Nyob zoo sawv daws! Hnub no, kuv xav qhia rau koj txog cov khoom siv stainless hlau xav tsis thoob -2205 Duplex Stainless Hlau. Nws tsis tsuas yog muaj lub zog siab, tab sis kuj muaj qhov tshwj xeeb corrosion kuj, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau ntau yam lag luam.
Khoom Description
Duplex stainless hlau, tseem hu ua UNS S32205 los yog EN 1.4462, yog qib nrov ntawm stainless hlau uas belongs rau tsev neeg duplex alloys. Nws yog tus cwj pwm los ntawm nws lub zog siab thiab zoo heev corrosion kuj zog.
Lo lus "duplex" yog hais txog lub microstructure ntawm no stainless hlau, uas muaj kwv yees li sib npaug ntawm cov ferrite thiab austenite theem. Lub uniqueness ntawm no Stainless Hlau Coils nyob rau hauv nws duplex qauv, combining qhov zoo ntawm austenite thiab ferrite theem. Qhov no ua rau nws tiv taus siab, kub, thiab corrosive media nyob rau hauv ib puag ncig hnyav, muab kev txhawb nqa ruaj khov rau cov ntawv thov kev lag luam. Lub xub ntiag ntawm ob theem muab kev sib xyaw ua ke ntawm cov khoom tsim nyog, suav nrog kev ua kom muaj zog, zoo toughness, thiab txhim kho tsis kam rau kev ntxhov siab corrosion cracking piv rau cov pa austenitic stainless hlau.
Cov Khoom Zoo
Cov hlau tsis muaj steel no muaj kev tiv thaiv zoo rau ntau qhov chaw corrosive, nrog rau cov chloride-muaj ib puag ncig xws li seawater thiab marine ib puag ncig. Nws ua tau zoo nyob rau hauv acidic, alkaline, thiab chloride-nplua nuj ib puag ncig.
Cov hlau tsis muaj steel no muaj zog ntau dua piv rau austenitic stainless hlau, uas tso cai rau cov seem thinner thiab txo qhov hnyav hauv kev siv cov qauv.
Zoo Toughness thiab Ductility
Nws nthuav tawm zoo toughness thiab ductility, uas ua rau nws haum rau daim ntaub ntawv raug rau dynamic loads, xws li cov hlab ntsha siab thiab offshore lug.
Cov khoom no muab kev tiv thaiv zoo tshaj rau kev ntxhov siab corrosion cracking, uas yog ib hom kev ua tsis tiav hauv austenitic stainless hlau nyob rau hauv ib puag ncig chloride nplua nuj.
Weldability
Qhov no muaj qhov zoo weldability, thiab nws tuaj yeem ua tau yooj yim welded siv cov txheej txheem vuam zoo. Txawm li cas los xij, cov txheej txheem vuam kom zoo thiab kev tswj cov khoom siv hluav taws xob yog tsim nyog los tswj cov khoom xav tau thiab kev tiv thaiv corrosion.
Cov khoom siv
2205 stainless hlau yog siv nyob rau hauv ib tug ntau yam ntawm daim ntawv thov nyob rau hauv ntau yam lag luam vim nws zoo heev ua ke ntawm cov khoom. Qee qhov kev siv ntawm stainless hlau muaj xws li:
Nws yog dav siv nyob rau hauv cov khoom siv tshuaj xws li reactors, cia tanks, thiab pipelines. Nws zoo heev corrosion kuj thiab siab zog ua rau nws haum rau tuav corrosive tshuaj.
Qhov no duplex stainless hlau yog ua hauj lwm nyob rau hauv offshore platforms, pipelines, thiab cov khoom siv nyob rau hauv cov roj thiab roj kev tshawb fawb, ntau lawm, thiab refining txheej txheem. Nws pom zoo corrosion kuj nyob rau hauv ib puag ncig chloride-nplua nuj, ua rau nws zoo tagnrho rau marine thiab subsea daim ntaub ntawv..
Vim nws zoo heev corrosion kuj thiab tsis kam mus pitting nyob rau hauv seawater, no alloy yog feem ntau siv nyob rau hauv desalination nroj tsuag rau Cheebtsam xws li tshav kub exchangers, kav, thiab twj tso kua mis.
Lub zog siab thiab zoo toughness ua rau cov hlau no haum rau kev siv cov qauv. Nws yog siv nyob rau hauv kev tsim kho ntawm cov choj, vaj tse, thiab infrastructure qhov twg ob qho tib si corrosion kuj thiab lub zog tseem ceeb heev.
Lwm Daim Ntawv Thov: Nws kuj tseem siv rau hauv kev lag luam xws li marine, mining, kev kho dej khib nyiab, tshuaj, thiab kev siv vaj tsev, qhov twg kev sib xyaw ua ke ntawm kev tiv thaiv corrosion, lub zog, thiab kev siv nyiaj txiag xav tau.
304 lossis 2205 Stainless?
