Coil ea tšepe e sa hloekang ea Duplex

Duplex Stainless Steel Coil Featured Image

Tlhaloso e Khutšoanyane:

Kereiti: ASTM A182 F53, A240, A276, A479, A789, A790, A815, A928, A988 SAE J405etc.

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

Bolelele: 2000mm, 2438mm, 3000mm, 5800mm, 6000mm, kapa joalo ka tlhokahalo ea bareki

Bophara: 20mm - 2000mm, kapa joalo ka tlhokahalo ea bareki

Botenya: 0.1mm -200mm

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

Nako ea Theko: CIF CFR FOB EXW

Nako ea thomello: Nakong ea matsatsi a 10-15 kamora ho netefatsa taelo

Nako ea tefo: 30% TT e le depositi le chelete e setseng khahlanong le kopi ea B/Lkapa LC

Re romelle lengolo-tsoibila WhatsApp Amy@jindalaisteel.com

Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Kakaretso ea Duplex Stainless Steel

Super duplex stainless steel e khetholloa ho tsoa ho limaraka tse tloaelehileng tsa duplex ka thepa ea eona e ntlafetseng haholo e hananang le kutu. Ke thepa e nang le motsoako o matla o nang le likhakanyo tse phahameng tsa lintho tse thibelang ho bola joalo ka chromium (Cr) le molybdenum (Mo). Sehlopha sa mantlha sa super duplex tšepe e sa jeleng paate, S32750, se na le hoo e ka bang 28.0% chromium, 3.5% molybdenum, le 8.0% nickel (Ni). Likaroloana tsena li fana ka khanyetso e ikhethang ho lintho tse senyang, ho kenyeletsoa acid, li-chloride le litharollo tsa caustic.

Ka kakaretso, litšepe tsa super duplex stainless li haha holim'a melemo e teng ea limaraka tse habeli tse nang le botsitso bo ntlafalitsoeng ba lik'hemik'hale. Sena se etsa hore e be boemo bo loketseng bakeng sa ho etsa likarolo tsa bohlokoa lefapheng la petrochemical, joalo ka li-heaters tsa mocheso, li-boilers le lisebelisoa tsa likepe tsa khatello.

Thepa ea Mechini ea Duplex Stainless Steel

Mephato	ASTM A789 Grade S32520 Heat-Treased	ASTM A790 Kereiti S31803 Mocheso-Tloaelo	ASTM A790 Grade S32304 Heat-Treased	ASTM A815 Grade S32550 Heat-Treased	ASTM A815 Grade S32205 Heat-Treased
Elastic modulus	200 GPA	200 GPA	200 GPA	200 GPA	200 GPA
Elongation	25%	25%	25%	15 %	20%
Matla a tšepe	770 MPa	620 MPa	600 MPa	800 MPa	655 MPa
Ho thatafala ha Brinell	310	290	290	302	290
Kotulo Matla	550 MPa	450 MPa	400 MPa	550 MPa	450 MPa
Coefficient ea ho eketsa mocheso	1E-5 1/K	1E-5 1/K	1E-5 1/K	1E-5 1/K	1E-5 1/K
Bokhoni bo khethehileng ba Mocheso	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)

Sehlopha sa Duplex Stainless Steel

l Mofuta oa pele ke mofuta o tlaase oa alloy, o nang le sehlopha sa moemeli oa UNS S32304 (23Cr-4Ni-0.1N). Tšepe ha e na molybdenum, 'me boleng ba PREN ke 24-25. E ka sebelisoa sebakeng sa AISI304 kapa 316 khatellong ea khatello ea maikutlo.

l Mofuta oa bobeli ke oa mofuta oa alloy o mahareng, lebitso la moemeli ke UNS S31803 (22Cr-5Ni-3Mo-0.15N), boleng ba PREN ke 32-33, 'me ho hanyetsa ha kutu ho pakeng tsa AISI 316L le 6% Mo + N austenitic. ts'epe e sa beng le mabali.

l Mofuta oa boraro ke oa mofuta o phahameng oa alloy, oo ka kakaretso o nang le 25% Cr, molybdenum le nitrogen, 'me tse ling li na le koporo le tungsten. Sehlopha se tloaelehileng sa UNSS32550 (25Cr-6Ni-3Mo-2Cu-0.2N), boleng ba PREN ke 38-39, 'me khanyetso ea kutu ea mofuta ona oa tšepe e phahame ho feta ea 22% Cr duplex tšepe e sa hloekang.

l Mofuta oa bone ke tšepe e sa hloekang ea super duplex, e nang le molybdenum e phahameng le naetrojene. Sehlopha se tloaelehileng ke UNS S32750 (25Cr-7Ni-3.7Mo-0.3N), 'me tse ling li boetse li na le tungsten le koporo. Theko ea PREN e kholo ho feta 40, e ka sebelisoang maemong a thata a mahareng. E na le khanyetso e ntle ea kutu le thepa e felletseng ea mochini, e ka bapisoang le tšepe e sa hloekang ea super austenitic.

Melemo ea Duplex Stainless Steel

Joalokaha ho boletsoe ka holimo, Duplex hangata e sebetsa hantle ho feta mefuta ea tšepe e fumanehang ka har'a microstructure ea eona. Ho betere, motsoako oa litšobotsi tse ntle tse tsoang ho austenite le li-ferrite li fana ka tharollo e betere bakeng sa maemo a mangata a fapaneng a tlhahiso.

l Lintho tse thibelang ho bola - Phello ea molybdenum, chromium, le naetrojene ho hanyetsa kutu ea li-alloys tsa Duplex li kholo haholo. Li-alloys tse 'maloa tsa Duplex li ka bapisa le ho feta ts'ebetso e thibelang ho bola ea limaraka tse tsebahalang tsa austenitic ho kenyeletsoa 304 le 316. Li sebetsa ka ho khetheha khahlano le maphao le kutu.

l Stress corrosion cracking - SSC e tla ka lebaka la mabaka a 'maloa a sepakapaka - mocheso le mongobo ke tsona tse bonahalang haholo. Ho imeloa kelellong ho eketsa bothata. Limaraka tse tloaelehileng tsa austenitic li kotsing e kholo ea khatello ea maikutlo ea ho phatloha - tšepe ea Duplex ha e joalo.

l Toughness - Duplex e thata ho feta ferritic steels - leha e le maemong a tlase a mocheso athe ha e hlile ha e tsamaellane le ts'ebetso ea limaraka tsa austenitic ntlheng ena.

l Matla - Li-alloys tsa Duplex li ka ba matla ho isa ho makhetlo a 2 ho feta meaho ea austenitic le ea ferritic. Matla a phahameng a bolela hore tšepe e lula e tiile esita le ka botenya bo fokotsehileng bo bohlokoa haholo bakeng sa ho fokotsa boima ba 'mele.