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QN1803 Stainless Steel: High-Performance Alternative to 304
2025-06-12
Mwachidule: QN1803 (yomwe imatchedwanso 304D kapena giredi 1.4376) ndi chitsulo chosapanga dzimbiri cha austenitic chomwe changopangidwa kumene kuchokera ku Tsingshan/Qingtuo. Amapangidwa ndi nayitrogeni wochuluka, chromium wochuluka ndi mkuwa, komanso kuchepetsedwa kwa nickel kuti apereke mphamvu zapamwamba komanso kukana dzimbiri pamtengo wotsikakuposa muyezo 304. QN1803 ikufotokozedwa ngati “njira yotsika mtengo kuposa yachikhalidwe 304 Chitsulo chosapanga dzimbiri,” kupereka"Kulimbana ndi dzimbiri, mphamvu zambiri, komanso kukana kuvala bwino". Kapangidwe kake ka nayitrogeni wambiri, wa nickel wotsika amatsitsa mtengo wa alloy popanda kusokoneza magwiridwe antchito. Aloyiyo ndiyosavuta kukonza ndikuwotcherera, ndipo imakwaniritsa miyezo yapadziko lonse lapansi ndi ziphaso zamagulu azakudya, ndikupangitsa kuti ikhale yoyenera kutumiza kunja kwa dziko lonse lapansi.
High-Nayitrogeni, Nickel-Saving Alloy Alloy
Chemistry ya QN1803 idapangidwa kuti igwire ntchito komanso yotsika mtengo. Lili ndi Cr 17.5-19.5%, Pakati pa 1.0-3.5%,ndi N 0.20–0.30%, ndi Osati ngakhale 2.0-3.5% yokha (kuyerekeza ndi ~ 8% mu 304). Mosiyana ndi izi, zitsulo za 304 ndi ~ 18% Cr, 8% Ni, ~ 0.045% N, ndi ~ 0.1% Cu. Nayitrogeni wowonjezera ndi chromium amalimbitsa mphamvu komanso kukana kutsekereza, pomwe mkuwa wowonjezera umapatsa antibacterial katundu komanso mawonekedwe abwino. Kutsika kwa nickel (ndi manganese ochepera) kumachepetsa kwambiri mtengo wazinthu. Mwachidule, QN1803's High-Ni-saving formula amatulutsa chitsulo chosapanga dzimbiri chokhala ndi dzimbiri ndi mawonekedwe amakina ofanana kapena abwinopo kuposa 304 pamtengo wotsika wa aloyi.
Mphamvu zamakina ndi Kukhalitsa
Zithunzi za QN1803 wapamwamba makina katundu poyerekeza ndi 304. Mfundo zodziwika bwino za pepala lozizira (0.5 mm) ndi: mphamvu zowonongeka ~ 747 MPa vs 670 MPa kwa 304, ndi zokolola mphamvu ~ 432 MPa vs 290 MPa. Kuuma ndikokweranso (HV 230 vs 165). Elongation imakhalabe yokwera (≈52% vs 59% ya 304) ngakhale pali mphamvu. Mwachidziwikire, zokolola za QN1803 zili pafupi 1.3 × za 304 ndikusunga ductility (elongation ≥45%). Zotsatira zake zimakhala zolimba, zotopa kwambiri komanso zosavala. Imawotcherera ndi kupanga bwino: mphamvu ya post-weld imafanana kapena kupitilira 304, ndipo kupanga kuzizira sikuchepetsa kukana kwa dzimbiri.
Zambiri Zamakina:
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Kulimba kwamakokedwe: ~ 747 MPa (vs 670 MPa ya 304).
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Mphamvu Zokolola: ~ 432 MPa (vs 290 MPa).
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Elongation: ~ 52% (vs 58.5%).
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Kulimba: HV230 (vs HV165).
