(1) Mixed alloy (eutectic sib tov), thaum cov kua alloy yog solidified, cov alloys tsim los ntawm cov khoom ntawm cov alloy crystallized cais, xws li solder, bismuth-cadmium alloy, thiab lwm yam.;
(2) Cov khoom sib tov sib xyaw, uas tsim cov kev daws teeb meem thaum cov kua alloys yog solidified, xws li kub thiab nyiaj alloys;
(3) Intermetallic compound alloys, alloys uas txhua qhov sib xyaw ua ke nrog ib leeg, xws li tooj dag (β-brass, γ-brass thiab ε-brass) muaj li ntawm tooj liab thiab zinc.
Ntau yam khoom ntawm alloys zoo dua cov hlau ntshiab, yog li alloys feem ntau yog siv rau hauv cov ntaub ntawv thov (saib ferroalloys, stainless hlau).