Stainless hlau:
Nws txhais tias cov hlau alloy muaj qhov tsawg kawg yog 11.5 wt% chromium cov ntsiab lus. Hlau tsis zoo yuav tsis xeb, xeb lossis xeb ib qho yooj yim li hlau tsis zoo (nws "stains tsawg dua"), tab sis nws tsis yog stain-proof. Nws tseem hu ua corrosion resistant steel thaum alloy hom thiab qib tsis paub meej, tshwj xeeb hauv kev lag luam aviation. Muaj cov qib sib txawv thiab saum npoo kawg ntawm cov hlau stainless kom haum rau ib puag ncig uas cov khoom yuav raug rau hauv nws lub neej. Cov kev siv ntau ntawm cov hlaus tsis xeb hlau yog cutlery thiab saib lub pluaj.
Stainless hlau sib txawv los ntawm carbon hlau los ntawm tus nqi ntawm chromium tam sim no. Cov pa roj carbon steel xeb thaum tsim tawm ntawm huab cua thiab noo noo. No cov hlau oxide zaj duab xis yog ua kom nquag thiab ua kom tiav kev xeb los ntawm kev tsim cov hlau ntau oxide. Cov hlau tsis muaj hlau muaj cov roj chromium txaus kom tam sim no zaj duab xis passive ntawm chromium oxide cov ntawv uas tiv thaiv xeb ntxiv.
Cov hlau me me:
Cov pa roj carbon steel qee zaum hu ua 'steel steel' lossis 'steel carbon steel dawb'. Lub koom haum American Iron thiab Steel koom nrog txhais cov pa roj carbon steel uas tsis muaj ntau tshaj li 2% carbon thiab tsis muaj lwm yam khoom siv uas tsis paub txog. Cov pa roj carbon steel tsim ua qhov loj tshaj plaws ntawm kev tsim kho steel thiab yog siv nyob rau hauv kev siv ntau heev.
Feem ntau cov hlau ntxaij yog tawv thiab muaj zog. Lawv kuj ua kom pom fer fernetnetism (piv txwv li lawv sib nqus). Qhov no txhais tau tias lawv tau siv dav hauv kev siv lub tshuab thiab cov khoom siv hluav taws xob. Vuam carbon cov hlau nrog cov ntsiab lus carbon ntau dua 0.3% yuav tsum muaj kev ceev faj tshwj xeeb. Txawm li cas los xij, vuam carbon hlau nthuav txog cov teeb meem tsawg dua li ntawm cov hlau tsis xeb hlau. Cov tshuaj tiv thaiv corrosion ntawm carbon steels tsis zoo (piv txwv li lawv xeb) thiab yog li lawv yuav tsum tsis txhob siv qhov chaw tsis muaj qhov tshwj tsis yog qee hom kev tiv thaiv txheej txheem siv.
