Ikhoyili Yensimbi Engagqwali ye-Duplex

Isithombe Esifakiwe Sekhoyili Yensimbi Engagqwali ye-Duplex

Incazelo emfushane:

Ibanga: ASTM A182 F53, A240, A276, A479, A789, A790, A815, A928, A988 SAE J405njll.

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

Ubude: 2000mm, 2438mm, 3000mm, 5800mm, 6000mm, noma njengemfuneko yekhasimende

Ububanzi: 20mm - 2000mm, noma njengemfuneko yekhasimende

Ubukhulu: 0.1mm -200mm

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

Isikhathi senani: CIF CFR FOB EXW

Isikhathi sokulethwa: Phakathi kwezinsuku eziyi-10-15 ngemuva kokuqinisekisa i-oda

Isikhathi sokukhokha: 30% TT njengediphozithi kanye nebhalansi eqhathaniswa nekhophi ye-B/Lnoma i-LC

Thumela i-imeyili kithi WhatsApp Amy@jindalaisteel.com

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Uhlolojikelele lwe-Duplex Stainless Steel

Insimbi engagqwali eyi-Super duplex ihlukaniswa kusukela kumamaki ajwayelekile ayi-duplex ngezici zayo ezithuthuke kakhulu ezimelana nokugqwala. Iwumsebenzi onengxubevange ephezulu enokugxila okuphakeme kwezinto ezilwa nokugqwala njenge-chromium (Cr) ne-molybdenum (Mo). Ibanga lokuqala le-super duplex steel stainless steel, i-S32750, lihlanganisa cishe u-28.0% we-chromium, u-3.5% we-molybdenum, kanye no-8.0% we-nickel (Ni). Lezi zingxenye zinikeza ukumelana okukhethekile kuma-ejenti ezinto ezibolayo, okuhlanganisa ama-asidi, ama-chloride, nezixazululo ze-caustic.

Ngokuvamile, ama-super duplex stainless steels akhela phezu kwezinzuzo ezimisiwe zamamaki ayi-duplex anokuqina okuthuthukisiwe kwamakhemikhali. Lokhu kuyenza ibe yibanga elifanele lokwakha izingxenye ezibalulekile emkhakheni we-petrochemical, njengezishintshisi zokushisa, ama-boilers, nemishini yomkhumbi wengcindezi.

Izakhiwo Zemishini Yensimbi Engagqwali ye-Duplex

Amabanga	I-ASTM A789 Ibanga S32520 Ilashwe Ngokushisa	I-ASTM A790 Ibanga S31803 Ilashwe Ngokushisa	I-ASTM A790 Ibanga S32304 Ilashwe Ngokushisa	I-ASTM A815 Ibanga S32550 Ilashwe Ngokushisa	I-ASTM A815 Ibanga S32205 Ilashwe Ngokushisa
I-Elastic Modulus	200 GPA	200 GPA	200 GPA	200 GPA	200 GPA
Ukwelula	25 %	25 %	25 %	15 %	20 %
Amandla Okuqina	770 MPa	620 MPa	600 MPa	800 MPa	655 MPa
Ukuqina kweBrinell	310	290	290	302	290
Isivuno Amandla	550 MPa	450 MPa	400 MPa	550 MPa	450 MPa
I-coefficient yokwandisa ukushisa	1E-5 1/K	1E-5 1/K	1E-5 1/K	1E-5 1/K	1E-5 1/K
Umthamo othize Wokushisa	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)
I-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)

Ukwahlukaniswa kweDuplex Stainless Steel

l Uhlobo lokuqala luhlobo lwe-alloy ephansi, nebanga elimele le-UNS S32304 (23Cr-4Ni-0.1N). Insimbi ayinayo i-molybdenum, futhi inani le-PREN liyi-24-25. Ingasetshenziswa esikhundleni se-AISI304 noma i-316 ekuphikiseni ukugqwala kwengcindezi.

l Uhlobo lwesibili olohlobo lwe-alloy ephakathi, uhlobo olumele i-UNS S31803 (22Cr-5Ni-3Mo-0.15N), inani le-PREN lingu-32-33, futhi ukumelana nokugqwala kwalo kuphakathi kwe-AISI 316L ne-6% Mo+N austenitic insimbi engagqwali.

l Uhlobo lwesithathu olohlobo lwe-alloy ephezulu, ngokuvamile oluqukethe u-25% Cr, i-molybdenum ne-nitrogen, kanti olunye luqukethe nethusi ne-tungsten. Ibanga elijwayelekile le-UNSS32550 (25Cr-6Ni-3Mo-2Cu-0.2N), inani le-PREN liyi-38-39, futhi ukumelana nokugqwala kwalolu hlobo lwensimbi kuphakeme kunalokho kwe-22% Cr duplex insimbi engagqwali.

l Uhlobo lwesine yi-super duplex steel stainless, equkethe i-molybdenum ephezulu ne-nitrogen. Ibanga elijwayelekile yi-UNS S32750 (25Cr-7Ni-3.7Mo-0.3N), kanti amanye aqukethe ne-tungsten nethusi. Inani le-PREN likhulu kuno-40, elingasetshenziswa ezimeni ezimaphakathi eziqinile. Inokumelana nokugqwala okuhle kanye nezakhiwo ezibanzi zemishini, ezingaqhathaniswa ne-super austenitic stainless steel.

Izinzuzo ze-Duplex Stainless Steel

Njengoba kushiwo ngenhla, i-Duplex ivamise ukusebenza kangcono kunezinhlobo zensimbi ngazinye ezitholakala ngaphakathi kwe-microstructure yayo. Okungcono ukuthi, inhlanganisela yezici ezinhle ezivela ku-austenite kanye nezakhi ze-ferrite inikeza isisombululo esingcono kakhulu senani elikhulu lezimo ezihlukene zokukhiqiza.

l Izakhiwo ezivimbela ukugqwala - Umphumela we-molybdenum, i-chromium, ne-nitrogen ekumelaneni nokugqwala kwe-Duplex alloys mkhulu kakhulu. Ama-alloys amaningana e-Duplex angakwazi ukufanisa futhi adlule ukusebenza okunqanda ukubola kwamabanga adumile we-austenitic ahlanganisa u-304 no-316. Asebenza kahle kakhulu ngokumelene nokuqhekeka nokugqwala komgodi.

l Ukuqhekeka kokugqwala kwengcindezi - I-SSC iza ngenxa yezinto ezimbalwa zomkhathi - izinga lokushisa kanye nomswakama yikhona okubonakala kakhulu. Ukucindezeleka okuqinile kumane kwengeze enkingeni. Amamaki ajwayelekile e-austenitic asengozini enkulu yokuqhekeka kokugqwala kwengcindezi - i-Duplex insimbi engagqwali ayikho.

l Ukuqina - I-Duplex iqinile kunezinsimbi ze-ferritic - ngisho namazinga okushisa aphansi kuyilapho empeleni ingahambisani nokusebenza kwamamaki e-austenitic kulesi sici.

l Amandla - Ama-alloys e-Duplex angaba namandla izikhathi ezi-2 kunezo zombili izakhiwo ze-austenitic kanye ne-ferritic. Amandla aphezulu asho ukuthi insimbi ihlala iqinile ngisho nogqinsi oluncishisiwe olubaluleke kakhulu ekunciphiseni amazinga esisindo.