Description

5Pcs Strong Round Ferrite Disc Dia 20mm x 3mm MagnetsDescription:Ferrite MagnetFerrite magnets are BaFe12O19 and SrFe12O19 as raw materials.Ferrite (ferrites) is a non-metallic magnetic materials. It is composed of iron oxide and one or more other metal oxides (such as : nickel oxide, zinc oxide, manganese oxide, magnesium oxide, barium oxide, strontium oxide and  etc.) preparation sinteredFerrite have hard magnetic, soft magnet ,  rectangular magnetic, spin magnetic and piezomagnetic five. Formerly known as ferrite or ferrite magnetic material, its production process and looks like ceramic, which is also known as magnetic porcelain.Ferrite is a composite oxide of iron and other one or more metal elements. It nature is a semiconductor, , usually as a magnetic media to use, the most important distinction between the ferrite magnetic material and a metal or alloy magnetic is  conductivity.Characteristics: Having high magnetic properties,  good time stability and lower temperature coefficient.Applications: Widely used in the meter, motor, automatic control, microwave devices, radar and medical equipment.Magnetization direction:  axial, radial, or as required magnetizingSpecification:Style: RoundDiameter: 20mmthickness: 3mm(+/-0.2mm manufacturers tolerance)Color: BlackQuantity: 5 PcsWARNING: We would not recommend this magnet be used by children under 5 without supervision!Package Included:5 x Ferrite Magnet