Popularize knowledge of stainless steel, 201, 304, 316 and other grades of stainless steel, just shows the rust resistance of stainless steel, frankly speaking, the high grade is not easy to rust, and there is no poison!

All stainless steel matrix is iron, in order to make iron does not rust, invented in the iron to add manganese, nickel, chromium, etc., can make metal products produce rust resistance, according to the different ratios of manganese, nickel, chromium, the formation of different grades of stainless steel (201, 304, 314, 316...) The nickel, chromium and other precious metals with high stainless steel are more expensive, so the stainless steel with high labels is also more expensive. So we should know the reason why the price of stainless steel thermos cup is high and low!

Say again the problem of toxicity is not toxic, most of them say that the metal container with 201 stainless steel is toxic, because the manganese content in the ratio of 201 stainless steel metal is higher than that of other labels, and the manganese metal will be harmful to the body in a large number of people (this large number, to what extent, we ask Baidu). So the manganese in 201 stainless steel, will the metal container used to hold water precipitate and dissolve into water in daily life? The answer is no. Only when the temperature is above 1800 degrees, the metal can dissolve and precipitate. Manganese metal can strengthen the hardness of iron, so the vast majority of metal products contain manganese, including 304, 314... The stainless steel. And why do all stainless steel products "experts" recommend not to install alkaline, acidic liquids? Because acidic and alkaline liquids corrode metals. So, you just use the stainless steel products for water, are safe, you have money to buy a high label, no money to buy a low label does not matter, as long as it does not rust, you can rest assured.