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    碳鋼和不銹鋼最明顯的區別是耐腐蝕的能力。碳鋼和不銹鋼都含有鐵,當暴露在環境中時會氧化,產生銹蝕。但不銹鋼中添加了鉻元素,當鉻遇到氧,會形成一層透明的鈍化膜,使其比碳鋼更耐腐蝕。而碳鋼不具有足夠的鉻以形成鈍化膜,會導致氧與鐵結合,形成氧化鐵,氧化鐵會不斷進行氧化,進而加快其銹蝕。因此,如果耐腐蝕性是關鍵因素,那么就一定要選擇不銹鋼材料。

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