SmCo magnet, one of the two types of rare earth magnet, ... permanent magnet made of an alloy of samarium and cobalt. SmCo magnet, one of the two types of rare earth magnet ... made of an alloy of samarium and cobalt.Available Property: SmCo XG18, XG20, XG22, XG24 ,Sm2Co17 XGS24M, XGS24H, XGS26M, XGS26, XGS26H ...