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Food grade stainless steel kitchen equipment selection 304 or 201

Food grade stainless steel kitchen equipment selection 304 or 201

A,  Simple introduction of 304 and 201 

1、Introduction of 201 material

201 stainless steel sheet has certain acid resistance, alkali resistance, high density, polishing without bubbles, no pinholes, etc. The chromium content below 18% and low nickel content does not reach a balance and the formation of ferrite, for this reason, the chromium content in 200 series stainless steel down to 13.5% to 15%, in some cases down to 13% to 14%, its corrosion resistance is not able to 304 and other similar steel Compared to the.


2、Introduction of 304 material 

In the air or chemically corrosive media can resist corrosion of a high-alloy steel, stainless steel is a beautiful surface and good corrosion resistance, without having to go through surface treatment such as color plating, and play the surface properties inherent in stainless steel, used in many aspects of steel, commonly known as stainless steel. Corrosion resistance, flexibility, brightness are very good.


B, The identification of various materials

1, there is a special potion agent, a battery drop of potion in 201 or 304 stainless steel plate, the two ends of the battery connected to the wire end in the potion end touched on the wall, the color of the potion is red is 201, the color of the potion is yellow is 304. this method is simple and practical. This potion is very cheap, you can buy on Taobao.

2, spectral analysis or chemical analysis, which is the most accurate way. But this instrument is more expensive.


C, The difference between 304 and 201

1, the difference in corrosion resistance

As 304 and 201 contain different elements, the degree of corrosion resistance is also different, 304 than 201 contains more nickel elements, how much nickel, and ultimately determine the ability of the plate to prevent rust. To put it simply 304 is often used outdoors, its performance is not easy to rust, 201 is generally used indoors, if placed outdoors for a long time will rust, the right thing in the right place will be able to play out its own great value.


2、Brightness difference

201 stainless steel contains manganese elements, but 304 does not; in terms of color, 201 stainless steel because of manganese elements color will be darker than 304, 304 to white brighter.


3、Price difference

304 stainless steel market price to be more expensive, 201 than 304 to be cheaper, depending on their specific budget and specific needs, choose the right price on the line.


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