Carbon (C): Abubuwan da ke cikin carbon a cikin ƙarfe yana ƙaruwa, ƙimar yawan amfanin ƙasa, ƙarfin ƙarfi da ƙarfi yana ƙaruwa, amma filastik da kaddarorin tasiri suna raguwa. Lokacin da abun ciki na carbon ya wuce 0.23%, aikin walda na karfe ya lalace, don haka idan ana amfani da shi don walda abun ciki na carbon na ƙarancin tsarin ƙarfe gabaɗaya baya wuce 0.20%. High carbon abun ciki zai kuma rage yanayi lalata juriya na karfe, da kuma high-carbon karfe a cikin bude stock yadi yana da sauki ga tsatsa; Bugu da kari, carbon iya ƙara sanyi brittleness da tsufa ji na karfe.
Silicon (Si): Ana ƙara siliki a matsayin wakili mai ragewa da deoxidizer a cikin tsarin aikin karfe, don haka karfen da aka kashe ya ƙunshi 0.15-0.30% silicon. Silicon na iya inganta haɓakar iyakoki na roba, ƙimar yawan amfanin ƙasa da ƙarfin ƙarfi na ƙarfe, don haka ana amfani da shi sosai azaman ƙarfe na roba. Ƙara yawan adadin silicon zai rage aikin walda na karfe.
Manganese (Mn). A cikin tsarin aikin ƙarfe, manganese shine mai kyau deoxidizer da desulfurizer. Gabaɗaya, ƙarfe ya ƙunshi 0.30-0.50% manganese. Manganese na iya ƙara ƙarfi da taurin ƙarfe, haɓaka ƙarfin ƙarfe, haɓaka aikin zafi na ƙarfe, da rage aikin walda na ƙarfe.
Phosphorus (P): Gabaɗaya, phosphorus wani abu ne mai cutarwa a cikin ƙarfe, wanda ke ƙara sanyin ƙarfe, yana lalata aikin walda, yana rage filastik, kuma yana lalata aikin lankwasa sanyi. Don haka, ana buƙatar abun ciki na phosphorus a cikin ƙarfe gabaɗaya ya zama ƙasa da 0.045%, kuma buƙatun ƙarfe mai inganci yana da ƙasa.
Sulfur (S)Sulfur shima abu ne mai cutarwa a yanayin al'ada. Yi ƙarfe mai zafi mai gatsewa, rage ƙarancin ƙarfe da tauri, da haifar da fasa yayin ƙirƙira da birgima. Sulfur kuma yana da illa ga aikin walda, yana rage juriya na lalata. Sabili da haka, ana buƙatar abun ciki na sulfur gabaɗaya ya zama ƙasa da 0.045%, kuma buƙatun ƙarfe mai inganci yana da ƙasa. Ƙara 0.08-0.20% sulfur zuwa karfe zai iya inganta kayan aiki, kuma ana kiransa gabaɗaya karfen yanke kyauta.
Vanadium (V): Ƙara vanadium zuwa karfe zai iya tsaftace tsarin hatsi da inganta ƙarfi da tauri.
Niobium (Nb)Niobium na iya tace hatsi da inganta aikin walda.
Copper (Cu): Copper iya inganta ƙarfi da taurin. Rashin hasara shi ne cewa yana da sauƙi ga zafi mai zafi a lokacin aiki mai zafi, kuma abun ciki na jan karfe a cikin tsintsin karfe ya fi girma.
Aluminum (Al): Aluminum shine deoxidizer da aka saba amfani dashi a cikin karfe. Ana ƙara ƙaramin adadin aluminum zuwa karfe don tsaftace hatsi da inganta tasirin tasiri.