Akwai dubban makin ƙarfe na gami da dubunnan ƙayyadaddun bayanai da ake amfani da su a duniya.Abubuwan da aka fitar na gami da ƙarfe na lissafin kusan kashi 10% na jimlar ƙarfen da aka fitar.Yana da mahimmancin ƙarfe da aka yi amfani da shi sosai wajen gina tattalin arzikin ƙasa da gina tsaron ƙasa.
Tun 1970s, ci gaban gamikarafa masu ƙarfiduniya ta shiga sabon zamani.Dangane da fasahar mirgina mai sarrafawa da ƙananan ƙarfe na microalloying, ƙananan ƙarfe masu ƙarfi na zamani masu ƙarfi, wato ƙananan ƙarfe, sun samar da sabon ra'ayi.
A cikin 1980s, haɓaka nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan masana'antu da nau'ikan kayan aiki na musamman sun kai ga kololuwa tare da taimakon nasarorin da aka samu a cikin fasahar sarrafa ƙarfe. na karfe, rinjaye matsayi na karfe tsarin da micro-lafiya tsarin da aka haskaka a karon farko.Har ila yau, ya nuna cewa bincike na asali na ƙananan ƙarfe na ƙarfe ya zama balagagge kuma ba a taɓa ganin irinsa ba.Sabuwar ra'ayi nagami zane.