Duplex Stainless Steel Coil

Kufotokozera Kwachidule:

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

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

Utali: 2000mm, 2438mm, 3000mm, 5800mm, 6000mm, kapena ngati chofunika kasitomala

M'lifupi: 20mm - 2000mm, kapena ngati chofunika kasitomala

Ukulu: 0.1mm -200mm

Pamwamba: 2B 2D BA(Bright Annealed) No1 No3 No4 No5 No8 8K HL(Hair Line)

Nthawi Yamtengo: CIF CFR FOB EXW

Nthawi yobweretsera: Pasanathe masiku 10-15 mutatsimikizira dongosolo

Nthawi yolipira: 30% TT ngati gawo limodzi ndi ndalama zomwe zimatsutsana ndi B/Lkapena LC

Titumizireni imelo WhatsApp Amy@jindalaisteel.com

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Zolemba Zamalonda

Chidule cha Duplex Stainless Steel

Chitsulo chosapanga dzimbiri cha Super duplex chimasiyanitsidwa ndi magiredi wamba omwe ali ndi duplex chifukwa chakuwongolera kwake kosachita dzimbiri. Ndizinthu zosakanikirana kwambiri zomwe zimakhala ndi zinthu zotsutsana ndi dzimbiri monga chromium (Cr) ndi molybdenum (Mo). Gulu loyamba lachitsulo chosapanga dzimbiri la duplex, S32750, lili ndi 28.0% chromium, 3.5% molybdenum, ndi 8.0% nickel (Ni). Zigawozi zimapereka kukana kwapadera kwa zinthu zowononga, kuphatikiza ma asidi, ma chloride, ndi ma caustic solution.

Nthawi zambiri, zitsulo zosapanga dzimbiri zamtundu wa super duplex zimakhazikika pazabwino zokhazikika zamakalasi apawiri ndi kukhazikika kwamankhwala. Izi zimapangitsa kukhala gawo loyenera kupanga zinthu zofunika kwambiri pagawo la petrochemical, monga zosinthira kutentha, ma boilers, ndi zida zotengera mphamvu.

Katundu Wamakina a Duplex Stainless Steel

Maphunziro	ASTM A789 Kalasi S32520 Kutentha Kwambiri	ASTM A790 Kalasi S31803 Kutentha Kwambiri	ASTM A790 Kalasi S32304 Kutentha Kwambiri	ASTM A815 Kalasi S32550 Kutentha Kwambiri	ASTM A815 Kalasi S32205 Kutentha Kwambiri
Elastic Modulus	200 GPA	200 GPA	200 GPA	200 GPA	200 GPA
Elongation	25%	25%	25%	15 %	20 %
Kulimba kwamakokedwe	770 MPa	620 MPa	600 MPa	800 MPa	655 MPA
Brinell kuuma	310	290	290	302	290
Zokolola Mphamvu	550 MPa	450 MPa	400 MPa	550 MPa	450 MPa
Kuwonjeza kokwanira kwa kutentha	1E-5 1/K	1E-5 1/K	1E-5 1/K	1E-5 1/K	1E-5 1/K
Kuchuluka kwa kutentha kwapadera	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)
Thermal Conductivity	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 Duplex Stainless Steel

l Mtundu woyamba ndi mtundu wa alloy otsika, wokhala ndi kalasi yoyimira UNS S32304 (23Cr-4Ni-0.1N). Chitsulo chilibe molybdenum, ndipo mtengo wa PREN ndi 24-25. Itha kugwiritsidwa ntchito m'malo mwa AISI304 kapena 316 pakukana kuwononga dzimbiri.

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

l Mtundu wachitatu ndi wa aloyi wapamwamba kwambiri, omwe nthawi zambiri amakhala ndi 25% Cr, molybdenum ndi nitrogen, ndipo ena amakhala ndi mkuwa ndi tungsten. Gulu lokhazikika la UNSS32550 (25Cr-6Ni-3Mo-2Cu-0.2N), mtengo wa PREN ndi 38-39, ndipo kukana kwa dzimbiri kwa mtundu uwu wachitsulo ndi wapamwamba kuposa 22% Cr duplex zitsulo zosapanga dzimbiri.

l Mtundu wachinayi ndi chitsulo chosapanga dzimbiri cha duplex, chomwe chili ndi molybdenum ndi nayitrogeni. Gulu lokhazikika ndi UNS S32750 (25Cr-7Ni-3.7Mo-0.3N), ndipo zina zilinso ndi tungsten ndi mkuwa. Mtengo wa PREN ndi waukulu kuposa 40, womwe ungagwiritsidwe ntchito pazovuta zapakati. Ili ndi kukana bwino kwa dzimbiri komanso zida zonse zamakina, zomwe zitha kufananizidwa ndi chitsulo chosapanga dzimbiri cha austenitic.

Ubwino wa Duplex Stainless Steel

Monga tafotokozera pamwambapa, Duplex nthawi zambiri imachita bwino kuposa mitundu yachitsulo yomwe imapezeka mkati mwa microstructure yake. Ndibwino kuti, kuphatikiza kwazinthu zabwino zochokera ku austenite ndi ferrite kumapereka yankho labwinoko pamapangidwe osiyanasiyana osiyanasiyana.

l Anti-corrosive properties - Mphamvu ya molybdenum, chromium, ndi nayitrogeni pakukana dzimbiri kwa ma Duplex alloys ndiakulu. Ma aloyi angapo a Duplex amatha kufananiza ndikupitilira magwiridwe antchito a anti-corrosive a magiredi otchuka a austenitic kuphatikiza 304 ndi 316. Ndiwothandiza kwambiri polimbana ndi ming'alu ndi dzimbiri.

l Stress corrosion cracking - SSC imabwera chifukwa cha zinthu zingapo za mumlengalenga - kutentha ndi chinyezi kukhala zomwe zikuwonekera kwambiri. Kupsinjika maganizo kumangowonjezera vutoli. Magiredi wamba austenitic amatha kutengeka kwambiri ndi kupsinjika kwa dzimbiri - Chitsulo chosapanga dzimbiri cha Duplex sichoncho.

l Kulimba - Duplex ndi yolimba kuposa zitsulo za ferritic - ngakhale kutentha kocheperako pomwe sizikugwirizana ndi magwiridwe antchito a austenitic pagawo ili.

l Mphamvu - Ma aloyi a Duplex amatha kukhala amphamvu kuwirikiza kawiri kuposa ma austenitic ndi ferritic. Mphamvu zapamwamba zimatanthauza kuti chitsulo chimakhalabe cholimba ngakhale ndi makulidwe ochepa omwe ndi ofunika kwambiri kuti achepetse kulemera.