S31803 Duplex Stainless Steel: Kev Tiv Thaiv Kev Sib Tsoo Zoo Tshaj Plaws thiab Lub Zog Siab rau Cov Ntawv Siv Hauv Kev Lag Luam

S31803, tseem hu ua Duplex 2205 lossis F60, yog qib siab ntawm cov hlau duplex stainless hlau hauv kev lag luam thoob ntiaj teb. Tau lees paub los ntawm Unified Numbering System (UNS), cov khoom no muaj nqis rau nws qhov kev tiv thaiv corrosion zoo heev, lub zog kho tshuab zoo dua, thiab kev ua tau zoo hauv qhov chaw nyuaj.

Cov Tshuaj Lom Zem Tseem Ceeb thiab Cov Qauv

S31803 duplex stainless hlau muaj kev sib xyaw ua ke ntawm cov khoom sib xyaw uas xa nws cov khoom zoo tshaj plaws:

• Chromium (Cr):Kwv yees li ntawm 22% - Txhim kho kev tiv thaiv xeb, tshwj xeeb tshaj yog tiv thaiv kev xeb pitting thiab crevice.

• Nickel (Ni):Kwv yees li 5.0–6.0% - Txhim kho qhov tawv thiab ductility.

• Molybdenum (Mo):Kwv yees li 3.0% - Txhawb kev tiv thaiv rau qhov xeb hauv zos, tshwj xeeb tshaj yog nyob rau hauv cov chaw muaj chloride ntau.

• Nitrogen (N):Kwv yees li 0.18% - Ua kom muaj zog thiab pab txhawb kev tiv thaiv kev ntxhov siab.

Qhov tshwj xeeb dual-phase microstructure, sib xyaw ua ke ferritic thiab austenitic theem, ua rau muaj cov khoom siv kho tshuab uas kwv yees li ob npaug ntawm cov hlau stainless austenitic ib txwm muaj thaum tswj hwm qhov zoo heev ductility thiab toughness.

Cov Khoom Zoo Tshaj Plaws thiab Cov Txiaj Ntsig

Kev Tiv Thaiv Kev Sib Tsoo Zoo Dua

S31803 zoo heev hauv kev tiv taus ntau hom kev xeb, suav nrog:

• Kev puas tsuaj ntawm cov qhov thiab cov kab nrib pleb:Nws cov chromium thiab molybdenum cov ntsiab lus siab ua rau nws ua tau zoo heev hauv cov chaw chloride.

• Kev Nyuaj Siab Corrosion Cracking:Cov qauv duplex muab kev tiv thaiv ntau dua rau kev tawg hauv qab kev ntxhov siab, txawm tias thaum raug rau cov xov xwm nruj.

Lub Zog Kho Kom Zoo Dua

• Lub Zog Tensile Siab:Feem ntau, lub zog tensile ntawm S31803 tshaj 500 MPa, ua rau nws zoo tagnrho rau cov ntawv thov siab.

• Kev Ruaj Kho Dua:Qhov microstructure sib npaug tsis yog tsuas yog txhawb nqa lub zog xwb tab sis kuj ua kom muaj kev ruaj khov thiab ductility, uas yog qhov tseem ceeb hauv cov chaw ua haujlwm dynamic.

Kev vuam zoo heev

Txawm hais tias yuav tsum tau saib xyuas tshwj xeeb thaum lub sijhawm vuam kom tsis txhob muaj kev puas tsuaj hauv thaj chaw uas raug cua sov, cov txheej txheem vuam zoo thiab kev kho tom qab vuam tuaj yeem ua kom muaj zog thiab tsis muaj qhov tsis zoo. Qhov no ua rau S31803 yog qhov kev xaiv zoo rau kev tsim khoom thiab kho haujlwm.

Cov Ntawv Thov Kev Lag Luam

S31803 duplex stainless hlau pom kev siv dav hauv ntau yam lag luam vim nws qhov kev sib xyaw ua ke ntawm lub zog thiab kev tiv thaiv corrosion. Cov chaw siv tseem ceeb suav nrog:

• Cov Khoom Siv Ua Tshuaj:Zoo tagnrho rau cov reactors, cov tank cia khoom, thiab cov kav dej uas xav tau kev tiv thaiv cov tshuaj lom neeg hnyav.

• Kev Lag Luam Roj thiab Roj Av:Siv dav hauv cov kav dej, cov li qub, thiab cov khoom siv, tshwj xeeb tshaj yog nyob rau hauv cov xwm txheej siab thiab cov tshuaj chloride siab.

• Kev Tsim Kho Marine thiab Kev Tsim Nkoj:Nws txoj kev tiv thaiv rau kev xeb dej ntsev ua rau nws tsim nyog rau cov qauv hauv hiav txwv, cov khoom siv hauv hiav txwv, thiab lwm yam kev siv hauv hiav txwv.

• Cov Chaw Tsim Khoom Siv Hluav Taws Xob:Ua haujlwm hauv cov chaw tsim hluav taws xob thiab cov chaw tsim hluav taws xob nuclear qhov twg kev ua haujlwm ruaj khov thiab kev ua haujlwm mus sij hawm ntev yog qhov tseem ceeb.

• Kev Tsim Kho thiab Cov Cheebtsam Architectural:Nws qhov tiav zoo nkauj thiab ruaj khov tau ua rau nws siv rau hauv cov qauv tsev niaj hnub thiab cov ntawv thov zoo nkauj

   

Kev Ua Raws Li Cov Qauv Thoob Ntiaj Teb

S31803 duplex stainless hlau ua raws li ntau tus qauv tseem ceeb thoob ntiaj teb thiab lub teb chaws, ua kom nws ntseeg tau thiab zoo. Piv txwv li:

• ASME B16.11:Qhia txog nws daim ntawv thov hauv kev tsim cov qhov (socket) vuam thiab cov yeeb nkab fittings.

• ASTM A240/A240M:Muab cov lus qhia rau cov phaj hlau tsis xeb uas siv rau hauv ntau yam kev siv.

• EN 10088-2:Cov lus qhia ntxaws ntxaws txog cov kev cai rau cov khoom siv hlau tsis xeb hauv Tebchaws Europe.

Qhov kev ua raws li cov qauv nruj no lav tias S31803 ua tau raws li qhov xav tau ntawm cov ntawv thov tseem ceeb thoob ntiaj teb.

Xaus lus

S31803 duplex stainless hlau sawv tawm ua cov khoom siv tau ntau yam thiab ruaj khov zoo tagnrho rau cov chaw ua haujlwm nyuaj. Nws qhov kev sib xyaw ua ke zoo heev ntawm lub zog siab, kev tiv thaiv corrosion zoo dua, thiab kev vuam txhim khu kev qha ua rau nws yog qhov kev xaiv zoo tshaj plaws hauv ntau qhov chaw xws li kev ua tshuaj lom neeg, roj thiab roj av, kev tsim kho marine, kev tsim hluav taws xob, thiab kev tsim kho. Raws li kev lag luam txuas ntxiv thawb cov kev txwv ntawm kev ua tau zoo thiab kev ruaj khov, S31803 tseem yog cov khoom siv nyiam uas muab tus nqi ntev thiab kev nyab xeeb.

Yog xav paub ntxiv txog cov lus qhia txog kev siv tshuab thiab cov kev daws teeb meem uas haum rau koj, cov kws tshaj lij hauv kev lag luam raug txhawb kom saib cov ntaub ntawv qhia txog cov khoom siv thiab tiv tauj cov neeg muag khoom uas koj ntseeg siab.

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