Duplex Chitsulo Chosapanga Dzira

Chithunzi Chojambulidwa cha Duplex Stainless Steel Coil

Kufotokozera Kwachidule:

Giredi: ASTM A182 F53, A240, A276, A479, A789, A790, A815, A928, A988 SAE J405ndi zina zotero.

Standard: AISI, ASTM, DIN, EN, GB, ISO, JIS

Utali: 2000mm, 2438mm, 3000mm, 5800mm, 6000mm, kapena malinga ndi zomwe kasitomala akufuna

M'lifupi: 20mm - 2000mm, kapena malinga ndi zomwe kasitomala akufuna

Kunenepa: 0.1mm -200mm

Pamwamba: 2B 2D BA (Yowala Kwambiri) No1 No3 No4 No5 No8 8K HL (Mzere wa Tsitsi)

Mtengo: CIF CFR FOB EXW

Nthawi yotumizira: Pasanathe masiku 10-15 mutatsimikizira oda

Nthawi yolipira: 30% TT monga gawo lolipirira ndi ndalama zotsala motsutsana ndi kopi ya B/Lkapena LC

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Chidule cha Duplex Stainless Steel

Chitsulo chosapanga dzimbiri cha Super duplex chimasiyanitsidwa ndi magiredi wamba a duplex chifukwa cha mphamvu zake zopambana kwambiri zolimbana ndi dzimbiri. Ndi chinthu chopangidwa ndi alloy kwambiri chokhala ndi kuchuluka kwakukulu kwa zinthu zotsutsana ndi dzimbiri monga chromium (Cr) ndi molybdenum (Mo). Gulu lalikulu la chitsulo chosapanga dzimbiri cha Super duplex, S32750, limaphatikizapo 28.0% chromium, 3.5% molybdenum, ndi 8.0% nickel (Ni). Zigawozi zimapangitsa kuti zinthu zowononga zisamayende bwino, kuphatikizapo ma acid, ma chloride, ndi ma caustic solutions.

Kawirikawiri, zitsulo zosapanga dzimbiri za super duplex zimakhazikika pa ubwino wodziwika bwino wa mitundu iwiri yokhala ndi kukhazikika kwa mankhwala. Izi zimapangitsa kuti ikhale mtundu woyenera kwambiri popanga zinthu zofunika kwambiri mu gawo la petrochemical, monga zosinthira kutentha, ma boiler, ndi zida zoyendera mpweya.

Kapangidwe ka Makina a Chitsulo Chosapanga Dzimbiri cha Duplex

Magiredi	ASTM A789 Giredi S32520 Yotenthedwa ndi Kutentha	ASTM A790 Giredi S31803 Yotenthedwa ndi Kutentha	ASTM A790 Giredi S32304 Yotenthedwa ndi Kutentha	ASTM A815 Giredi S32550 Yotenthedwa ndi Kutentha	ASTM A815 Giredi S32205 Yotenthedwa ndi Kutentha
Modulus Yotanuka	200 GPa	200 GPa	200 GPa	200 GPa	200 GPa
Kutalikitsa	25%	25%	25%	15%	20%
Kulimba kwamakokedwe	770 MPa	620 MPa	600 MPa	800 MPa	655 MPa
Kuuma kwa Brinell	310	290	290	302	290
Mphamvu Yopereka	550 MPa	450 MPa	400 MPa	550 MPa	450 MPa
Kuchuluka kwa kutentha	1E-5 1/K	1E-5 1/K	1E-5 1/K	1E-5 1/K	1E-5 1/K
Mphamvu yeniyeni ya kutentha	440 – 502 J/(kg·K)	440 – 502 J/(kg·K)	440 – 502 J/(kg·K)	440 – 502 J/(kg·K)	440 – 502 J/(kg·K)
Kutentha kwa Matenthedwe	13 – 30 W/(m·K)	13 – 30 W/(m·K)	13 – 30 W/(m·K)	13 – 30 W/(m·K)	13 – 30 W/(m·K)

Gulu la Zitsulo Zosapanga Dzimbiri za Duplex

l Mtundu woyamba ndi mtundu wa aloyi wotsika, wokhala ndi kalasi yoyimira ya UNS S32304 (23Cr-4Ni-0.1N). Chitsulocho chilibe molybdenum, ndipo mtengo wa PREN ndi 24-25. Chingagwiritsidwe ntchito m'malo mwa AISI304 kapena 316 polimbana ndi dzimbiri.

