Stainless hlau, raws li tau hais tseg hauv GB / T 20878-2007, yog cov hlau tsis muaj steel hlau thiab corrosion kuj, nrog cov ntsiab lus chromium tsawg kawg yog 10.5 feem pua thiab cov ntsiab lus carbon feem ntau ntawm 1.2 feem pua. Stainless hlau yog lub ntsiab lus ntawm stainless thiab acid resistant steel. Cov hlau uas tiv taus tsis muaj zog corrosive media xws li huab cua, chav dej thiab dej los yog muaj cov khoom tsis zoo yog hu ua stainless hlau; Cov hlau uas tiv taus tshuaj corrosion nruab nrab (acid, alkali, ntsev thiab lwm yam tshuaj etching) yog hu ua acid resistant steel.
Vim qhov sib txawv ntawm cov tshuaj muaj pes tsawg leeg, lawv cov corrosion kuj sib txawv. Ordinary stainless hlau feem ntau tsis resistant rau tshuaj nruab nrab corrosion, thaum acid resistant steel feem ntau stainless. Lub sij hawm "stainless steel" tsis tsuas yog hais txog ib hom stainless hlau, tab sis kuj hais txog ntau tshaj 100 hom kev lag luam stainless hlau. Txhua hom stainless hlau tsim muaj kev ua tau zoo hauv nws daim ntawv thov tshwj xeeb. Tus yuam sij rau kev vam meej yog kom nkag siab lub hom phiaj ua ntej, thiab tom qab ntawd txiav txim siab qhov tseeb ntawm qib steel. Feem ntau tsuas yog rau hom hlau uas muaj feem xyuam rau daim ntawv thov kev tsim kho vaj tsev. Lawv tag nrho muaj 17 ~ 22 feem pua chromium, thiab cov qib hlau zoo dua kuj muaj cov npib tsib xee. Qhov sib ntxiv ntawm molybdenum tuaj yeem txhim kho qhov kev txhim kho atmospheric corrosion, tshwj xeeb tshaj yog cov corrosion kuj rau cov huab cua uas muaj chloride.
Feem ntau hais lus, lub hardness ntawm stainless hlau yog siab dua li ntawm aluminium alloy, thiab tus nqi ntawm stainless hlau yog siab dua li ntawm aluminium alloy.
