Stainless hlau yog ib qho ntawm cov khoom siv ntau yam thiab siv dav hauv ntau qhov kev lag luam rau nws cov corrosion kuj, durability, thiab zoo nkauj tsos. Ob qib siv feem ntau yog SS 304 thiab SS 316. Ob leeg muaj lawv cov khoom tshwj xeeb uas ua rau lawv tsim nyog rau kev siv sib txawv. Hauv tsab xov xwm no, peb yuav tshawb txog cov yam ntxwv thiab kev siv ntawm SS 304 thiab 316.
Ua ntej, cia peb saib ntawm SS 304. Qib no yog austenitic stainless hlau uas muaj chromium thiab npib tsib xee. Nws yog dav siv hauv kev lag luam khoom noj khoom haus thiab dej haus, kev tsim vaj tsev, thiab kev tsim khoom vim nws zoo heev corrosion kuj, yooj yim txij nkawm, thiab tus nqi qis.
SS 304 muaj cov ntsiab lus siab tshaj plaws ntawm 0.08%, ua rau nws tiv taus corrosion los ntawm oxidation, organic chemicals, thiab acids. Tsis tas li ntawd, nws muaj lub zog tensile siab, ua rau nws ruaj khov thiab tiv taus deformation. Cov qib no kuj yog ductile, ua rau nws yooj yim rau khoov thiab tsim rau hauv cov duab sib txawv.
SS 304 feem ntau yog siv los tsim cov khoom siv hauv chav ua noj, dab dej, cov khoom siv ua zaub mov, thiab cov khoom siv vaj tsev xws li tes tuav, tubing, thiab phab ntsa cladding. Nws kuj yog siv nyob rau hauv lub tsheb thiab aerospace kev lag luam, qhov twg nws yog siv rau nws lub zog thiab corrosion kuj.
Ntawm qhov tod tes, SS 316 yog qib uas muaj ntau dua ntawm chromium, npib tsib xee, thiab molybdenum dua li SS 304. Nws tseem yog austenitic stainless hlau uas muaj kev tiv thaiv corrosion zoo tshaj hauv cov cheeb tsam hnyav uas muaj chlorides thiab acids. Qib no feem ntau yog siv rau hauv marine, tshuaj ua, thiab kev kho mob kev lag luam rau nws cov corrosion kuj thiab biocompatibility.
Ib qho ntawm cov khoom tshwj xeeb ntawm SS 316 yog nws qhov tsis kam rau pitting thiab crevice corrosion, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig chloride-nplua nuj. Nws kuj muaj qhov kub thiab txias zoo dua li SS 304, ua rau nws tsim nyog rau cov ntawv thov kub.
SS 316 yog siv nyob rau hauv kev lag luam marine rau kev tsim cov nkoj, cov khoom siv hauv nkoj, thiab cov chaw ua haujlwm sab nrauv vim nws zoo heev corrosion tsis kam rau seawater. Nws kuj tseem siv rau hauv kev lag luam zaub mov thiab dej haus rau cov khoom siv uas ua cov khoom noj acidic thiab dej haus. Hauv kev lag luam kho mob, qib no yog siv rau kev cog qoob loo, cov cuab yeej phais, thiab kev sib koom ua ke vim nws cov biocompatibility.
Hauv kev xaus, ob qho tib si SS 304 thiab SS 316 yog cov ntaub ntawv zoo heev uas muaj cov khoom tshwj xeeb tsim nyog rau ntau yam kev siv. SS 304 yog dav siv rau nws cov nqi pheej yig, kev saib xyuas yooj yim, thiab zoo heev corrosion kuj, thaum SS 316 yog siv nyob rau hauv ib puag ncig hnyav uas yuav tsum tau superior corrosion kuj thiab kub kuj. Thaum kawg, kev xaiv ntawm ob qib yuav yog nyob ntawm daim ntawv thov npaj thiab cov kev cai tshwj xeeb ntawm qhov project.
