Muaj ntau cov kev qhia tshwj xeeb ntawm cov khoom siv tsis xeb hlau, ntawm cov 18/8 txhais tau tias cov khoom sib xyaw cov khoom siv ntawm cov hlau tsis huv no muaj 18% chromium thiab 8% npib tsib xee. Cov khoom siv uas ua tau raws li cov qauv no yog cov khoom lag luam ntsuab uas ua tau raws li lub teb chaws cov zaub mov-qib tus qauv, thiab cov khoom lag luam yog xeb-pov thawj thiab corrosion-resistant. Cov xim ntawm cov khob zoo tib yam stainless hlau khob txhav thiab tsaus. Yog tias nws tsau rau hauv 1% ntsev dej rau 24 teev, nws yuav ua rau xeb. Qee lub ntsiab muaj nyob hauv nws dhau tus qauv, uas ncaj qha cuam tshuam rau kev noj qab haus huv ntawm tib neeg lub cev.
