Ikhoyili yentsimbi engagqwaliyo ephindwe kabini

Umfanekiso oBonisiweyo weDuplex Stainless Steel Coil

Inkcazo emfutshane:

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

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

Ubude: 2000mm, 2438mm, 3000mm, 5800mm, 6000mm, okanye ngokweemfuno zomthengi

Ububanzi: 20mm – 2000mm, okanye ngokweemfuno zomthengi

Ubukhulu: 0.1mm -200mm

Umphezulu: 2B 2D BA (Ene-Annealed Ekhanyayo) No1 No3 No4 No5 No8 8K HL (Umgca Weenwele)

Ixesha lexabiso: CIF CFR FOB EXW

Ixesha lokuhanjiswa: Kwiintsuku ezili-10-15 emva kokuqinisekisa iodolo

Ixesha lokuhlawula: 30% TT njengediphozithi kunye nebhalansi ngokuchasene nekopi ye-B/Lokanye i-LC

Thumela i-imeyile kuthi I-WhatsApp Amy@jindalaisteel.com

Iinkcukacha zeMveliso

Iithegi zeMveliso

Isishwankathelo seDuplex Stainless Steel

Intsimbi engagqwaliyo ye-Super duplex yahlulwe kwiindidi ze-duplex eziqhelekileyo ngenxa yeempawu zayo eziphucukileyo kakhulu zokuxhathisa ukugqwala. Yinto exutywe kakhulu enezinga eliphezulu lezinto ezichasene nokugqwala ezifana ne-chromium (Cr) kunye ne-molybdenum (Mo). Uhlobo oluphambili lwentsimbi engagqwaliyo ye-super duplex, i-S32750, luquka i-chromium engama-28.0%, i-molybdenum engama-3.5%, kunye ne-nickel engama-8.0% (Ni). Ezi zinto zinika ukumelana okugqwesileyo kwiiarhente zokugqwala, kubandakanya ii-asidi, ii-chloride, kunye nezisombululo ze-caustic.

Ngokubanzi, iintsimbi ezingenasici ze-super duplex zakha phezu kweenzuzo ezisele zikho zeeklasi ze-duplex ezinozinzo oluphuculweyo lweekhemikhali. Oku kwenza ukuba ibe ludidi olufanelekileyo lokwenza izinto ezibalulekileyo kwicandelo le-petrochemical, ezinje ngee-heat exchangers, ii-boilers, kunye nezixhobo ze-pressure vessels.

Iimpawu zoomatshini zeDuplex Stainless Steel

Amabanga	I-ASTM A789 Grade S32520 Iphathwe ngobushushu	I-ASTM A790 Grade S31803 Iphathwe ngobushushu	I-ASTM A790 Grade S32304 Iphathwe ngobushushu	I-ASTM A815 Grade S32550 Iphathwe ngobushushu	I-ASTM A815 Grade S32205 Iphathwe ngobushushu
Imodulus ye-Elastic	200 GPa	200 GPa	200 GPa	200 GPa	200 GPa
Ukwandiswa	25%	25%	25%	15%	20%
Tensile strength	770 MPa	I-620 MPa	I-600 MPa	I-800 MPa	655 MPa
Ubunzima bukaBrinell	310	290	290	302	290
Unikeze Amandla	550 MPa	450 MPa	400 MPa	550 MPa	450 MPa
I-coefficient yokwandiswa kobushushu	1E-5 1/K	1E-5 1/K	1E-5 1/K	1E-5 1/K	1E-5 1/K
Umthamo othile wobushushu	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 kweThermal	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)

Uhlu lweNsimbi Engagqwaliyo yeDuplex

Uhlobo lokuqala luhlobo lwe-alloy ephantsi, kunye nomgangatho omeleyo we-UNS S32304 (23Cr-4Ni-0.1N). Intsimbi ayinayo i-molybdenum, kwaye ixabiso le-PREN liyi-24-25. Ingasetyenziswa endaweni ye-AISI304 okanye i-316 ekuchaseni ukugqwala koxinzelelo.

Uhlobo lwesibini lolohlobo lwe-alloy ephakathi, uphawu olumeleyo yi-UNS S31803 (22Cr-5Ni-3Mo-0.15N), ixabiso le-PREN liyi-32-33, kwaye ukumelana kwayo nokugqwala kuphakathi kwe-AISI 316L kunye ne-6% ye-Mo+N yentsimbi engagqwali ye-austenitic.

Uhlobo lwesithathu lolohlobo lwe-alloy ephezulu, oluquka i-25% Cr, i-molybdenum kunye ne-nitrogen, kwaye ezinye ziqulathe i-copper kunye ne-tungsten. Ixabiso le-PREN elisemgangathweni le-UNSS32550 (25Cr-6Ni-3Mo-2Cu-0.2N) yi-38-39, kwaye ukumelana nokugqwala kolu hlobo lwentsimbi kuphezulu kune-22% Cr duplex stainless steel.

Uhlobo lwesine yintsimbi engagqwaliyo ephezulu, equlethe i-molybdenum ephezulu kunye ne-nitrogen. Uhlobo oluqhelekileyo yi-UNS S32750 (25Cr-7Ni-3.7Mo-0.3N), kwaye ezinye ziqulethe i-tungsten kunye ne-copper. Ixabiso le-PREN lingaphezulu kwama-40, elinokusetyenziswa kwiimeko eziphakathi ezinzima. Inokumelana okuhle nokugqwala kunye neempawu ezibanzi zoomatshini, ezinokuthelekiswa nentsimbi engagqwaliyo ephezulu.

Iingenelo zeDuplex Stainless Steel

Njengoko kutshiwo apha ngasentla, iDuplex idla ngokusebenza ngcono kuneentlobo zentsimbi ezifumaneka kwisakhiwo sayo esincinci. Okungcono kukutsho, indibaniselwano yeempawu ezintle ezivela kwi-austenite kunye nezinto ze-ferrite inika isisombululo esingcono kwiimeko ezininzi ezahlukeneyo zemveliso.

l Iimpawu zokungaboli – Isiphumo se-molybdenum, i-chromium, kunye ne-nitrogen ekuchaseni ukubola kwee-alloys ze-Duplex sikhulu kakhulu. Ii-alloys ezininzi ze-Duplex zinokulingana kwaye zidlule ukusebenza kokungaboli kwee-grades ezithandwayo ze-austenitic kuquka i-304 kunye ne-316. Zisebenza ngokukodwa ekuchaseni ukubola kunye nokuqhekeka kwemingxuma.

Ukuqhekeka koxinzelelo lokugqwala – i-SSC ivela ngenxa yezizathu ezininzi zomoya – ubushushu kunye nokufuma zezona zibonakalayo. Uxinzelelo lokuxinana longeza nje ingxaki. Amanqanaba aqhelekileyo e-austenitic achaphazeleka kakhulu kukuqhekeka koxinzelelo lokugqwala – intsimbi engatyiwayo ye-Duplex ayinjalo.

Ukuqina – I-Duplex iqinile kuneentsimbi ze-ferritic – nokuba kumaqondo obushushu aphantsi ngelixa ingahambelani nokusebenza kwemigangatho ye-austenitic kweli candelo.

Amandla – Ii-alloys ze-Duplex zinokuba namandla aphindwe kabini kunezakhiwo ze-austenitic kunye ne-ferritic. Amandla aphezulu athetha ukuba isinyithi sihlala siqinile nokuba ubukhulu baso bunciphile, nto leyo ebaluleke kakhulu ekunciphiseni amanqanaba obunzima.