What is the difference between the stainless steel insulation Cup 304 and the 201

- Jun 24, 2018-

Stainless steel insulation cups generally have 201202 and 304 stainless steel, the most common two are 304 and 201 stainless steel. Although the material is different, the stainless steel insulation Cup, which is produced and processed by the two materials, looks the same. The ordinary people can't recognize it. Even the people who are engaged in the stainless steel industry may not be able to distinguish 304 and 201 of the stainless steel.

It can be judged from the following points.

1.304 stainless steel has high corrosion resistance and high price: the essential difference between 201 and 304 stainless steel is mainly manifested in the different elements contained in them. 304 stainless steel corrosion resistance and stamping performance is far better than 201, and 304 stainless steel generally used in the environment complex, the need for corrosion resistance of the place, 201 for environmental requirements is not very high, or the stainless steel material requirements are not high.

2.304 stainless steel prices are higher: in terms of price, 304 is also far higher than the 201 price. Because the 304 quality is better than the 201 stainless steel, and 304 is imported stainless steel plate, 201 is made of domestic stainless steel plate, so the 304 price is naturally higher.

3.304 the toughness of stainless steel is better: 201 stainless steel is hard, with steel and easy to crack. The 304 stainless steel thermos cup contains no nickel, so it does not rust. Moreover, the 304 stainless steel is more resilient and the fatigue resistance is much better than that of 201.

4.201 stainless steel is easy to rust: 201 stainless steel contains high manganese content, the surface is bright with dark bright, high manganese content is easy to rust. The 304 stainless steel thermos cup contains more chromium, and the surface is matte and does not rust. When choosing stainless steel thermos cups, the difference between the two cups is obvious. (use of the water to do the experiment).

5.304 stainless steel insulation cup is not easy to rust because it forms chromium rich oxide on the surface of the steel to protect the steel body, so as to achieve the effect of healthy drinking water. The 201 stainless steel belongs to high manganese stainless steel, which is larger than 304 hardness, high carbon and low nickel.

In addition, in judging the stainless steel insulation cup material at the same time to get out of a misunderstanding, that is, stainless steel insulation Cup "rust", is not absolutely not rusty, but relatively under certain conditions, not rusty. If consumers use improper use (such as acidic substances such as tea, coffee, milk, etc.), they will naturally rust under the conditions or conditions that exceed their corrosion resistance.

If there are rusty conditions in the thermos cup, there are mainly the following possibilities:

1, the stainless steel materials used for corrosion rust, may be because the manufacturer is not reasonable, that is, the thermal insulation cup manufacturers for their product uses and selected unsuitable stainless steel grades as raw materials.

2, it may also be the manufacturer's production and processing technology.

3, or because the insulation cup manufacturers do choose the market does not comply with the relevant state or industry authority standards of fake stainless steel raw materials.

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