Alloy steel yog ib pawg ntawm cov hlau alloy uas feem ntau muaj hlau, carbon thiab lwm yam alloyed ntsiab xws li Si, Mg, Cr, Mo, Ni, Mn, Cu thiab lwm yam. Cast alloy steel yuav muab faib ua cam khwb cia hlau tsis tshua muaj hlau (tag nrho cov ntsiab lus alloy. tsawg dua los yog sib npaug li 5%), cam khwb cia hlau hlau (tag nrho cov ntsiab lus alloy yog 5% mus rau 10%) thiab cam khwb cia siab alloy steel (tag nrho cov ntsiab lus alloy ntau dua lossis sib npaug 10%). Raws li cov kev siv sib txawv thiab cov qauv, cov hlau alloy tuaj yeem raug cam los ntawm ntau yam txheej txheem casting xws li peev casting, xuab zeb casting, plhaub casting, poob ua npuas ncauj casting thiab nqus casting. Covalloy hlau castingsfeem ntau muaj qee yam khoom siv tshwj xeeb xws li kub tsis kam, hnav tsis kam, stainless thiab corrosion kuj.