Carbon (C): Yawan sinadarin carbon a cikin ƙarfe yana ƙaruwa, yawan amfani da shi, ƙarfin tauri da tauri yana ƙaruwa, amma ƙarfin da ƙarfin tasirinsa yana raguwa. Lokacin da sinadarin carbon ya wuce 0.23%, aikin walda na ƙarfe yana raguwa, don haka idan ana amfani da shi don walda. Yawan sinadarin carbon a cikin ƙarfe mai ƙarancin ƙarfe gabaɗaya baya wuce 0.20%. Yawan sinadarin carbon a cikin ƙarfe zai rage juriyar tsatsa a yanayi, kuma ƙarfe mai yawan carbon a cikin fili mai buɗewa yana da sauƙin tsatsa; Bugu da ƙari, carbon na iya ƙara ƙarfin sanyi da tsufa na ƙarfe.
Silikon (Si): Ana ƙara silicon a matsayin wakili mai ragewa da kuma deoxidizer a cikin aikin yin ƙarfe, don haka ƙarfen da aka kashe yana ɗauke da silicon 0.15-0.30%. Silicon na iya inganta iyakar roba, wurin samarwa da ƙarfin tururi na ƙarfe sosai, don haka ana amfani da shi sosai a matsayin ƙarfe mai roba. Ƙara yawan silicon zai rage aikin walda na ƙarfe.
Manganese (Mn)A tsarin yin ƙarfe, manganese kyakkyawan maganin deoxidizer ne da kuma maganin desulfurizer. Gabaɗaya, ƙarfe yana ɗauke da kashi 0.30-0.50% na manganese. Manganese na iya ƙara ƙarfi da tauri na ƙarfe, ƙara tauri na ƙarfe, inganta ƙarfin aiki mai zafi na ƙarfe, da kuma rage aikin walda na ƙarfe.
Phosphorus (P): Gabaɗaya, phosphorus sinadari ne mai cutarwa a cikin ƙarfe, wanda ke ƙara karyewar ƙarfe cikin sanyi, yana lalata aikin walda, yana rage ƙarfin lantarki, kuma yana lalata aikin lanƙwasa sanyi. Saboda haka, ana buƙatar yawan sinadarin phosphorus a cikin ƙarfe ya zama ƙasa da 0.045%, kuma buƙatar ƙarfe mai inganci ya yi ƙasa.
Sulfur (S): Sulfur kuma abu ne mai cutarwa a yanayi na yau da kullun. Sanya ƙarfe ya yi zafi, rage ƙarfin aiki da tauri na ƙarfe, kuma yana haifar da tsagewa yayin ƙirƙira da birgima. Sulfur kuma yana da illa ga aikin walda, yana rage juriya ga tsatsa. Saboda haka, ana buƙatar yawan sinadarin sulfur ya zama ƙasa da 0.045%, kuma buƙatar ƙarfe mai inganci ya yi ƙasa. Ƙara 0.08-0.20% sulfur ga ƙarfe na iya inganta injin, kuma galibi ana kiransa ƙarfe mai yankewa kyauta.
Vanadium (V): Ƙara vanadium a cikin ƙarfe na iya inganta tsarin hatsi da kuma inganta ƙarfi da tauri.
Niobium (Nb): Niobium na iya tace hatsi da inganta aikin walda.
Tagulla (Cu): Tagulla na iya inganta ƙarfi da tauri. Rashin kyawunsa shine yana da saurin karyewa da zafi yayin aiki mai zafi, kuma yawan jan ƙarfe a cikin tarkacen ƙarfe galibi yana da yawa.
Aluminum (Al): Aluminum wani abu ne da ake amfani da shi wajen cire sinadarin oxidizing a cikin ƙarfe. Ana ƙara ƙaramin adadin aluminum a cikin ƙarfen don tausasa hatsin da kuma inganta ƙarfin tasirin.