Can a magnet attract stainless steel?

Iron and steel are distinguished by their carbon content. Iron-carbon alloys with a carbon content of less than 2% are steel, and those with a carbon content of more than 2% are called iron. Steel is widely used because of its toughness, elasticity and rigidity. Everything that comes into contact with in life is steel, but people call it differently. For stainless steel, no matter whether the magnet can attract it or not, as long as it meets the quality standards, it is stainless steel. Therefore, from a metallurgical point of view, there is no such thing as stainless steel. The main element of stainless steel corrosion resistance is chromium. Steel with a chromium content of more than 10.5% will not rust. The alloying elements added during smelting are different, and there is a difference between the magnets that can attract and those that cannot. Stainless steel is generally divided according to the structure, which can be divided into several categories such as austenite, ferrite, and martensite. If different proportions of chromium and nickel are added to molten steel, the resulting austenitic steel is stainless steel that cannot be attracted by magnets; if chromium and a small amount of nickel (or no nickel) are added to molten steel, the resulting steel is Ferritic stainless steel that magnets can attract; the main alloying elements of martensitic stainless steel are chromium, iron and carbon. There are more than 100 kinds of stainless steel due to different alloy content. All but austenitic stainless steels are magnetic. Nickel has very little reserves in the world and is relatively expensive. Therefore, stainless steel with high nickel content is also more expensive in the market, and the magnet is not attracted to it. In fact, there is also a stainless steel magnet that cannot be attracted. That is stainless steel with high manganese content and little nickel or nickel-free. The market price of this stainless steel is much lower than that of stainless steel with high nickel content. Some dealers just use people's misunderstanding that 'good stainless steel magnets can't be attracted' to deceive consumers, and the price is as expensive as high nickel-containing stainless steel. There are more than 100 kinds of stainless steel, with different characteristics and functions. Austenitic stainless steel has low thermal conductivity, and the thermal conductivity of ferrite is nearly half higher than that of austenitic stainless steel. Shaanxi Kaidi's externally attached liquid level gauge probes (sensors) are fixed in two ways: adhesive and magnetic. Before installation, please confirm the material used in the storage tank to use the appropriate fixing method.

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