Cov tub ntxhais sib txawv ntawm 304 thiab 316 stainless hlau pob li qub ntawm lawv cov khoom muaj pes tsawg leeg thiab kev ua tau zoo. Cov kev sib txawv tshwj xeeb yog raws li hauv qab no:
1. Cov khoom siv muaj pes tsawg leeg thiab corrosion tsis kam
Cov Ntsiab Lus Sib Txawv
304 Stainless hlau: Muaj 18% chromium, 8% npib tsib xee, thiab tsis muaj Molybdenum, uas ua rau tus nqi qis.
316 Stainless Hlau: Muaj 16-18% chromium, 10-14% npib tsib-ees, thiab muaj 2-3% molybdenum, hloov kho kom tsis kam mus rau chloride ion corrosion.
Corrosion Kuj tshwm sim
304 yog tsim nyog rau cov qauv dej thiab qaug zog acidic thiab alkaline media (xws li cov kav dej hauv nroog thiab HVAC kav).
316 Muaj lub neej pabcuam ntau tshaj 50% ntev dua hauv cov kab hauv chlorine-}}}}, dej hiav txwv) lossis tshuaj lom neeg.
2. Kub thiab Cov Neeg Kho Tshuab
Cov Kub Kub Kuj
304 muaj kev ua haujlwm ua haujlwm tsis tu ncua ntawm tsawg dua lossis sib npaug nrog 400 degree, thaum lub 3125 tiv thaiv kom sov txog li 925℃(nyiam rau boilers / chav xa xov).
Lub zog thiab kev siv tau
316 has a slightly higher tensile strength (approximately 520 MPa vs. 505 MPa), making it more suitable for high-pressure pipelines (>10 MPA).
304 muaj qhov hnyav dua, txuag 20-30% hauv kev siv cov nqi.
