant stainless steel butterfly valve.
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