Muaj ntau hom kev ua kom tsis muaj roj stainless hlau, 304 stainless hlau yog qhov ua tau ib hom ntawm Austenitic steel. Yog li nws tsis muaj teeb meem txawm tias nws yog qhov zoo lossis tsis zoo. Hangao Tech (Seko Machinery) Stainless hlau muaj lub tshuab hluav taws xob ntau lawm kov ntau yam khoom siv rau Weld yooj yim, xws li kab tshwj xeeb ua kom tau ntsib lawv txhua tus.
Anustenitic stainless hlau yog cov feem ntau siv tsev neeg stainless hlau nrog kev lag luam tsis ntev los no ntawm 75%. Raws li lub npe qhia, microstructure muaj cov theem ntawm austenite. Hauv 300 series, cov ntsiab lus chromium yog 16% -22% thiab cov ntsiab lus npib tsib xee yog 8% -14%. Thaum Nickel nce ductility, nws yog nquag rau cov khoom siv tsis sib xws. Nws tau ncav cuag $ 50,000 ib tuj hauv 2007, tab sis tam sim no mus cuag $ 10,000 ib tuj. Lub 200 koob 200 Series tau tsim los them nyiaj rau tus nqi loj ntawm Nickel, hloov qee cov neeg tsib xee thiab nitrogen.
Cov feem ntau siv Anustenitic Stainless Hlau 304 Stainless Hlau
Nws muaj pes tsawg leeg muaj 18% chromium thiab 8% npib tsib xee, thiab qee zaum tau hu ua 18-8 stainless hlau. Txawm li cas los xij, lub npe no tsis pom zoo rau kev siv dav dav raws li lub thev naus laus zis nyob rau hauv cov kev cai uas muaj kev sib tw nrog lwm qib. Piv txwv li, SS31 muaj cov ntsiab lus chromium zoo sib xws thiab muaj tsib xee, tab sis nws tseem muaj txog 2% molybdenum rau kev tiv thaiv corrosion ntxiv. Thaum lub sij hawm vuam lossis analing txias, chromium carbide ntxuav daim ntawv ntawm microstructure cov ciaj ciam. Hauv cov cheeb tsam no, chromium khoom siv carbides ntawm cov nuj nqis ntawm ib puag ncig cov hlau. Tsawg cov pa roj carbon versions ntawm Austenitic stainless hlau yog txhais los ntawm cov lus qhia tau l, xws li 304L lossis 316L. Lwm txoj hauv kev los tiv thaiv cov rhiab yog ntxiv rau titanium lossis niobium, uas khi uas nyiam rau cov pa roj carbon.
Austenitic stainless hlau tsis yog cua sov kho tau
Qee qhov ntawm 200, 300, 400 Series stainless cov hlau yog ua haujlwm hnyav kom muaj zog thaum cov txheej txheem tsim, tab sis Austenitic Stainless hlau tau sai dua thiab yooj yim rau lub tshuab. Thaum Austenitic stainless hlau feem ntau muaj zoo dua tag nrho cov corrosion tsis kam, muaj kev muaj txiaj ntsig zoo, hloov pauv hloov kho kom haum rau kev tsim cov alloys ntawm cov alloys ntawm alloys.
Hauv cov ntawv thov kub siab, xws li tso tawm cov tshuab uas tuaj yeem ncav cuag 1650 degrees stainless hlau muaj cov khoom zoo dua thiab tsis kam mus ua kom qaug zog. Lawv muaj qis dua thermal expansion thiab siab dua thermal conductivity tshaj li cov hlau tsis huv. Cov hlau ferritic stenless ua nkig raws li qhov ntsuas kub tsawg dua. Qhov hloov hloov hloov tsheb kauj ruam yog li 32 degrees Fahrenheit, tab sis nws nyob ntawm lub alloy muaj pes tsawg leeg. Austenitic stainless hlau tsis dhau los ua nkig ntawm tsis kub.
