Mafi girman nauyin ƙarfe na tushen ƙarfe na ƙarfe, mafi kyawun ƙarfin, amma ba duk samfuran sun dace da babban yawa ba.Girman ƙarfe na tushen ƙarfe na ƙarfe shine gabaɗaya 5.8g/cm³-7.4g/cm³, ya danganta da amfani da tsarin samfurin.

Tushen foda na ƙarfe na ƙarfe-ƙarfe-ƙarfe-ƙulle-ƙulle masu ciki gabaɗaya suna da buƙatun abun cikin mai, yawanci yawan adadin zai zama kusan 6.2g/cm³.Don manyan abubuwan buƙatun mai, kamar abun ciki na mai 20%, ana buƙatar rage yawan adadin a wannan lokacin don samun isassun pores.Tabbatar da abun cikin mai.

Bugu da ƙari, an ƙara yawan ƙarfe na ƙarfe na foda na ƙarfe, kuma wasu sassa sun gane maye gurbin kewayon ƙirƙira na gargajiya.Ana iya ƙara kayan aikin ƙarfe da yawa tare da ƙarancin foda na ƙarfe don cimma 7.2-7.4 g/cm³ bisa ga buƙatun amfani.A wannan yawan, sassan ƙarfe na ƙarfe na tushen foda sun maye gurbin yawancin sassan haɗin gwiwa da wasu sassa masu aiki kamar motoci da injuna.

A daya hannun kuma, foda karfe kuma an himmatu ga alloying.A cikin foda na ƙarfe, ana iya haɗa foda irin su aluminum, magnesium da abubuwan da ba kasafai suke yin ƙasa ba don cimma nauyinsa mara nauyi, nauyi da sauran kaddarorinsa.Ana iya amfani da shi sosai a cikin kayan lantarki da na'urori masu sawa da sauran fannonin da ke da alaƙa da rayuwa.

Yanzu da ƙarfe na tushen foda sassa da na'urorin haɗi da aka ƙara da daban-daban gami, da yawa kewayon foda karafa ya kuma fadada, wanda ƙwarai widens da ci gaban shugabanci na foda metallurgy.

A yawa na tushen ƙarfe foda metallurgy