Ikhabhoni (C): Okuqukethwe kwekhabhoni ensimbi kuyanda, iphuzu lesivuno, amandla aqinile nobulukhuni kuyakhula, kodwa izakhiwo zepulasitiki nomthelela ziyehla.Lapho okuqukethwe kwekhabhoni kudlula u-0.23%, ukusebenza kokushisela kwensimbi kuyawohloka, ngakho-ke uma isetshenziselwa ukushisela Okuqukethwe kwekhabhoni yensimbi yesakhiwo esine-alloy ephansi ngokuvamile akudluli ku-0.20%.Okuqukethwe kwekhabhoni ephezulu kuzophinde kunciphise ukumelana nokugqwala komkhathi kwensimbi, futhi insimbi enekhabhoni ephezulu egcekeni lesitoko esivulekile kulula ukugqwala;ngaphezu kwalokho, ikhabhoni ingandisa ukuqina okubandayo nokuzwela ukuguga kwensimbi.
I-silicon (Si): I-Silicon yengezwa njenge-ejenti yokunciphisa kanye ne-deoxidizer kunqubo yokwenza insimbi, ngakho insimbi ebulewe iqukethe i-silicon engu-0.15-0.30%.I-silicon ingathuthukisa kakhulu umkhawulo wokunwebeka, iphuzu lokukhiqiza namandla ensimbi eqinile, ngakho-ke isetshenziswa kabanzi njengensimbi enwebekayo.Ukwenyuka kwenani le-silicon kuzonciphisa ukusebenza kwe-welding yensimbi.
I-Manganese (Mn).Enqubweni yokwenza insimbi, i-manganese iyi-deoxidizer enhle ne-desulfurizer.Ngokuvamile, insimbi iqukethe 0.30-0.50% manganese.I-Manganese ingakhuphula amandla nobulukhuni bensimbi, ikhulise ukuqina kwensimbi, ithuthukise ukusebenza okushisayo kwensimbi, futhi inciphise ukusebenza kokushisela kwensimbi.
I-Phosphorus (P): Ngokuvamile, i-phosphorus iyinto eyingozi ensimbi, ekhuphula ukubola okubandayo kwensimbi, yonakalise ukusebenza kokushisela, inciphise ubupulasitiki, futhi yonakalise ukusebenza kokugoba okubandayo.Ngakho-ke, okuqukethwe kwe-phosphorus ensimbi ngokuvamile kuyadingeka ukuba kube ngaphansi kuka-0.045%, futhi imfuneko yensimbi yekhwalithi ephezulu iphansi.
Isibabule (S): Isibabule futhi siyisici esiyingozi ngaphansi kwezimo ezijwayelekile.Yenza insimbi ishise ibe brittle, yehlise ukuduka kwensimbi nokuqina, futhi ubangele imifantu ngesikhathi sokubumba nokugingqika.Isibabule siphinde sibe yingozi ekusebenzeni kokushisela, sinciphisa ukumelana nokugqwala.Ngakho-ke, okuqukethwe kwesibabule ngokuvamile kuyadingeka ukuba kube ngaphansi kuka-0.045%, futhi imfuneko yensimbi yekhwalithi ephezulu iphansi.Ukwengeza i-0.08-0.20% sulphur ensimbi kungathuthukisa ukusebenza kahle, futhi ngokuvamile kubizwa ngokuthi insimbi yokusika mahhala.
I-Vanadium (V): Ukwengeza i-vanadium ensimbi kungacwenga izinhlamvu zesakhiwo futhi kuthuthukise amandla nokuqina.
I-Niobium (Nb): I-Niobium ingacwenga okusanhlamvu futhi ithuthukise ukusebenza kwe-welding.
Ithusi (Cu): Ithusi lingathuthukisa amandla nokuqina.Okubi ukuthi kujwayele ukuba nokushisa okushisa ngesikhathi sokusebenza okushisayo, futhi okuqukethwe kwethusi kunsimbi ye-scrap kuvame ukuba phezulu.
I-Aluminium (Al): I-Aluminium iyi-deoxidizer evame ukusetshenziswa ensimbi.Inani elincane le-aluminium lifakwa ensimbi ukuze kucwengwe okusanhlamvu futhi kuthuthukiswe ukuqina komthelela.