Superior Corrosion Resistance
Kutulutsa kwa alloy kwa Cr ndi N kuchita bwino kwa dzimbiri. QN1803's Pitting Resistance Equivance Number (PREN) imaposa 19, yofananira kapena kupitilira kukana kwa 304 (PREN≈18.5). M'mayeso okhazikika, QN1803 imawonetsanso bwino kukana kwa dzimbiri pambuyo popanga kuzizira (kupindika, kupondaponda, etc.) poyerekeza ndi 304. Zimatsutsana kwambiri ndi ma acid acid (HCl, H₂SO₄) ndi malo okhala ndi chloride. Mwachitsanzo, pakuyezetsa kusalowererapo mchere (NSS) pamiyezo ya GB/T, QN1803 sinawonetse dzimbiri lowoneka pambuyo pa maola 1000. M'mayeso omwewo 304 amatha kuyamba kuwononga. Kupirira kwapamwamba kwa kupopera mchereku kumatsimikizira kudalirika kwa QN1803 panja kapena panyanja.
Deta ya Corrosion:
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MTANDA: >19.0 (304 ili ndi ≈18.5).
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Kulimbana ndi Kupopera Mchere: Palibe dzimbiri pambuyo pa mayeso a 1000 h NSS.
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Acid/Chloride: Kutsimikiziridwa bwino yunifolomu ndi kukana pitting kuposa 304, ngakhale pambuyo kupanga
Chitetezo Chakudya Chakudya ndi Katundu wa Antibacterial
QN1803 ndiyotetezedwa kwathunthu ku chakudya ndipo imaperekanso antibacterial effect. Kuyera kwambiri komanso kutsika kwazitsulo zolemera kwambiri kumakwaniritsa miyezo ya EU, LFGB yaku Germany ndi JIS pazakudya zakukhitchini ndi zida zazakudya. Kuphatikizika kwa mkuwa (~ 1-3.5%) kumapereka mphamvu yolimbana ndi tizilombo toyambitsa matenda: mayesero amasonyeza> 99.9% kutsekereza mlingo mkati mwa maola 4 (muyezo waJIS). Kuphatikizidwa ndi kukana kwambiri kwa dzimbiri muzakudya za acids / mchere, QN1803 ndiyabwino kwa khitchini, zophikira, masinki ndi ngalande pansi. Mwachitsanzo, QN1803 imadutsa mayeso osamukira kudziko lonse pazitsulo zolemera ndipo imaposa 304 mu kukana kwa mchere wa acid. M'matangi amadzi ndi machitidwe aukhondo, mkuwa umathandizanso kulepheretsa kukula kwa mabakiteriya, kupangitsa madzi osungidwa kukhala athanzi.
Chithunzi: Chophikira chachitsulo chosapanga dzimbiri. Kulimbana ndi dzimbiri kwa QN1803 komanso zomwe zili ndi mkuwa wa aloyi zimakwaniritsa miyezo yolimba ya chakudya komanso antibacterial (JIS/EU/LFGB) ya khitchini ndi zinthu zaukhondo.
Zolemba ndi Zogwiritsa Ntchito
Kuphatikizika kwa mphamvu kwa QN1803, kukana dzimbiri komanso kukwera mtengo kumapangitsa kuti ikhale yosunthika m'mafakitale ambiri. Ndi kale ntchito:
Zomanga & Zomangamanga: Denga, mapanelo a khoma, makoma a nsalu ndi zokongoletsera zokongoletsera zimapindula ndi mphamvu ya QN1803 yapamwamba komanso kukana kwa nyengo. Mphamvu zokolola zambiri (kuposa magiredi achitsulo) zimalola mapanelo opepuka.
Mapaipi ndi Zomangamanga: Mapaipi otayira ndi ozimitsa moto, mapaipi, mipope, mipope ndi zimbudzi zimapeza moyo wautali chifukwa cha chitetezo chachitsulo ku dzimbiri ndi dzimbiri la asidi. M'mapaipi a gasi kapena nsanja za desulfurization, QN1803 imakana dzimbiri yokhala ndi sulfure kuposa 304.
Kusungirako Madzi & Kulima: Matanki, malo osungiramo madzi ndi nyumba zaulimi zam'madzi zimagwiritsa ntchito QN1803 chifukwa cha mkuwa wake wothira mabakiteriya komanso kulimba kwa madzi amchere. Mphamvu zake zimathandiziranso katundu wolemetsa pazida zoweta.
