201/2B冷軋不銹鋼板霧面 工程裝修板材別墅酒店 精密剪板加工

“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(yè)不銹鋼，所開發(fā)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.

201不銹鋼板主要用于做裝飾管,工業(yè)管,一些淺拉伸的制品.201不銹鋼板具有與不穩(wěn)定的鎳鉻合金304相似的抵擋一般腐蝕的能力。201不銹鋼板在碳化鉻程度的溫度范圍中的長時間加熱可能會影響合金321不銹鋼板和347在惡劣的腐蝕介質(zhì)中的。201不銹鋼板主要用于高溫應用，高溫應用要求材料有強的抗敏化性，以防止在較低溫度的粒間腐蝕。

201 stainless steel plate is mainly used for decorative pipe, industrial pipe, some shallow stretch products. The 201 stainless steel plate has the ability to withstand general corrosion similar to the unstable nickel-chromium alloy 304. The prolonged heating of 201 stainless steel plates in the temperature range of chromium carbide degree may affect that of alloy 321 stainless steel plates and 347 in harsh corrosive media.201 stainless steel plates are mainly used for high temperature applications that require strong antisensitization resistance to prevent intergranular corrosion at lower temperatures.

201不銹鋼的物理性能為20℃時的密度7.93kg/dm3，熔點1398~1453℃，0℃~100℃的比熱容為0.50kJ/(kg.K)，100℃的熱導率為16.3W/(m.K)，0℃~100℃的線膨脹系數(shù)為15.7×10-6/K，20℃的電阻率為0.69.mm2/m，20℃的縱向彈性模量為197kN/mm2，無磁性。

The physical performance of 201 stainless steel is density of 7.93 k g/dm3 at 20℃, melting point of 1398~1453℃, specific heat capacity of 0℃ ~100℃ is 0.50kJ/(kg.K), thermal conductivity of 100℃ is 16.3W/(m.K), linear expansion coefficient of 0℃ ~100℃ is 15.710-6 / K, resistance of 20℃ is 0.69.mm2/m, longitudinal elastic modulus of 20℃ is 197 kN/mm2, no magnetism.

不銹鋼不生銹的主要原因是它含有10.5%以上的鉻元素，這個元素的存在讓不銹鋼在發(fā)生氧化反應時，表面形成一層鈍化膜，起到隔絕空氣的作用，鋼或鐵接觸不到氧氣，自然就不會發(fā)生反應生銹了。

The main reason why stainless steel does not rust is that it contains more than 10.5% chromium element, the existence of this element makes stainless steel in the oxidation reaction, the surface forms a layer of passivation film, play the role of the air isolation, steel or iron can not contact oxygen, naturally will not react to rust.

不銹鋼也不是一直不會生銹的，外部的儲存環(huán)境因素非常重要，在氣候干燥、通風條件好的情況下不會生銹，如果是連續(xù)的陰雨天氣，或者是空氣中的酸堿度偏高就很容易生銹，潮濕陰暗的環(huán)境中呆的時間久了也很容易生銹。

Stainless steel is not always will not rust, external storage environment factors are very important, in the dry climate, good ventilation conditions will not rust, if it is continuous rainy weather, or the acidity in the air is easy to rust, wet and dark environment for a long time is also easy to rust.

不銹鋼會不會生銹還有一個更重要的因素是看里面的鎳（Ni）含量，鎳能擴大鈍化范圍,提高耐蝕性,尤其在非氧化性介質(zhì)(如稀硫酸)中。

A more important factor in whether stainless steel will rust is to see the nickel (Ni) content inside, which can expand the passivation range and improve corrosion resistance, especially in non-oxidizing media (such as dilute sulfuric acid).