Correct understanding of the magnetism of stainless steel, out of the cognitive misunderstanding
2024-10-26 16:17:44
Today, a customer asked us whether the stainless steel you sell is magnetic? Zyta says it’s not really up to me. The customer also said that the stainless steel on the market does not have magnetic, magnetic are fake! Here Zyta asked us to produce an article on stainless steel magnetism. Now HUA STEEL will take you to learn the magnetic cold knowledge of stainless steel. People test the advantages and disadvantages of stainless steel and authenticity, the common way is to absorb stainless steel with magnets. No adsorption is no magnetic, considered to be high-quality stainless steel, genuine; Adsorption magnetic, it is considered to be counterfeit, fake. This is an extremely one-sided, impractical wrong identification method, the main reason is that for a long time austenitic stainless steel in all kinds of stainless steel accounted for a large proportion, so that people have produced all stainless steel has no magnetic false concept. Indeed, for some stainless steel is magnetic, and its magnetism is mainly determined by the stainless steel alloy composition, crystal structure and cold working process. There are many kinds of stainless steel, usually divided into austenitic stainless steel, martensitic stainless steel, ferritic stainless steel, austenitic ferritic duplex stainless steel and precipitation hardening stainless steel according to the matrix structure.
Our most common is the 200 series, 300 series and 400 series of stainless steel. 200 series and 300 series stainless steel are composed of austenitic stainless steel crystal structure, can also be called chromium-nickel-manganese stainless steel (Cr-Mn-Ni series) and chromium-nickel stainless steel (Cr-Ni series) according to alloy composition. The chromium (Cr) content of 300 series stainless steel is 18%, and the nickel (Ni) content is 8%, so it is also called 188 type austenitic stainless steel. 400 series stainless steel is mainly composed of ferrite and martensite crystal structure, can also be called chromium stainless steel according to alloy composition. So which stainless steel will be magnetic? In the alloy composition, the presence of chromium (Cr) this component will cause stainless steel to have a magnetic crystal structure. Another component, nickel (Ni), inhibits the production of this magnetism. The main alloy components of austenitic stainless steel are chromium and nickel, which are non-magnetic or weakly magnetic. The main alloy component of austenitic ferrite duplex stainless steel is chromium, there is no nickel component, and its crystal structure is similar to carbon steel, which makes it easy to be magnetized.
Anyway, for the stainless steel material information ,talk with our company, She is professional and can talk with you for lots of information for stainless steel sheets, coils,pipes.