Hlau (Fe) yog ib qho yooj yim hlau ntsiab ntawm stainless hlau.
Chromium (Cr) yog lub ntsiab ferrite tsim. Kev sib xyaw ntawm chromium thiab oxygen tuaj yeem tsim cov yeeb yaj kiab tsis zoo ntawm Cr2O3, uas yog ib qho ntawm cov ntsiab lus tseem ceeb tswj los ntawm stainless hlau. Qhov nce ntawm cov ntsiab lus chromium tuaj yeem txhim kho kev kho lub peev xwm ntawm passive zaj duab xis ntawm hlau. Feem ntau, chromium hauv stainless hlau Cov ntsiab lus yuav tsum siab tshaj 0.12.
Nickel (Ni) yog lub ntsiab austenite tsim cov ntsiab lus, uas tuaj yeem ua rau qeeb ntawm corrosion phenomenon ntawm hlau thiab kev loj hlob ntawm nplej ntawm cua sov.
Molybdenum (Mo) yog cov khoom tsim carbide. Cov carbides tsim muaj qhov ruaj khov heev, uas tuaj yeem tiv thaiv kev loj hlob ntawm austenite thaum lub sij hawm cua sov thiab txo qhov kub siab ntawm cov hlau. Tsis tas li ntawd, molybdenum tuaj yeem ua rau cov yeeb yaj kiab passivation ntau ntom thiab ruaj khov. , yog li txhim kho Cl-corrosion ntawm stainless hlau.
Niobium thiab titanium (Nb, Ti) yog cov muaj zog carbide tsim cov ntsiab lus, uas tuaj yeem txhim kho lub peev xwm ntawm intergranular corrosion ntawm hlau. Txawm li cas los xij, titanium carbide muaj qhov cuam tshuam tsis zoo rau qhov zoo ntawm cov hlau tsis zoo, yog li kev ua haujlwm ntawm cov hlau tsis muaj hlau nrog cov kev xav tau siab dua yog feem ntau txhim kho los ntawm kev ntxiv niobium.
Manganese (Mn) txhim kho hardenability ntawm hlau thiab txhim kho cov kub ua hauj lwm ntawm hlau. Cov hlau uas muaj cov ntsiab lus manganese ntawm 0.11-0.14 muaj abrasiveness siab thiab tuaj yeem siv rau cov pob zeb hauv ob sab phlu, thiab lwm yam. siab dua manganese yuav txo tau lub peev xwm tsis yooj yim corroded.