Ob leeg alloys muaj lawv tus kheej lub zog thiab tsis muaj zog, thiab cov kev xaiv zoo dua yuav txawv raws li cov yam ntxwv xws li corrosion kuj, lub zog, nqi, thiab tej yam kev mob tshwj xeeb.
| Cov khoom | 304 Stainless hlau | 2205 Stainless hlau |
| Microstructure | Austenitic | Duplex (50% ferrite, 50% austenite) |
| Corrosion Resistance | Zoo tiv thaiv corrosion nyob rau hauv ib puag ncig me me | Zoo heev tiv thaiv corrosion, nrog rau cov chloride-nplua nuj, ib puag ncig (xws li dej hiav txwv) |
| Pitting thiab Crevice | Yooj yim rau pitting thiab crevice corrosion nyob rau hauv ib puag ncig chloride nplua nuj | Siab tiv taus pitting thiab crevice corrosion vim siab chromium, molybdenum, thiab nitrogen cov ntsiab lus |
| Lub zog | Lub zog tensile nruab nrab thiab yield zog | Lub zog tensile siab dua thiab lub zog tawm los piv rau 304 stainless hlau |
| Weldability | Weldability zoo heev | Zoo weldability, tab sis cov txheej txheem tsim nyog thiab kev tswj kom sov yog xav tau |
| Nqi | Tus nqi qis dua piv rau duplex stainless hlau | Tus nqi siab dua piv rau 304 stainless hlau vim nws cov ntsiab lus alloy siab dua thiab kev ua haujlwm ntxiv |
| Daim ntawv thov | Cov khoom siv ua zaub mov, khoom siv hauv chav ua noj, kev siv vaj tse, kev siv dav dav | Cov cuab yeej siv tshuaj ua haujlwm, roj thiab roj kev lag luam, cov nroj tsuag desalination, cov khoom siv hauv tsev, offshore platforms, pipelines |
Cov muaj pes tsawg leeg sib txawv heev. Ntawm no yog ib qho kev sib piv ntawm lawv cov composition:
| Kev sib xyaw ntawm 304 alloy | Kev sib xyaw ntawm 2205 Duplex stainless | ||
| Cov pa roj carbon (C) | Ntau tshaj 0.08 feem pua | Cov pa roj carbon (C) | Qhov siab tshaj plaws 0.03 feem pua |
| Silicon (Si) | Ntau tshaj 1.00 feem pua | Silicon (Si) | Ntau tshaj 1.00 feem pua |
| Manganese (Mn) | Ntau tshaj 2.00 feem pua | Manganese (Mn) | Ntau tshaj 2.00 feem pua |
| Phosphorus (P) | Ntau tshaj 0.045 feem pua | Phosphorus (P) | Ntau tshaj 0.030 feem pua |
| Sulfur (S) | Ntau tshaj 0.030 feem pua | Sulfur (S) | Ntau tshaj 0.020 feem pua |
| Chromium (Cr) | 18. 0-20 0 feem pua | Chromium (Cr) | 22. 0-23 0 feem pua |
| Nickel (Ni) | 8.0-10.5 feem pua | Nickel (Ni) | 4.5-6.5 feem pua |
Cov lej ntawm lwm cov khoom xws li nitrogen (N) thiab hlau (Fe) |
Molybdenum (hli) | 3.0-3.5 feem pua | |
| Nitrogen (N) | 0 14-0.20 feem pua | ||
| Hlau (Fe) | Tseem nyobg sib | ||
Nyob rau hauv cov nqe lus ntawm muaj pes tsawg leeg, qhov sib txawv tseem ceeb yog ob stainless hlau muaj qib siab ntawm chromium, npib tsib xee, molybdenum, thiab nitrogen, nrog rau qee theem ferrite. Cov kev sib ntxiv no ua rau cov yam ntxwv duplex thiab zoo heev corrosion kuj ntawm 2205 stainless hlau. Ntawm qhov tod tes, 304 stainless hlau feem ntau yog austenitic stainless hlau nrog qis qis ntawm chromium thiab npib tsib xee.304 stainless hlau yog haum rau ntau yam kev siv lub hom phiaj nrog rau nruab nrab corrosion kuj yuav tsum tau, thaum 2205 stainless hlau yog xav tau thaum zoo corrosion kuj, siab zog, thiab kuj rau chloride-nplua nuj ib puag ncig yog tsim nyog.
Nyob rau hauv cov ntsiab lus, 2205 Stainless hlau muab lub zoo meej ua ke ntawm siab zog thiab corrosion kuj, ua rau nws ib tug zoo tagnrho xaiv rau ntau yam kev siv. Nws excels tsis tau tsuas yog nyob rau hauv mechanical kev ua tau zoo tab sis kuj nyob rau hauv resisting hnyav ib puag ncig tej yam kev mob. Txawm hais tias nyob rau hauv tshuaj lom neeg, roj av, marine engineering, lossis lwm yam kev lag luam, 2205 Stainless Steel Coils yuav muab kev ua tau zoo thiab kev tiv thaiv txhim khu kev qha rau koj cov haujlwm.
Yog tias koj tab tom nrhiav cov khoom siv uas tuaj yeem tiv taus qhov chaw huab cua, 2205 Stainless Steel Coils yog qhov koj xaiv zoo tshaj plaws. Lawv yuav pab koj tsim cov haujlwm ruaj khov thiab ruaj khov, pab txhawb rau lawv txoj kev vam meej thiab kev loj hlob ruaj khov.
Peb pab
Peb muab customized ntev, kev kho deg thiab ntim cov kev pab cuam kom tau raws li cov kev xav tau sib txawv ntawm cov neeg siv khoom. Peb pab neeg yuav muab cov neeg siv khoom nrog kev sib tham thiab kev txhawb nqa kom ntseeg tau tias kev yuav khoom txaus siab rau cov neeg siv khoom.
Yog xav paub ntxiv txog no Stainless Hlau Coils, thov hu rau peb. Cia peb tshawb nrhiav qhov tsis muaj peev xwm ntawm cov khoom zoo kawg no ua ke!
