3004 aluminium alloy ndi aloyi mu banja lopangidwa ndi aluminiyamu-manganese (3000 kapena 3xxx mndandanda).
Ndizofanana ndi ma aloyi a 3003, kupatula kuwonjezera pafupifupi 1% magnesiamu.Zitha kukhala zozizira (koma osati, mosiyana ndi mitundu ina ya aluminiyamu aloyi, kutentha) kuti apange kupsya mtima ndi mphamvu zapamwamba, koma ductility yotsika.
Monga ma aloyi ena ambiri a aluminiyamu-manganese, 3004 ndi alloy-cholinga chokhazikika chokhala ndi mphamvu zolimbitsa thupi, kugwira ntchito bwino, komanso kukana dzimbiri.
Nthawi zambiri amakulungidwa ndikutulutsidwa (omwe amagwiritsidwa ntchito popanga zitini zachakumwa), koma nthawi zambiri samapangidwa.Monga aloyi wopangidwa, sichigwiritsidwa ntchito poponya.