SmCo is also named with SoCo magnetic steel, SmCo permanent magnet, SoCo permanent magnetic iron and rare-earth cobalt permanent magnet. It's a kind of material made from raw earth metal samarium and cobalt and produced by after a serial of process burdening,melting,milling,pressing and sintering .

It’s also a high performance, low temperature coefficient permanent magnet with its high working temperature—350 degree centigrade. When working above 180 degree centigrade, its maximum energy product BH and steady temperature are superior than NdFeB magnetic materials.

It needn’t to be coated because it is difficult to be eroded and oxidized. SoCo magnet is widely used in space probe,national defense and military ,microwave appliance,communication,medical equipments,motors, instruments, various magnetism spreading devices,sensor,magnetic processor,magnetic lifter and so on.