304不銹鋼因其卓越的耐腐蝕性往往被用著內(nèi)層（即直接與水接觸），201不銹鋼因?yàn)槟透g性較差，不能用著內(nèi)層，往往被用在保溫水箱的外層。但是201比304價(jià)格低廉，往往會(huì)被一些不良商家冒充304使用，用201不銹鋼制作的不銹鋼水箱使用壽命極短，往往1-2年就能被水腐蝕，給使用者留下安全隱患。

304 stainless steel because of its excellent corrosion resistance is often used in the inner layer (that is, direct contact with water), 201 stainless steel because of poor corrosion resistance, can not use the inner layer, is often used in the outer layer of the insulation water tank. But 201 than 304 the price is low, often will be used by some bad businesses pretend to be 304, with the stainless steel water tank made of 201 stainless steel service life is very short, often 1-2 years can be corroded by water, leaving safety risks to users.

不銹鋼水箱用到的304與201不銹鋼，表面通常為亞光。所以我們通過(guò)肉眼看、手觸摸的方式鑒別。肉眼看304不銹鋼具有很好的光澤發(fā)亮，手觸摸很順滑；201不銹鋼則顏色發(fā)暗 沒(méi)有光澤，觸摸有比較粗糙不光滑的感覺(jué)。另外將手沾濕水，分別觸摸2種不銹鋼板，觸摸后304板上的水漬手印比較容易擦除，201不容易擦除。  

Stainless steel tank used in 304 and 201 stainless steel, the surface is usually matte. So we identify it by the naked eye and touch it by the hand.naked eye see 304 stainless steel has a good luster, hand touch is very smooth; 201 stainless steel color is dark without luster, touch has a relatively rough not smooth feeling. In addition, touch the hand wet with water and touch two kinds of stainless steel plates respectively. Touch the water stain fingermark on the 304 board is relatively easy to wipe, and 201 is not easy to erase.

201是含錳較高,表面很亮帶有暗黑的亮,含錳較高容易生銹。304含鉻較多,表面呈現(xiàn)啞光,不生銹.兩種放在一起就有比較了。最重要的就是耐腐蝕性能不同,201的耐腐蝕性能很差,所以價(jià)格就要便宜很多.又因?yàn)?/font>201含鎳低，所以價(jià)格比304的低，于是耐腐蝕性能就不如304的了。

201 is high in manganese, the surface is very bright with dark bright, high in manganese is easy to rust.304 contains more chromium, the surface is matte, do not rust. The two kinds are put together to make a comparison. The most important thing is that the corrosion resistance is different, the 201 corrosion resistance is very poor, so the price is much cheaper. And because 201 contains low nickel, so the price is lower than 304, so the corrosion resistance is not as good as that of 304.