“不銹鋼”一詞不僅僅是單純指一種不銹鋼，而是表示一百多種工業不銹鋼，所開發的每種不銹鋼都在其特定的應用領域具有良好的性能。成功的關鍵首先是要弄清用途，然后再確定正確的鋼種。和建筑構造應用領域有關的鋼種通常只有六種。它們都含有17～22%的鉻，較好的鋼種還含有鎳。添加鉬可進一步改善大氣腐蝕性，特別是耐含氯化物大氣的腐蝕。 The term "stainless steel" not only refers to a kind of stainless steel, but also to more than 100 kinds of industrial stainless steel, each type of the stainless steel developed has good performance in its specific application field. The key to success is first to understand the purpose, and then to determine the right steel type. There are usually only six kinds of steel related to the application field of architectural construction. They all contain 17 to 22% chromium, and the better steel species also contains nickel. The addition of molybdenum can further improve the atmospheric corrosion resistance, especially the corrosion resistance of the chloride-containing atmosphere. 原料 raw material 不銹鋼金屬是鎳、鐵礦石、鉻、硅、鉬等原料熔在一起形成的。不銹鋼金屬含有多種基本化學元素，當它們融合在一起時，會形成一種強大的合金。 Stainless steel metal is nickel, iron ore, chromium, silicon, molybdenum and other raw materials fused together. Stainless steel metals contain a variety of basic chemical elements that, when fused together, form a powerful alloy. 不同比例的不銹鋼元素——鐵、鎳、鉻、鉬和碳（以及其他）——決定了不銹鋼的類型。鐵與其他材料的比例會影響保護氧化層的強度、金屬對特定腐蝕物的抵抗力以及其他一些機械性能（硬度、熔點、剪切模量等）。 Different proportions of stainless steel elements —— iron, nickel, chromium, molybdenum and carbon (and other) —— determine the type of stainless steel. The ratio of iron to other materials can affect the strength of the protective oxide layer, the resistance of the metal to specific corrosion materials, and some other mechanical properties (hardness, melting point, shear modulus, etc.). 這些不同比例的不銹鋼成分產生不同類型的不銹鋼合金。每個獨特的組合稱為不銹鋼的“等級”——例如 304 級不銹鋼、316 級不銹鋼或 420 級不銹鋼。 These different proportions of stainless steel components produce different types of stainless steel alloys. Each unique combination is called a "grade" of stainless steel —— such as 304 stainless steel, 316 stainless steel or 420 stainless steel.
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