Stainless hlau yog ib qho alloy ntawm cov hlau uas tiv taus xeb. Nws muaj tsawg kawg yog 11% chromium thiab tej zaum yuav muaj cov ntsiab lus xws li carbon, lwm yam tsis yog lwm yam kom tau lwm yam uas xav tau. Stainless hlau qhov tsis kam rau corrosion tau los ntawm cov chromium, uas ua cov yeeb yaj kiab passive uas tuaj yeem tiv thaiv cov khoom thiab kho tus kheej nyob rau hauv lub xub ntiag ntawm oxygen.
Stainless hlau yog cov hlau alloy uas muaj tsawg kawg ntawm 10.5% chromium. Alloy cov ntsiab xws li npib tsib, molybdenum, titanium, carbon, roj carbon, thiab tooj liab tuaj yeem txhawb lub zog, thiab lwm yam khoom ntawm stainless hlau. Cov alloys sib txawv muab cov qib sib txawv ntawm cov corrosion tsis kam.