Cov yam ntxwv ntawm cov yeeb nkab steel hlau
Cov hlau tsis muaj hlau yog cov khoom siv sib xyaw ua ke siab; stainless hlau
Cov hlau hlau yog lub npe siv, suav nrog 12% lossis ntau dua chromium (chromium) thiab 50% ntau dua hlau (hlau). Cov raj hlau tsis huv niaj hnub tuaj yeem muaj lwm cov ntsiab lus, xws li npib tsib xee, niobium, molybdenum, titanium thiab lwm yam. Npib tsib xee, molybdenum, niobium, thiab chromium txhim kho corrosion kuj ntawm stainless hlau. Qhov no yog cov hlau nrog tsawg kawg 12% chromium, uas ua rau nws tiv taus xeb ntxiv, lossis qis dua li lwm hom hlau. Cov chromium hauv cov hlau sib xyaw nrog cov pa oxygen hauv cov cua kom tsim cov txheej txheej chromium nyias, hu ua zaj duab xis passivation
Kev sib tw ntawm kev txiav cov yeeb nkab steel hlau
Thaum ua haujlwm txias, tag nrho cov hlau tawv. Cov raj hlau tsis muaj zog muaj zog. Thaum cov yeeb nkab tsis xeb lossis cov nplaim ntawm cov yeeb nkab tsis xeb tiv tauj cov yeeb nkab tsis xeb hlau, nws yuav tawv thiab dhau los ua nyuaj dua. Txuas ntxiv txiav nrog tib lub siab thiab nrawm. Cov ntsiab lus ntawm chromium thiab npib tsib xee ua rau nws nyuaj rau txiav lossis teeb ntau dua li cov pa roj carbon zoo tib yam. Cov austenitic stainless hlau yeeb nkab tawv nrawm, tab sis qhov txias txias ua haujlwm ntawm 400 series tsuas yog me ntsis siab dua li cov pa roj carbon zoo tib yam.