In modern decoration engineering, stainless steel is widely used. Stainless steel has the characteristics of high surface brightness, strong corrosion resistance and not easy to rust.

　　不銹鋼的主要組成的元素就是鉻元素，能夠說不銹鋼是一種鉻元素合金鋼。鉻含量越高，耐腐蝕性能越好.不銹鋼具有較高耐銹蝕性的緣由，是其中鉻合金元素的性質比鐵生動，它首失與環境中的氧化合，生成一層與基體結實分離的、致密的氧化膜層，即鈍伙膜。鈍化膜能很好地維護合金不受銹蝕。

　　The main element of stainless steel is chromium. It can be said that stainless steel is a chromium alloy steel. The higher the content of chromium, the better the corrosion resistance. The reason why stainless steel has higher corrosion resistance is that the properties of chromium alloy elements are more vivid than that of iron. It first lost the oxidation with the environment, and formed a layer of dense oxide film which is separated from the matrix firmly, that is, passive film. The passivation film can protect the alloy from corrosion.

　　不銹鋼按耐腐蝕的特性分為普通不銹鋼和不銹耐酸鋼兩種。普通不銹鋼不—定耐酸，而耐酸鋼普通都具有良好的耐腐蝕性。

　　Stainless steel can be divided into ordinary stainless steel and stainless acid steel according to its corrosion resistance. Ordinary stainless steel is not acid resistant, but acid resistant steel has good corrosion resistance.

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