Qhov twg kim dua 304 lossis 316 Stainless Hlau?
Dec 08, 2023
Qhov twg kim dua 304 lossis 316 stainless hlau?
Taw qhia
Stainless hlau yog cov khoom siv ntau yam thiab siv dav hauv ntau yam lag luam xws li kev tsim kho, tsheb, thiab kev ua zaub mov. Nws muaj kev tiv thaiv corrosion zoo heev, durability, thiab zoo nkauj txaus nyiam. Ob qib uas siv ntau yam ntawm cov hlau tsis muaj steel yog 304 thiab 316. Hauv kab lus no, peb yuav tshawb xyuas qhov sib txawv ntawm ob qib thiab txiav txim siab seb qhov twg kim dua.
Kev sib xyaw thiab cov khoom ntawm 304 Stainless Hlau
304 stainless hlau, tseem hu ua 18/8 stainless hlau, yog cov qib siab tshaj plaws ntawm stainless hlau. Nws muaj 18% chromium thiab 8% npib tsib xee, uas ua rau nws cov corrosion kuj thiab lub zog. Tsis tas li ntawd, nws muaj cov ntsiab lus carbon tsawg, ua rau nws tsis tshua muaj kev cuam tshuam rau kev hnov qab thiab intergranular corrosion.
Kev sib xyaw thiab cov khoom ntawm 316 Stainless Hlau
316 stainless hlau, tseem hu ua marine qib stainless hlau, muaj 16-18% chromium, 10-14% nickel, thiab 2-3% molybdenum. Qhov sib ntxiv ntawm molybdenum txhim kho nws cov kev tiv thaiv corrosion, tshwj xeeb tshaj yog tiv thaiv cov tshuaj chloride xws li dej hiav txwv. Vim nws cov tshuaj tiv thaiv zoo tshaj plaws thiab lub zog tensile ntau dua, 316 stainless hlau feem ntau yog siv rau hauv marine thiab ntug dej hiav txwv ib puag ncig.
Qhov sib txawv ntawm Corrosion Resistance
Ob leeg 304 thiab 316 stainless hlau muab kev tiv thaiv corrosion zoo. Txawm li cas los xij, 316 stainless hlau nthuav tawm superior corrosion kuj piv rau 304 stainless hlau, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig chloride. Qhov no ua rau 316 stainless hlau yog qhov kev xaiv zoo tshaj plaws rau cov ntawv thov raug dej ntsev lossis lwm yam tshuaj corrosive. Yog li ntawd, nws cov kev tiv thaiv corrosion ntau dua ua rau nws tus nqi siab dua.
Mechanical Properties
Hais txog cov khoom siv kho tshuab, ob qho tib si 304 thiab 316 stainless hlau muaj lub zog zoo thiab tawv. Txawm li cas los xij, vim qhov sib ntxiv ntawm molybdenum, 316 stainless hlau muaj zog tensile ntau dua thiab zoo dua rau pitting thiab crevice corrosion. Cov khoom no ua rau 316 stainless hlau haum rau cov ntawv thov uas xav tau kom muaj zog thiab ua haujlwm ntev.
Nqe sib piv
Tam sim no cia peb hais lo lus nug tseem ceeb: uas yog kim dua, 304 lossis 316 stainless hlau? Feem ntau, 316 stainless hlau yog kim dua 304 stainless hlau. Tus nqi sib txawv yuav txawv nyob ntawm seb yam xws li kev ua lag luam, muaj, thiab ntau npaum li cas. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias tus nqi ntxiv ntawm 316 stainless hlau feem ntau yog vim muaj cov molybdenum, uas txhim kho nws cov corrosion kuj.
Daim ntawv thov
Ob leeg 304 thiab 316 stainless hlau pom cov ntawv thov hauv ntau qhov kev lag luam. 304 stainless hlau feem ntau yog siv rau hauv cov khoom siv hauv chav ua noj, cov khoom siv, thiab cov khoom siv vim nws qhov zoo corrosion kuj thiab kev zoo nkauj. Nws kuj yog siv nyob rau hauv architectural lug, automotive qhov chaw, thiab cia tso tsheb hlau luam.
Ntawm qhov tod tes, 316 stainless hlau yog qhov nyiam rau cov ntawv thov cuam tshuam nrog cov dej ntsev, tshuaj lom neeg, thiab ib puag ncig hnyav. Nws yog siv rau hauv cov khoom siv marine, tshuaj ua cov nroj tsuag, cov khoom siv tshuaj, thiab cov khoom siv kho mob.
Xaus
Hauv kev xaus, 316 stainless hlau yog kim dua 304 stainless hlau vim nws cov corrosion kuj ntau dua, feem ntau yog vim qhov sib ntxiv ntawm molybdenum. Thaum ob qib muaj lawv cov kev siv tshwj xeeb, 304 stainless hlau feem ntau siv rau hauv cov ntawv thov dav dav, thaum 316 stainless hlau nyiam nyob rau hauv ib puag ncig uas muaj kev pheej hmoo siab dua. Nws yog ib qho tseem ceeb uas yuav tau xav txog cov kev cai tshwj xeeb ntawm koj qhov project ua ntej txiav txim siab seb qib twg ntawm cov hlau tsis muaj steel siv, suav nrog cov nqi, kev tiv thaiv corrosion, thiab cov khoom siv kho tshuab.