SAE 304 stainless hlau yog qhov feem ntau steel hlau. Cov hlau muaj ob txoj kev chromium (nruab nrab ntawm 18% thiab 20%) thiab thib pua (nruab nrab ntawm 8%) [1] cov hlau uas yog cov qauv hlau tseem ceeb. Nws yog ib tus neeg siv tshuaj hlau tsis huv. Nws tsis tshua muaj hluav taws xob thiab cuam tshuam cov khoom siv hluav taws xob ntau dua li cov hlau. Nws sib nqus, tab sis tsis sib nqus dua li hlau. Nws muaj ntau dua corrosion tsis kam ntau dua li cov hlau tsis tu ncua thiab siv dav siv vim yog qhov yooj yim nyob rau hauv ntau yam duab. [1]
Cov ntsiab lus npib tsib xee nyob rau hauv stainless hlau unsed s9400 dig muag flanges tiv thaiv cov khoom siv xeb, suav nrog acetic acid thiab phosphoric acid, uas yog ib qho acid.
Lub pas dej stainless 304 flange ua rau nws yooj yim rau siv cov tshuab uas yuav tsum tau vuam.
ASTM A182 F304 stainless hlau flanges yog tsim tau raws li Asme B16.5 150 #, 600 #, 900 #, 2500 #.
Nrog qhov no zoo yaj taw tes, cov flange tuaj yeem tiv taus kub txog 870 degrees Celsius. Muaj ntau hom flanges raws li hom ntsej muag. 304 Stainless hlau flanges yog muaj nrog tiaj tus, tsa thiab ntiv nplhaib pob qij txha.
Ib qho kev siv tshuaj tsis huv stainless hlau, tshuaj lom neeg muaj pes tsawg leeg ntawm stainless hlau 304 flanges muab nws kom zoo dua cov roj carbon steel. Txawm hais tias lawv raug nqi ntau dua yav dhau los alloys, kev ua haujlwm uas lawv muab siv daim ntawv thov mus rau qib tom ntej.
Hauv kev lag luam uas tuav nitric acid, qib 304 stainless hlau xov flanges tuaj yeem siv nyob rau ntawm kub txog li 176¡Ãf. 304 Stainless hlau flanges yog ruaj thiab tsis kim tsawg dua li lwm cov alloy hom. Vim yog cov oxidizing cov yam ntxwv ntawm cov tshuaj no, nws yuav nrawm nrawm yog siv cov kev ua kom muaj 55%.
Lwm txoj kev lag luam uas siv cov alloy yog cov zaub mov thiab dej haus kev lag luam, uas siv acetic acid raws li cov tshuaj tiv thaiv. Acetic acid yog ib organic acid uas yog corrosive rau cov roj carbon hlau.
Hom 316 stainless hlau yog tsim mus rau lwm qib vim nws cov peev xwm ntau ntawm cov peev xwm thiab yog txawv los ntawm kev siv tsab ntawv "l" hauv nws lub npe. L sawv cev cov ntsiab lus muaj roj carbon tsawg hauv cov hlau.
316L yog cov paub zoo tshaj plaws ntawm cov tuam ntxhab rau kev tawg ua tom qab cov txheej txheem vuam tiav. Qhov no ua rau 316L thawj qhov kev xaiv rau cov tuam ntxhab tab tom tsim tsa cov qauv hlau rau kev siv cov ntawv thov.
Dhau li ntawm L, muaj lwm cov lus qhia me me xws li F, N, H thiab ntau lwm tus, ntawm cov roj ntsha, npib chromenum, thiab lwm yam kom tau txais cov khoom xav tau.
