Ikhoyili yeNtsimbi yeDuplex

Inkcazelo emfutshane:

IBanga: ASTM A182 F53, A240, A276, A479, A789, A790, A815, A928, A988 SAE J405njl.

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

Ubude: 2000mm, 2438mm, 3000mm, 5800mm, 6000mm, okanye njengemfuneko yomthengi

Ububanzi: 20mm - 2000mm, okanye njengemfuno yomthengi

Ukutyeba: 0.1mm -200mm

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

Ixesha leXabiso: CIF CFR FOB EXW

Ixesha lokuhambisa: Ngeentsuku ze-10-15 emva kokuqinisekisa umyalelo

Ixesha lokuhlawula: 30% TT njengediphozithi kunye nebhalansi kwikopi ye-B/Lokanye LC

Thumela i-imeyile kuthi WhatsApp Amy@jindalaisteel.com

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Isishwankathelo seDuplex Stainless Steel

Super duplex steel stainless yahlulwe kumabakala akwi-duplex asemgangathweni ngeempawu zayo eziphucuke kakhulu ezimelana nomhlwa. Yimathiriyeli edityaniswe kakhulu enemigxinano ephakamileyo yezinto ezichasayo ezifana nechromium (Cr) kunye nemolybdenum (Mo). Ibakala eliphambili le-super duplex stainless steel grade, i-S32750, libandakanya ukuya kuthi ga kwi-28.0% yechromium, i-3.5% ye-molybdenum, kunye ne-8.0% yenikeli (Ni). La malungu anika ukuxhathisa okukhethekileyo kwii-agent ezidliwayo, kuquka ii-asidi, iikloridi, kunye nezisombululo ze-caustic.

Ngokubanzi, iintsimbi ezizii-super duplex stainless zakha phezu kweenzuzo ezimiselweyo zamabakala aphindwe kabini kunye nozinzo olwandisiweyo lwekhemikhali. Oku kuyenza ibe libakala elifanelekileyo lokwenza izinto ezibalulekileyo kwicandelo lepetrochemical, ezinje ngokutshintshiselana kobushushu, iibhoyila, kunye nezixhobo zoxinzelelo lwenqanawa.

IiPropati zoomatshini beNtsimbi yeDuplex eNyintsi

Amabanga	I-ASTM A789 iBanga le-S32520 iNyango yoBubushushu	I-ASTM A790 iBanga le-S31803 iNyango yoBubushushu	I-ASTM A790 iBanga le-S32304 iNyango yoBubushushu	I-ASTM i-A815 iBanga le-S32550 iNyango yokushisa	I-ASTM A815 iBanga le-S32205 iNyango yoBubushushu
Imodyuli ye-elastic	200 GPA	200 GPA	200 GPA	200 GPA	200 GPA
Ukwandisa	25%	25%	25%	15%	20%
Tensile strength	770 MPa	620 MPa	600 MPa	800 MPa	655 MPa
Ukuqina kweBrinell	310	290	290	302	290
Unikeze Amandla	550 MPa	450 MPa	400 MPa	550 MPa	450 MPa
I-coefficient yokwandisa i-Thermal	1E-5 1/K	1E-5 1/K	1E-5 1/K	1E-5 1/K	1E-5 1/K
Umthamo wobushushu obuthe ngqo	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)

Ukuhlelwa kweDuplex Stainless Steel

l Uhlobo lokuqala luhlobo lwe-alloy ephantsi, kunye nebakala elimele i-UNS S32304 (23Cr-4Ni-0.1N). Insimbi ayinayo i-molybdenum, kwaye ixabiso le-PREN li-24-25. Ingasetyenziswa endaweni ye-AISI304 okanye i-316 kuxinzelelo lwe-corrosion resistance.

l Uhlobo lwesibini lolohlobo lwe-alloy ephakathi, uphawu olumeleyo ngu-UNS S31803 (22Cr-5Ni-3Mo-0.15N), ixabiso le-PREN li-32-33, kunye nokuchasana kwe-corrosion phakathi kwe-AISI 316L kunye ne-6% Mo + N austenitic yenziwe ngentsimbi eshayinayo.

l Uhlobo lwesithathu luhlobo lwe-alloy ephezulu, equka i-25% Cr, i-molybdenum kunye ne-nitrogen, kwaye ezinye ziqulethe i-copper kunye ne-tungsten. I-standard standard ye-UNSS32550 (25Cr-6Ni-3Mo-2Cu-0.2N), ixabiso le-PREN li-38-39, kwaye ukuxhathisa kwe-corrosion yolu hlobo lwensimbi luphezulu kune-22% ye-Cr duplex insimbi engenasici.

l Uhlobo lwesine luyi-super duplex steel stainless, equkethe i-molybdenum ephezulu kunye ne-nitrogen. Umgangatho oqhelekileyo ngu-UNS S32750 (25Cr-7Ni-3.7Mo-0.3N), kwaye ezinye ziqulethe i-tungsten kunye nobhedu. Ixabiso le-PREN likhulu kune-40, elinokuthi lisetyenziswe kwiimeko ezinzima eziphakathi. Inokumelana ne-corrosion elungileyo kunye nezixhobo ezibanzi zoomatshini, ezinokuthelekiswa ne-super austenitic steel stainless.

Izibonelelo zeDuplex Stainless Steel

Njengoko kukhankanyiwe ngasentla, iDuplex iqhele ukwenza ngcono kuneentlobo zentsimbi ezifumaneka kwimicrostructure yayo. Kungcono ukuthi, indibaniselwano yeempawu ezintle ezivela kwi-austenite kunye ne-ferrite element ibonelela ngesisombululo esingcono kwinani elikhulu leemeko ezahlukeneyo zemveliso.

l Iipropathi ezichasene nokuhlwa - Impembelelo ye-molybdenum, i-chromium, kunye ne-nitrogen ekuxhathiseni ukubola kwe-Duplex alloys inkulu kakhulu. Ii-alloys ezininzi ze-Duplex zinokuhambelana kwaye zigqithise ukusebenza kwe-anti-corrosive yamabanga athandwayo e-austenitic kuquka i-304 kunye ne-316.

l Ukuqhekeka koxinzelelo lwe-corrosion - i-SSC iza ngenxa yezizathu ezininzi zomoya - ubushushu kunye nokufuma zezona zibonakalayo. Uxinzelelo loxinzelelo longeza nje ingxaki. Amanqaku aqhelekileyo e-austenitic achaphazeleka kakhulu kuxinzelelo lwe-corrosion cracking - i-Duplex stainless steel ayikho.

l Ukuqina - I-Duplex yomelele kuneentsimbi ze-ferritic - nokuba kumaqondo obushushu aphantsi ngelixa ayihambelani ngokwenene nokusebenza kwamabakala e-austenitic kulo mba.

l Amandla - I-Duplex alloys ingaba ngamaxesha angama-2 anamandla kunezo zombini izakhiwo ze-austenitic kunye ne-ferritic. Amandla aphezulu athetha ukuba isinyithi sihlala siqinile nangona ubukhulu obuncitshisiweyo obubaluleke kakhulu ekunciphiseni amanqanaba obunzima.