254smo 904L yeeb nkab chaw tsim tshuaj paus,tiv tauj pebkom tau txais kev tsocai dawb thiab qauv!
Tshuaj muaj pes tsawg leeg:
254 TSI:Siab dua chromium (19.5-20.5%), zoo sib xws nickel (17.5-18.5%), siab molybdenum (6-6.5%). Nws kuj muaj tooj liab (0.5-1.0%) thiab nitrogen (0.18-0.22%) rau kev txhim kho corrosion.
904L: Muaj cov qib siab ntawm chromium (19-23%), npib tsib xee (23-28%), thiab molybdenum (4-5%), nrog ntxiv ntawm tooj liab (1-2%) thiab lwm yam me me xws li manganese, silicon, thiab sulfur.
Corrosion Resistance:
254 TSI: Stainless hlau 254 SMONws muaj kev tiv thaiv zoo heev rau pitting corrosion, crevice corrosion, thiab kev ntxhov siab corrosion tawg los ntawm chlorides. Nws yog tshwj xeeb tshaj yog haum rau siv nyob rau hauv corrosive ib puag ncig xws li seawater, brine daws, thiab halogenated acids.
904L: 904L stainless hlau muaj kev tiv thaiv zoo rau ntau qhov chaw corrosive xws li sulfuric acid, phosphoric acid, thiab chloride- muaj cov kev daws teeb meem.
Mechanical Behavior:
904L thiab 254 smo yeeb nkab muaj cov khoom sib piv nrog rau lub zog tensile, lub zog tawm los, thiab elongation. Ob leeg cov ntaub ntawv muaj lub zog siab thiab toughness los tiv taus cov xwm txheej hnyav.
Solderability:
254 TSI:Nws kuj muaj qhov zoo solderability thiab tuaj yeem welded siv TIG, MIG, lossis lwm txoj kev tsim nyog. Nws feem ntau tsis tas yuav tsum tau preheating los yog post-weld heat treatment.
904L: Zoo weldability, TIG (tungsten inert gas) los yog MIG (hlau inert gas) thiab lwm yam txheej txheem vuam siv tau. Txawm li cas los xij, nws yuav xav tau preheating thiab tom qab-weld kho cua sov kom tsis txhob hnov qab thiab tswj kev tiv thaiv corrosion.
Daim ntawv thov:
904L: Stainless hlau 254smo feem ntau yog siv rau hauv cov ntawv thov xws li cov khoom siv tshuaj lom neeg, tshuaj, cov khoom siv hluav taws xob, thiab cov tso tsheb hlau luam cia tuav cov xov xwm corrosive.
254 TSI:904L stainless hlau pom cov ntawv thov hauv kev lag luam xws li offshore roj thiab roj, kev ua tshuaj lom neeg, cov nroj tsuag desalination, pulp thiab ntawv, thiab flue gas tu tshuab qhov twg zoo heev tiv thaiv corrosion thiab chloride nres.
Cov lus nug nquag nug (FAQ)
1. Puas yog 254SMO zoo dua li 904L?
Nws nyob ntawm ib puag ncig.254 SIByog superior rau siab -chloride ib puag ncig zoo li dej hiav txwv vim nws muaj siab duaPREN (43+)piv rau904L (~34). txawm li cas los xij,904Lfeem ntau yog qhov kev xaiv zoo tshaj plaws rau kev tuav cov concentration ntawm sulfuric acid vim nws cov ntsiab lus tshwj xeeb tooj liab.
2. Kuv puas tuaj yeem siv 904L hloov 254SMO hauv dej hiav txwv?
Thaum 904L muaj kev tiv thaiv corrosion zoo, nws muaj kev cuam tshuam rau pitting thiab crevice corrosion nyob rau hauv dej hiav txwv sov los yog nyob rau hauv marine tej yam kev mob . 254SMO tau tshwj xeeb engineered los tiv thaiv tej yam kev mob thiab feem ntau yog suav tias yog "tus qauv" rau marine thiab desalination daim ntaub ntawv.
3. PREN ntawm 254SMO thiab 904L yog dab tsi?
254 TSI:Feem ntau muaj PREN ntawm42 rau 45.
904L:Feem ntau muaj PREN ntawm34 rau 36. PREN siab dua qhia tau tias muaj kev tiv thaiv zoo dua rau thaj chaw pitting hauv chloride- thaj chaw nplua nuj.
