Duplex Bakin Karfe Coil

Takaitaccen Bayani:

DarajaASTM A182 F53, A240, A276, A479, A789, A790, A815, A928, A988 SAE J405da dai sauransu.

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

Length: 2000mm, 2438mm, 3000mm, 5800mm, 6000mm, ko matsayin abokin ciniki bukata

Nisa: 20mm - 2000mm, ko a matsayin abokin ciniki bukata

Kauri: 0.1mm -200mm

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

Lokacin Farashin: CIF CFR FOB EXW

Lokacin bayarwa: A cikin kwanaki 10-15 bayan tabbatar da oda

Lokacin biyan kuɗi: 30% TT azaman ajiya da ma'auni akan kwafin B / Lya da LC

Aika mana imel WhatsApp Amy@jindalaisteel.com

Cikakken Bayani

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Bayanin Duplex Bakin Karfe

Super duplex bakin karfe an bambanta da daidaitattun maki duplex ta hanyar ingantattun kaddarorin sa masu jure lalata. Abu ne mai haɗaka sosai tare da haɓakar ƙima na abubuwa masu lalata kamar chromium (Cr) da molybdenum (Mo). Babban matakin farko na bakin karfe, S32750, ya ƙunshi kusan 28.0% chromium, 3.5% molybdenum, da 8.0% nickel (Ni). Waɗannan abubuwan haɗin gwiwar suna ba da juriya na musamman ga abubuwan lalata, gami da acid, chlorides, da maganin caustic.

Gabaɗaya, super duplex bakin karfe suna ginawa akan ingantattun fa'idodin makin duplex tare da ingantaccen kwanciyar hankali na sinadarai. Wannan ya sa ya zama kyakkyawan matsayi don ƙirƙira mahimman abubuwan haɓakawa a cikin ɓangaren petrochemical, kamar masu musayar zafi, tukunyar jirgi, da kayan aikin jirgin ruwa.

Abubuwan Injiniyan Bakin Karfe Duplex

Maki	ASTM A789 Grade S32520 Mai zafi	ASTM A790 Grade S31803 Mai zafi	ASTM A790 Grade S32304 Mai zafi	ASTM A815 Grade S32550 Mai zafi	ASTM A815 Grade S32205 Mai zafi
Na roba Modulus	200 GPA	200 GPA	200 GPA	200 GPA	200 GPA
Tsawaitawa	25%	25%	25%	15%	20%
Ƙarfin Ƙarfi	770 MPa	620 MPa	600 MPa	800 MPa	655 MPa
Brinell taurin	310	290	290	302	290
Ƙarfin Haɓaka	550 MPa	450 MPa	400 MPa	550 MPa	450 MPa
Ƙididdigar faɗaɗawar thermal	1E-5 1/K	1E-5 1/K	1E-5 1/K	1E-5 1/K	1E-5 1/K
Ƙaƙwalwar Ƙarfin zafi	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)

Rarraba Bakin Karfe Duplex

l Nau'in farko shine nau'in alloy mai ƙarancin ƙarfi, tare da ƙimar wakilci na UNS S32304 (23Cr-4Ni-0.1N). Karfe ba ya ƙunshi molybdenum, kuma ƙimar PREN shine 24-25. Ana iya amfani dashi maimakon AISI304 ko 316 a cikin juriya na lalata.

l Nau'in na biyu na nau'in alloy na matsakaici ne, alamar wakilcin UNS S31803 (22Cr-5Ni-3Mo-0.15N), ƙimar PREN shine 32-33, kuma juriya na lalata yana tsakanin AISI 316L da 6% Mo + N austenitic. bakin karfe.

l Nau'i na uku na nau'in alloy ne, wanda gabaɗaya ya ƙunshi 25% Cr, molybdenum da nitrogen, wasu kuma suna ɗauke da jan ƙarfe da tungsten. Ma'auni UNSS32550 (25Cr-6Ni-3Mo-2Cu-0.2N), ƙimar PREN ita ce 38-39, kuma juriya na lalata irin wannan ƙarfe ya fi na 22% Cr duplex bakin karfe.

l Nau'i na hudu shine super duplex bakin karfe, wanda ya ƙunshi babban molybdenum da nitrogen. Matsakaicin darajar UNS S32750 (25Cr-7Ni-3.7Mo-0.3N), wasu kuma sun ƙunshi tungsten da jan ƙarfe. Ƙimar PREN ta fi 40, wanda za a iya amfani da shi zuwa matsananciyar yanayi. Yana da kyawawan juriya na lalata da ingantattun kaddarorin inji, wanda zai iya zama daidai da super austenitic bakin karfe.

Amfanin Duplex Bakin Karfe

Kamar yadda aka fada a sama, Duplex yawanci yana aiki mafi kyau fiye da nau'ikan ƙarfe ɗaya da aka samu a cikin ƙananan tsarin sa. Mafi kyau ya ce, haɗuwa da halaye masu kyau da ke fitowa daga abubuwan austenite da ferrite suna samar da mafi kyawun bayani ga ɗimbin yanayi daban-daban na samarwa.

l Anti-lalata Properties - Sakamakon molybdenum, chromium, da nitrogen a kan juriya na lalata na Duplex alloys yana da yawa. Duplex alloys da yawa na iya daidaitawa da wuce aikin anti-lalata na mashahuri austenitic maki ciki har da 304 da 316. Suna da tasiri musamman a kan crevice da pitting lalata.

L Stress lalata fatattaka - SSC ya zo a sakamakon da yawa yanayi dalilai - zazzabi da zafi kasancewa mafi bayyananne. Danniya na jujjuyawa yana ƙara matsala kawai. Makin austenitic na yau da kullun suna da saurin kamuwa da lalata lalata - Duplex bakin karfe ba.

l Tauri - Duplex ya fi ƙarfi fiye da ƙarfe na ƙarfe - ko da a ƙananan yanayin zafi yayin da bai dace da aikin austenitic maki a wannan yanayin ba.

l Ƙarfi - Duplex alloys na iya zama har zuwa sau 2 da ƙarfi fiye da tsarin austenitic da ferritic. Ƙarfi mafi girma yana nufin cewa ƙarfe ya kasance mai ƙarfi ko da tare da rage kauri wanda yake da mahimmanci musamman don rage matakan nauyi.