Ikhoyili Yensimbi Engagqwali Ephindwe Kabili

Isithombe Esifakiwe Sekhoyili Yensimbi Engagqwali Ephindwe Kabili

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 ngokwesidingo sekhasimende

Ububanzi: 20mm – 2000mm, noma ngokwesidingo sekhasimende

Ubukhulu: 0.1mm -200mm

Ubuso: 2B 2D BA (Okugqamile Okune-Annealed) No1 No3 No4 No5 No8 8K HL (Umugqa Wezinwele)

Intengo Yesikhathi: CIF CFR FOB EXW

Isikhathi sokulethwa: Zingakapheli izinsuku eziyi-10-15 ngemuva kokuqinisekisa i-oda

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

Sithumelele i-imeyili I-WhatsApp Amy@jindalaisteel.com

Imininingwane Yomkhiqizo

Amathegi Omkhiqizo

Ukubuka konke kwe-Duplex Stainless Steel

Insimbi engagqwali ye-Super duplex ihlukaniswa nezinga elijwayelekile le-duplex ngenxa yezakhiwo zayo ezithuthukisiwe kakhulu zokumelana nokugqwala. Iyinto exutshwe kakhulu enezinga eliphezulu lezinto ezilwa nokugqwala njenge-chromium (Cr) kanye ne-molybdenum (Mo). Ibanga eliyinhloko lensimbi engagqwali ye-super duplex, i-S32750, liqukethe i-chromium engu-28.0%, i-molybdenum engu-3.5%, kanye ne-nickel engu-8.0% (Ni). Lezi zingxenye zinikeza ukumelana okungavamile kuma-ejenti agqwalayo, okuhlanganisa ama-acid, ama-chloride, kanye nezixazululo ze-caustic.

Ngokuvamile, izinsimbi ezingagqwali ze-super duplex zakhela phezu kwezinzuzo ezisunguliwe zama-duplex grades anokuqina kwamakhemikhali okuthuthukisiwe. Lokhu kwenza kube yizinga elihle kakhulu lokwakha izingxenye ezibalulekile emkhakheni we-petrochemical, njengezishintshi zokushisa, ama-boilers, kanye nemishini yemikhumbi yokucindezela.

Izakhiwo Zemishini Zensimbi Engagqwali E-Duplex

Amabanga	I-ASTM A789 Grade S32520 Ephathwe Ukushisa	I-ASTM A790 Grade S31803 Ephathwe Ukushisa	I-ASTM A790 Grade S32304 Ephathwe Ngokushisa	I-ASTM A815 Grade S32550 Ephathwe Ngokushisa	I-ASTM A815 Grade S32205 Ephathwe Ukushisa
I-Modulus Enwebekayo	200 GPa	200 GPa	200 GPa	200 GPa	200 GPa
Ukwelulwa	25%	25%	25%	15%	20%
Amandla Okudonsa	770 MPa	620 MPa	600 MPa	800 MPa	655 MPa
Ubulukhuni bukaBrinell	310	290	290	302	290
Amandla Okukhiqiza	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 Wokushisa Oqondile	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)
Ukuqhuba Okushisayo	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)

Ukuhlukaniswa kwe-Duplex Stainless Steel

l Uhlobo lokuqala luhlobo lwe-alloy oluphansi, olunezinga elimele i-UNS S32304 (23Cr-4Ni-0.1N). Insimbi ayinayo i-molybdenum, futhi inani le-PREN lingu-24-25. Ingasetshenziswa esikhundleni se-AISI304 noma i-316 ekumelaneni nokugqwala kokucindezeleka.

Uhlobo lwesibili lungolohlobo lwe-alloy oluphakathi nendawo, uhlobo olumele yi-UNS S31803 (22Cr-5Ni-3Mo-0.15N), inani le-PREN lingu-32-33, kanti ukumelana kwayo nokugqwala kuphakathi kwe-AISI 316L kanye ne-6% Mo+N insimbi engagqwali ye-austenitic.

l Uhlobo lwesithathu luwuhlobo lwe-alloy ephezulu, oluvame ukuqukethe u-25% Cr, i-molybdenum ne-nitrogen, kanti ezinye ziqukethe nethusi ne-tungsten. I-UNSS32550 ejwayelekile (25Cr-6Ni-3Mo-2Cu-0.2N), inani le-PREN lingu-38-39, kanti ukumelana nokugqwala kwalolu hlobo lwensimbi kuphakeme kunokwensimbi engagqwali engu-22% Cr duplex.

l Uhlobo lwesine yinsimbi engagqwali ephindwe kabili, equkethe i-molybdenum ephezulu ne-nitrogen. Izinga elijwayelekile yi-UNS S32750 (25Cr-7Ni-3.7Mo-0.3N), kanti ezinye ziqukethe i-tungsten nethusi. Inani le-PREN likhulu kuno-40, elingasetshenziswa ezimweni ezimaphakathi ezinzima. Inokumelana okuhle nokugqwala kanye nezakhiwo eziphelele zemishini, ezingaqhathaniswa nensimbi engagqwali e-super austenitic.

Izinzuzo ze-Duplex Stainless Steel

Njengoba kushiwo ngenhla, i-Duplex ivame ukusebenza kangcono kunezinhlobo zensimbi ngazinye ezitholakala ngaphakathi kwesakhiwo sayo esincane. Okungcono ukusho, inhlanganisela yezici ezinhle ezivela ezintweni ze-austenite ne-ferrite inikeza ikhambi elingcono kakhulu lezimo eziningi zokukhiqiza ezahlukene.

l Izakhiwo ezilwa nokugqwala – Umphumela we-molybdenum, i-chromium, ne-nitrogen ekumelaneni nokugqwala kwama-alloy e-Duplex mkhulu kakhulu. Ama-alloy amaningana e-Duplex angalingana futhi adlule ukusebenza kokulwa nokugqwala kwama-austenitic athandwayo kufaka phakathi u-304 no-316. Asebenza kahle kakhulu ekulweni nokugqwala okuqhekekile kanye nokugoba.

Ukuqhekeka kokugqwala kokucindezeleka – i-SSC ivela ngenxa yezici eziningana zomoya – izinga lokushisa kanye nomswakama yizona ezibonakala kakhulu. Ukucindezeleka kokuqina kumane kwandisa inkinga. Amazinga ajwayelekile e-austenitic asengozini enkulu yokuqhekeka kokugqwala kokucindezeleka – insimbi engagqwali ye-Duplex ayinjalo.

Ukuqina – I-Duplex iqinile kunezinsimbi ze-ferritic – ngisho noma amazinga okushisa aphansi kuyilapho empeleni ingalingani nokusebenza kwamazinga e-austenitic kulesi sici.

Amandla – Ama-alloy e-Duplex angaba namandla aphindwe kabili kunezakhiwo ze-austenitic neze-ferritic. Amandla aphezulu asho ukuthi insimbi ihlala iqinile ngisho noma ubukhulu bayo bunciphile okuyinto ebaluleke kakhulu ekunciphiseni amazinga esisindo.