Stainless hlau kav yog kim. Cov kav hlau tsis muaj steel yog kim dua li cov kav dej aluminium alloy vim lawv cov nqi siab dua thiab cov khoom tshwj xeeb. Stainless hlau kav yog tsim los ntawm hlau, chromium, npib tsib xee thiab lwm yam khoom, thiab muaj corrosion kuj zoo, kub tsis kam thiab txhua yam khoom. Nws yog dav siv nyob rau hauv ntau yam teb, nrog rau cov khoom siv hauv chav ua noj, cov khoom siv hauv tsev, thiab cov khoom siv tshuaj. Cov txheej txheem ntau lawm ntawm cov kav hlau stainless yog qhov nyuaj, xav tau ntau yam txheej txheem xws li refining, smelting, thiab dov, yog li tus nqi siab. Stainless hlau kav dej txaus siab rau kev lag luam siab vim lawv cov khoom zoo thiab ntau yam kev siv, uas kuj yog ib qho ntawm cov laj thawj rau tus nqi siab dua. Nyob rau hauv sib piv, aluminium alloy tubes tsis tshua muaj nqi, tab sis lawv kuj muaj qee qhov zoo, xws li qhov hnyav dua, zoo thermal conductivity, thiab plasticity.