I-S31803 Duplex Stainless Steel: I-Superior Corrosion Resistance namandla Aphakeme Ezicelo Zezimboni

I-S31803, eyaziwa nangokuthi i-Duplex 2205 noma i-F60, iyibanga elibhekwa kakhulu le-duplex yensimbi engagqwali emakethe yomhlaba. Njengoba iqashelwa ngaphansi kwe-Unified Numbering System (i-UNS), lesi sici saziswa kakhulu ngenxa yokumelana nokugqwala okukhethekile, amandla aphakeme okusebenza, nokusebenza okuguquguqukayo ezindaweni ezinokhahlo.

Ukubunjwa Kwekhemikhali Ebalulekile Nesakhiwo

I-S31803 duplex steel stainless steel ihlanganisa ingxube elinganayo yezinto ezihlanganisiwe eziletha izici zayo ezivelele:

• I-Chromium (Cr):Cishe ama-22% - Athuthukisa ukumelana nokugqwala, ikakhulukazi ngokumelene nokugqwala nokugqwala kwemifantu.

• I-Nickel (Ni):Cishe ku-5.0-6.0% - Ithuthukisa ukuqina kanye ne-ductility.

• I-Molybdenum (Mo):Cishe u-3.0% - Ikhuphula ukumelana nokugqwala kwendawo, ikakhulukazi ezindaweni ezinothe nge-chloride.

• I-nitrogen (N):Cishe i-0.18% - Yandisa amandla futhi ifake isandla ekucindezelekeni ukumelana nokugqwala.

I-microstructure enezigaba ezimbili eyingqayizivele, ehlanganisa izigaba ze-ferritic kanye ne-austenitic, iphumela ezimpahleni zemishini ezicishe ziphindeke kabili lezo zensimbi ezingenasici ezivamile ze-austenitic kuyilapho zigcina ukudumba okuhle kakhulu nokuqina.

Izakhiwo Ezivelele Nezinzuzo

Ukumelana Nokugqwala Okuthuthukisiwe

I-S31803 iphumelela kakhulu ekumelaneni nezinhlobo ezahlukene zokugqwala, okuhlanganisa:

• I-Pitting and Crevice Corrosion:I-chromium ephezulu kanye nokuqukethwe kwayo kwe-molybdenum kuyivumela ukuthi isebenze ngokukhethekile ezindaweni ezine-chloride.

• I-Stress Corrosion Cracking:Isakhiwo se-duplex sinikeza ukumelana okwenyukayo ekuqhekekeni ngaphansi kwengcindezi, ngisho nalapho kuvezwe kumithombo yezindaba enolaka.

Amandla Emishini Ephakeme

• Amandla E-High Tensile:Imvamisa, amandla aqinile we-S31803 adlula ama-MPa angama-500, okwenza kube ekahle ezinhlelweni zokucindezela okuphezulu.

• Ukuqina Okuthuthukisiwe:I-microstructure elinganiselayo ayigcini nje ngokuqinisa amandla kodwa futhi iqinisekisa ukuqina nokuqina okuthembekile, okubalulekile ezindaweni zezimboni ezinamandla.

I-Weldability enhle kakhulu

Nakuba ukunakwa okukhethekile kudingekile ngesikhathi sokushisela ukuze kugwenywe ukuwohloka endaweni ethinteke ekushiseni, amasu okushisela afanelekile kanye nokwelashwa kwangemva kokushisela kungaqinisekisa amalunga aqinile, angenasici. Lokhu kwenza i-S31803 ibe yisinqumo esisebenzayo sakho kokubili umsebenzi wokwakha nowokulungisa

Izicelo zezimboni

I-S31803 duplex insimbi engagqwali ithola ukusetshenziswa okubanzi ezimbonini ezahlukahlukene ngenxa yenhlanganisela yayo elinganiselayo yamandla nokumelana nokugqwala. Izindawo zokufaka izicelo ezibalulekile zifaka:

• Isisetshenziswa Sokucubungula Amakhemikhali:Ilungele ama-reactors, amathangi okugcina, nezinhlelo zamapayipi lapho kudingeka ukumelana namakhemikhali anolaka.

• Imboni kawoyela negesi:Isetshenziswa kakhulu kumapayipi, ama-valve, kanye nokufakwa, ikakhulukazi ngaphansi kwezimo zokucindezela okuphezulu neziphezulu ze-chloride.

• Ubunjiniyela Basolwandle Nokwakhiwa Kwemikhumbi:Ukumelana kwayo nokugqwala kwamanzi anosawoti kuyenza ilungele izakhiwo zasogwini, i-marine hardware, nezinye izinhlelo zokusebenza zemikhumbi.

• Izinsiza Zokukhiqiza Amandla:Kuqashwe ezimbonini zikagesi nasezikhungweni zenuzi lapho ubuqotho besakhiwo nokusebenza kwesikhathi eside kubalulekile.

• Izingxenye Zokwakha Nezokwakha:Ukuphela kwayo okukhangayo nokuqina kwayo kuholele ekusetshenzisweni kwayo ezakhiweni zesimanje zokwakha kanye nezinhlelo zokusebenza zobuhle

   

Ukuhambisana Namazinga Omhlaba

I-S31803 duplex insimbi engagqwali ihambisana nezindinganiso ezimbalwa ezibalulekile zamazwe ngamazwe kanye kazwelonke, iqinisekisa ukwethembeka kanye nekhwalithi yayo. Ngokwesibonelo:

• I-ASME B16.11:Icacisa ukusetshenziswa kwayo ekwakhiweni kwe-socket weld kanye nokufakwa kwamapayipi anentambo.

• I-ASTM A240/A240M:Inikeza imihlahlandlela yamapuleti ensimbi engagqwali asetshenziswa ezinhlelweni ezihlukahlukene.

• I-EN 10088-2:Imininingwane ngezidingo zemikhiqizo yensimbi engagqwali eYurophu.

Lokhu kubambelela ezindinganisweni eziqinile kuqinisekisa ukuthi i-S31803 ihlangabezana nezidingo zezinhlelo zokusebenza ezibalulekile emhlabeni wonke.

Isiphetho

I-S31803 duplex insimbi engagqwali igqama njengento eguquguqukayo futhi eqinile elungele izimo zezimboni ezifunayo. Inhlanganisela yayo enhle kakhulu yamandla aphezulu, ukumelana nokugqwala okuphakeme, kanye nokushisela okuthembekile kuyenza ibe ukukhetha okuphezulu kuyo yonke imikhakha efana nokucutshungulwa kwamakhemikhali, uwoyela negesi, ubunjiniyela basolwandle, ukukhiqizwa kwamandla, nokwakha. Njengoba izimboni ziqhubeka nokuphusha imikhawulo yokusebenza nokuqina, i-S31803 isalokhu iyinto ethandwayo eletha inani elihlala njalo nokuphepha.

Ukuze uthole imininingwane eyengeziwe eningiliziwe yobuchwepheshe nezixazululo ezenziwe ngezifiso, ochwepheshe bemboni bakhuthazwa ukuthi bahlole imininingwane yedatha futhi bathinte abahlinzeki abathembekile.

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