I-Ferro Tungsten ilungiswe kwi-wolframite ngokunciphisa i-carbon kwisithando sombane. Isetyenziswa ikakhulu njenge-alloying element additive for tungsten equlethe intsimbi yealloy (efana nentsimbi enesantya esiphezulu). Kukho iintlobo ezintathu ze-ferrotungsten eziveliswe e-China, kuquka i-w701, i-W702 kunye ne-w65, enomxholo we-tungsten malunga ne-65 ~ 70%. Ngenxa yenqanaba eliphezulu lokunyibilika, alikwazi ukugeleza ngaphandle kolwelo, ngoko kuveliswa ngendlela ye-caking okanye i-iron extraction method.