904L: 904L stainless hlau yog cov hlau alloy siab austenitic stainless hlau nrog cov ntsiab lus siab ntawm nickel, chromium, thiab molybdenum. Nws feem ntau muaj li 25 feem pua nickel, 19 feem pua chromium, 4.5 feem pua molybdenum, thiab 1.5 feem pua tooj liab. Lub xub ntiag ntawm tooj liab tsub kom tsis kam mus rau acids, tshwj xeeb tshaj yog sulfuric acid.
316: 316 stainless hlau yog austenitic stainless hlau nrog qis nickel cov ntsiab lus piv rau 904L. Nws muaj kwv yees li 10-14 feem pua nickel, 16-18 feem pua chromium, thiab 2-3 feem pua molybdenum. Nws muaj qhov zoo corrosion kuj nyob rau hauv ntau qhov chaw, tshwj xeeb tshaj yog tsis kam mus rau chloride corrosion.
Stainless hlau 904L yeeb nkab Nws muaj ntau cov nickel, chromium, thiab molybdenum, uas ua rau nws tiv taus corrosion thiab yaig ntau dua li 316 stainless hlau. Feem ntau siv rau hauv cov ntawv thov uas nquag raug rau cov tshuaj hnyav thiab cov kua qaub xws li tshuaj, petrochemical, thiab cov khoom siv dej hiav txwv.
Tib lub sijhawm,316 stainless hlau yeeb nkabmuaj corrosion kuj zoo, tab sis nws tsis zoo li corrosion resistant li 904L. Nws muaj tsawg dua cov nyiaj npib tsib xee thiab molybdenum, uas ua rau nws yooj yim dua thiab pheej yig dua rau kev tsim khoom. Feem ntau siv nyob rau hauv daim ntawv thov uas yuav tsum tau zoo corrosion kuj, xws li marine thiab coastal ib puag ncig, khoom noj khoom haus thiab kev kho mob cog.
