ferritic stain tsawg dua cov hlau

Ferritic stainless hlau (400 series) muaj 15% rau 30% chromium thiab muaj lub cev-tsom lub qhov cub siv lead ua qauv. Cov hom hlau no feem ntau tsis muaj npib tsib xee, thiab qee zaum kuj muaj me me ntawm Mo, Ti, Nb thiab lwm yam. Cov hom hlau no muaj cov yam ntxwv ntawm kev ua haujlwm loj hauv thermal, qhov loj me me coefficient, oxidation tsis kam zoo, thiab kev kub siab zoo ua hauj corrosion. Nws yog feem ntau siv rau kev ua kom muaj kev tiv thaiv atmospheric tsis kam. , Dej vapor, dej thiab oxidizing acid corroded qhov chaw. Tus nqi ntawm ferritic stainless hlau tsis yog tsuas yog tsawg thiab ruaj khov, tab sis kuj muaj ntau yam ntxwv thiab cov txiaj ntsig zoo. Nws tau raug pov thawj tias nyob rau hauv ntau daim ntawv thov teb qhov twg tsuas yog austenitic stainless hlau (300 series) tuaj yeem siv, ferritic stainless hlau yog qhov tsis tshua muaj cov khoom siv zoo tshaj, ferritic stainless hlau tsis muaj npib tsib xee. Cov ntsiab lus tseem ceeb yog chromium (GG gt; 10%) thiab hlau. Chromium yog qhov tshwj xeeb xeb ua rau stainless hlau, thiab nws tus nqi kuj tseem ruaj khov.