What's the difference between a stainless steel cup and a nonmagnetic one?
In the Cr content in steel is more than 12.5%, has the high resistance outside medium (acid, alkali and salt) corrosion of steel called stainless steel. According to the organization of internal steel, stainless steel can be divided into Martensitic, Ferritic, Austenitic, ferritic - Austenitic precipitation hardening stainless steel. According to the provisions of the national standard GB3280 - 92, a total of 55 austenitic stainless steel. The provisions in our daily life we contact more (called nickel stainless) and martensite stainless steel (called stainless iron, but not scientific, misleading, should be avoided) two categories. Austria typical type stainless steel grades for 0Cr18Ni9, namely "304" and 1Cr18Ni9Ti. martensitic stainless steel cutlery is our manufacturing stainless steel grades, including 2Cr13, 3Cr13, 6Cr13, 7Cr17 and so on. Because of the difference of these two kinds of stainless steel components, the metal microstructure The fabric is not the same. Austenitic stainless steel due to chromium and nickel in high added in steel (CR at about 18%, more than 4% in Ni), steel internal organization presents an organization called austenite state, this organization is not magnetic, can not be attracted by the magnet used as decorative materials., such as stainless steel, towel racks, utensils, stoves and other production cutlery of stainless steel to the martensitic stainless steel cutlery. Because has the function of shear items, must have the sharpness, want to have the sharpness must have a certain hardness. This kind of stainless steel by heat treatment must make its internal organization increase the hardness change. To be knife cut. But this kind of stainless steel consists of martensite, a magnetic material, which can be attracted by a magnet. So we cannot simply use whether to show that the magnetic stainless steel.
It's just health care. That is to say, there is a magnet is called "magnetic water", "no magnet" is ordinary water, as for the final analysis whether there is no health care, there is no authoritative argument.
Non-magnetic stainless steel, that is, austenitic stainless steel, 200 series and 300 series are non-magnetic, and magnetic stainless steel belongs to martensitic steel, the 400 line is also called stainless steel, iron belongs to this kind. With magnetic stainless steel, magnetic permeability is strong, suitable for electromagnetic ovenTheoretically speakingNon-magnetic stainless steel pots do no harm to your bodyThere are many aluminum kettles. They contain other metals. There are many aluminum kettles that do harm to the body, not experts
