Why does stainless steel carry magnetism?
Often use magnets to determine whether stainless steel magnet attracts people, that is the stainless steel, the stainless steel is impossible. It seems that the people of stainless steel as well as understanding the misunderstanding. In fact this is just the difference between austenitic stainless steel and other stainless steel has no magnetism.In general, austenitic stainless steel and austenitic stainless steel (non-magnetic magnet can not suck), there are other ferrite stainless steel, with the ferromagnetic (magnets attract). But they can not just use a stainless steel magnetic discrimination. For the stainless steel tube, no magnet up or not, as long as the quality standards are stainless steel.
If you go to the molten steel and high chromium nickel austenitic steel, tempered magnet is not stainless steel. If the molten steel in the main alloy elements is chromium, iron and carbon and a small amount of nickel (or without nickel), tempered steel is a magnet on the stainless steel, also called ferritic stainless steel martensitic stainless steel or austenitic stainless steel. In addition to the magnet is not on, ferrite, martensite stainless steel are magnetic. The nickel element in the reserves in the world is very few, the price is more expensive, therefore, high nickel content in stainless steel on the market price is higher, and the magnet suction is not at present because of austenitic stainless steel for stainless steel in the proportion is still great, so that people have a misconception of all stainless steel are non-magnetic.
In fact, there is also a stainless steel magnet can not afford, that is, high manganese or nitrogen and low nickel or nickel free stainless steel, chromium, manganese austenitic stainless steel, so it can not be based on whether or not to determine whether the magnetic stainless steel
