Ho na le likete tsa li-iel tsa allow steel tsa allow le li-steel le tse mashome a tšeletseng a litlhaloso tse sebelisoang lefatšeng ka bophara. Tlhahiso ea li-account tsa alloy Steel bakeng sa ka 10% ea tlhahiso ea tšepe. Ke lintho tsa bohlokoa tsa lebello tse sebelisoang haholo kahong ea naha ea moruo le ts'ireletso ea naha.
Ho tloha ka 1970, nts'etsopele ea alloyli-steel tse matla tse phahamengLefatšeng ka bophara ho se ke ka kena mehleng e ncha. Ho ipapisitsoe le Theknoloji e laoloang le minilinglory ea metallirgy, mahlaseli a sejoale-joale a nang le matla a mangata a nang le matla a mangata, a bolokiloeng hantle, mohopolo o ngotsoeng ka letsoho.
Ka bo-1980, nts'etsopele ea mefuta e fapaneng e kenyelletsang libaka tsa liindasteri le karolo ea lisebelisoa tse khethehileng tse fihletsoeng tlhōrōng ea sebopeho sa lik'hemik'hale, sebopeho se setle se totobatsa ka lekhetlo la pele. E boetse e bontša hore lipatlisiso tsa mantlha tsa tšepe tse tlase li fetohile tsebong ebile e sentsoe. Mohopolo o mocha oaMoqapi oa alloy.