2014年12月23日星期二

304 stainless steel corrosion

Corrosion resistance of 304 stainless steel mainly depends on its alloy composition (chromium, nickel, titanium, silicon, aluminum, manganese, etc.) and internal organizational structure, play a major role in the chromium.
Chromium has a high chemical stability, can form a passive film on the steel surface, the metal with the outside world to isolate and protect steel from oxidation and increase the corrosion resistance of steel. After the destruction of the passive film, corrosion resistance on the decline.
Can bear a variety of acid etching, such as: oxalic acid, sulfuric acid - iron sulfate, nitrate, nitric acid - hydrofluoric acid, sulfuric acid - copper sulfate, phosphoric acid, formic acid, acetic acid, etc.,
Widely used: chemical, food, pharmaceutical, paper, oil, atomic energy, construction, kitchen utensils, cutlery, vehicles, household appliances. 304 stainless steel plate surface appearance as well as the possibility of using diverse good corrosion resistance, long-term durability than ordinary steel. 304 stainless steel high strength, and therefore the possibility of the use of thin, high temperature oxidation and strength, and therefore resistant to fire, room temperature processing, which is easy to plastic processing
Because the surface treatment is not necessary, so simple, easy maintenance, clean, high-quality finish, good weldability.

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