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在仪器、医疗器械、工具和食具等金属制品中,有些制件是用不锈钢制作的。不锈钢也称特种合金钢。从种类分,有铬不锈钢、铬镍不锈钢和铬锰不锈钢等。一般来说,不锈钢在氧化性介质中,在各种浓度的硝酸中,在浓硫酸、铬酸中是耐腐蚀的,在淡水和一般大气中也是耐腐蚀的。不锈钢所以具有这种较高的腐蚀能力,主要是钝化作用的结果。因为碳钢在多数介质中是容易锈
Some of the metal parts, such as instruments, medical devices, tools and utensils, are made of stainless steel. Stainless steel is also called special alloy steel. From the type of points, a chromium stainless steel, chrome-nickel stainless steel and chrome-manganese stainless steel. In general, stainless steel is resistant to corrosion in concentrated nitric acid, concentrated sulfuric acid, chromic acid, and in fresh water and the general atmosphere in an oxidizing medium. Therefore, stainless steel has such a high corrosion capacity, mainly the result of passivation. Because carbon steel is prone to rust in most media