Mtundu wachiwiri ndi wa mtundu wa aloyi wapakatikati, mtundu woyimira ndi UNS S31803 (22Cr-5Ni-3Mo-0.15N), mtengo wa PREN ndi 32-33, ndipo kukana kwake dzimbiri kuli pakati pa AISI 316L ndi 6% Mo+N austenitic stainless steel.

Mtundu wachitatu ndi wa mtundu wa aloyi wambiri, womwe nthawi zambiri umakhala ndi 25% Cr, molybdenum ndi nayitrogeni, ndipo zina zimakhalanso ndi mkuwa ndi tungsten. Mtundu wamba wa UNSS32550 (25Cr-6Ni-3Mo-2Cu-0.2N), PREN ndi 38-39, ndipo kukana dzimbiri kwa chitsulo chamtunduwu ndi kwakukulu kuposa 22% Cr duplex stainless steel.

Mtundu wachinayi ndi chitsulo chosapanga dzimbiri cha super duplex, chomwe chili ndi molybdenum ndi nayitrogeni wambiri. Mtundu wamba ndi UNS S32750 (25Cr-7Ni-3.7Mo-0.3N), ndipo zina zilinso ndi tungsten ndi mkuwa. Mtengo wa PREN ndi woposa 40, womwe ungagwiritsidwe ntchito pamikhalidwe yovuta yapakati. Uli ndi kukana dzimbiri bwino komanso mphamvu zambiri zamakanika, zomwe zingafanane ndi chitsulo chosapanga dzimbiri cha super austenitic.

Ubwino wa Duplex Stainless Steel

Monga tafotokozera pamwambapa, Duplex nthawi zambiri imagwira ntchito bwino kuposa mitundu yachitsulo yomwe imapezeka mkati mwa kapangidwe kake kakang'ono. Kunena zoona, kuphatikiza kwa makhalidwe abwino ochokera ku austenite ndi ferrite kumapereka yankho labwino kwambiri pazinthu zosiyanasiyana zopangira.

l Mphamvu zoletsa kuwononga – Mphamvu ya molybdenum, chromium, ndi nayitrogeni pa kukana dzimbiri kwa ma alloy a Duplex ndi yayikulu kwambiri. Ma alloy angapo a Duplex amatha kufanana ndikupitilira magwiridwe antchito oletsa kuwononga a magiredi otchuka a austenitic kuphatikiza 304 ndi 316. Ndi othandiza kwambiri polimbana ndi dzimbiri la mng'alu ndi dzenje.

Kusweka kwa dzimbiri la stress – SSC imabwera chifukwa cha zinthu zingapo zomwe zimachitika mumlengalenga – kutentha ndi chinyezi ndizo zomwe zimaonekera kwambiri. Kusweka kwa stress kumawonjezera vutoli. Ma grade abwinobwino a austenitic amatha kusweka mosavuta ndi dzimbiri la stress – chitsulo chosapanga dzimbiri cha Duplex sichili choncho.

Kulimba - Duplex ndi yolimba kuposa zitsulo za ferritic - ngakhale kutentha kotsika pomwe sizikugwirizana ndi magwiridwe antchito a austenitic grades pankhaniyi.

Mphamvu - Ma alloy awiri amatha kukhala amphamvu kuwirikiza kawiri kuposa mapangidwe a austenitic ndi ferritic. Mphamvu zambiri zimatanthauza kuti chitsulo chimakhalabe cholimba ngakhale chitakhala chocheperako chomwe ndi chofunikira kwambiri pochepetsa kulemera.