Khitchini ndi Zida: Ma Countertops, masinki, zophikira, ndi makina azakudya amakonda QN1803 chifukwa chachitetezo chake chamagulu. Imapirira ma asidi ofooka komanso malo akukhitchini amchere kuposa 304, ndipo imakwaniritsa miyezo yaukhondo yapadziko lonse lapansi.
Consumer & Commercial Products: Zitseko za Hardware, ma elevator, ndi mahinji okongoletsa kapena njanji zimatengera kulimba kwa QN1803 komanso kukana kuvala. Poyerekeza ndi 304 pazitseko / zipata, QN1803 imasunga kumaliza ndi mawonekedwe pansi pa mphamvu ndi katundu wamphepo. Imawotcherera ndi kupukuta bwino pazida zamagetsi ndi zotengera zoyendera.
Chithunzi: Chipata chachitsulo chosapanga dzimbiri. QN1803 imapereka kuuma kwakukulu ndi mphamvu kuposa 304 zamakina omanga ndi zida zamalonda, pomwe ikupereka kukana kwa dzimbiri kwapamwamba m'malo akunja.
Ubwino Pa 304 Stainless Steel
Poyerekeza ndi ochiritsira 304, QN1803 amapereka zowoneka bwino m'malo ofunikira:
Katundu Wamakina: Monga taonera, mphamvu zake zolimba komanso zokolola zimakhala pafupifupi 15-30% kuposa 304's. Moyo wouma ndi kutopa umasinthidwanso, kulola zigawo zoonda kapena zopepuka kuti zigwire ntchito yomweyo.
Kachitidwe ka Corrosion: QN1803 imafanana kapena kupitilira kukana kwa dzimbiri kwa 304 pamayeso onse. PREN yake yapamwamba komanso kukana kwa sulfuric / chloride kumatanthauza kuti imaposa 304 makamaka muzochitika zaukali kapena zopangidwa. Imalimbana ndi dzimbiri ndi ming'alu ngakhale m'khitchini ndi m'madzi am'madzi, ndikupangitsa kuti ikhale yolimba kwambiri pakugwiritsa ntchito panja ndi chakudya.
Mtengo Mwachangu: Chifukwa cha nickel yotsika ndi nayitrogeni/mkuwa wokwera, QN1803 imatha mtengo wofikira ~ 20% kuchepera 304 pa toni (kutengera msika) pomwe ikupereka magwiridwe antchito ofanana kapena abwinoko. Ofufuza amanena kuti "zomwe 304 ingachite, 304D ingathenso kuchita, ndipo mtengo wake ndi wotsika mtengo". Mtengo wotsika wa alloy ndi moyo wautali wazinthu zimamasulira kutsika mtengo waumwini.
Chitetezo Chakudya/Thanzi: QN1803 ndi yovomerezeka kugwiritsa ntchito chakudya. Mapangidwe ake opangidwa ndi mkuwa, oyeretsedwa kwambiri amapambana mayeso okhwima a antibacterial ndi kusamuka (EU, JIS, LFGB), omwe magiredi 304 sangathe. Izi zimapangitsa kuti zikhale zokongola kwambiri kukhitchini, ntchito zaukhondo ndi madzi zomwe zimafuna chitetezo chovomerezeka.
Powombetsa mkota, QN1803/304D Chitsulo chosapanga dzimbiri chimapatsa mainjiniya ndi akatswiri ogula zinthu zogwira ntchito kwambiri, zotetezedwa ku chakudya, komanso zotsika mtengo. Kuphatikiza kwake high nitrogen alloying, high Cr/Cu, medium Ni imapatsa mphamvu zamakina ndi kukana kwa dzimbiri zomwe zimakumana kapena kupitilira 304's, ndikusunga ndalama za faifi tambala. The aloyi wa kutsimikiziridwa kudalirika mu mayesero mayiko (NSS 1000h, JIS antibacterial, etc.) ndi yotakata ntchito osiyanasiyana kupanga njira njira ina zinthu zamakono zosapanga dzimbiri.