不銹鋼基本都含有一種很重要的元素：鎳。這也是201和304很大的區別之一，201的鎳含量很低，幾乎沒有。部分人區別不銹鋼就是用磁鐵吸一下，能吸上來的就不是不銹鋼，但是這個辦法很籠統也不全面，更不嚴謹。通常不銹鋼都有其物理性能，201的硬度比較高，比304更硬。從現在市場售價來看，201的不銹鋼市場價格與304要低。201雖然其性能一般，但是可以表面處理后在出售，因為其價格比較低，一般應用在室內的裝修，其性能一般能滿足簡單的的裝飾需要。
Stainless steel basically contains a very important element: nickel. This is also one of the big differences between 201 and 304, which is very low in nickel and has almost no nickel. Some people distinguish between stainless steel is to use a magnet suction, can suck up is not stainless steel, but this method is very general and not comprehensive, more not rigorous. Usually stainless steel has its physical properties, 201 hardness is higher, harder than 304. From the current market price, 201 stainless steel market price and 304 to be lower.201 Although its performance is general, but can be sold after surface treatment, because its price is relatively low, generally used in indoor decoration, its performance can generally meet the needs of simple decoration.
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