Duplex Stainless Hlau Chev

Lus piav qhia luv luv:

QibASTM A182 F53, A240, A276, A479, A789, A790, A815, A928, A988 SAE J405lwm.

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

Ntev: 2000mm, 2438mm, 3000mm, 5800mm, 6000mm, los yog raws li tus neeg yuav tsum tau muaj

Dav: 20mm - 2000mm, los yog raws li tus neeg yuav tsum tau muaj

Thickness: 0.1mm -200mm

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

Nqe Them Nqi: CIF CFR FOB EXW

Lub sij hawm xa tuaj: Hauv 10-15 hnub tom qab lees paub qhov kev txiav txim

Lub sij hawm them nyiaj: 30% TT raws li tso nyiaj thiab qhov nyiaj tshuav tawm tsam daim B / Llos yog LC

Xa email rau peb WhatsApp Amy@jindalaisteel.com

Product Detail

Khoom cim npe

Txheej txheem cej luam ntawm Duplex Stainless Hlau

Super duplex stainless hlau yog txawv los ntawm cov qauv duplex qib los ntawm nws cov khoom zoo heev corrosion-resistant. Nws yog cov khoom siv alloyed uas muaj qhov siab siab ntawm cov khoom tiv thaiv corrosion xws li chromium (Cr) thiab molybdenum (Mo). Tus thawj super duplex stainless hlau qib, S32750, muaj ntau npaum li 28.0% chromium, 3.5% molybdenum, thiab 8.0% npib tsib xee (Ni). Cov khoom no qhia tshwj xeeb rau cov neeg ua haujlwm corrosive, suav nrog cov kua qaub, chlorides, thiab cov tshuaj caustic.

Feem ntau, super duplex stainless hlau tsim los ntawm kev tsim cov txiaj ntsig ntawm duplex qib nrog kev txhim kho tshuaj lom neeg ruaj khov. Qhov no ua rau nws yog qib zoo tshaj plaws rau kev tsim cov khoom tseem ceeb hauv kev lag luam petrochemical, xws li cov khoom siv hluav taws xob, cov boilers, thiab cov khoom siv lub nkoj siab.

Mechanical Properties ntawm Duplex Stainless Hlau

Qib	ASTM A789 Qib S32520 Thaum tshav kub kub kho	ASTM A790 Qib S31803 Thaum tshav kub kub kho	ASTM A790 Qib S32304 Thaum tshav kub kub kho	ASTM A815 Qib S32550 Thaum tshav kub kub kho	ASTM A815 Qib S32205 Thaum tshav kub kub kho
Elastic Modulus	200 GPa	200 GPa	200 GPa	200 GPa	200 GPa
Elongation	25%	25%	25%	15%	20%
Tensile zog	770 MPa ua	620 MPa rau	600 MPa	800 MPa	655 MPa ua
Brinell hardness	310	290	290	302	290
Yield zog	550 MPa	450 MPa	400 MPa	550 MPa	450 MPa
Thermal expansion coefficient	1E-5 1/K	1E-5 1/K	1E-5 1/K	1E-5 1/K	1E-5 1/K
Tshwj xeeb kub muaj peev xwm	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)

Classification ntawm Duplex Stainless Hlau

l Thawj hom yog hom tsis tshua muaj alloy, nrog rau qib sawv cev ntawm UNS S32304 (23Cr-4Ni-0.1N). Cov hlau tsis muaj molybdenum, thiab PREN tus nqi yog 24-25. Nws tuaj yeem siv los hloov AISI304 lossis 316 hauv kev ntxhov siab corrosion.

l Hom thib ob belongs rau hom alloy nruab nrab, tus neeg sawv cev hom yog UNS S31803 (22Cr-5Ni-3Mo-0.15N), PREN tus nqi yog 32-33, thiab nws cov corrosion kuj yog nruab nrab ntawm AISI 316L thiab 6% Mo + N austenitic stainless hlau.

l Hom thib peb yog hom alloy siab, uas feem ntau muaj 25% Cr, molybdenum thiab nitrogen, thiab qee qhov kuj muaj tooj liab thiab tungsten. Tus qauv qib UNSS32550 (25Cr-6Ni-3Mo-2Cu-0.2N), PREN tus nqi yog 38-39, thiab corrosion kuj ntawm hom hlau no siab dua li ntawm 22% Cr duplex stainless hlau.

l Hom plaub yog super duplex stainless hlau, uas muaj molybdenum siab thiab nitrogen. Tus qauv qib yog UNS S32750 (25Cr-7Ni-3.7Mo-0.3N), thiab qee qhov kuj muaj tungsten thiab tooj liab. Tus nqi PREN yog ntau dua 40, uas tuaj yeem siv rau qhov hnyav nruab nrab. Nws muaj qhov zoo corrosion kuj thiab txhua yam khoom siv, uas tuaj yeem sib piv nrog super austenitic stainless hlau.

Cov txiaj ntsig ntawm Duplex Stainless Hlau

Raws li tau hais los saum no, Duplex feem ntau ua tau zoo dua li cov hom hlau ib leeg pom hauv nws cov microstructure. Zoo dua hais tias, kev sib xyaw ua ke ntawm cov yam ntxwv zoo los ntawm cov ntsiab lus austenite thiab ferrite muab kev daws teeb meem zoo dua rau ntau qhov xwm txheej ntau lawm.

l Anti-corrosive zog - Cov nyhuv ntawm molybdenum, chromium, thiab nitrogen ntawm corrosion kuj ntawm Duplex alloys yog qhov loj heev. Ob peb Duplex alloys tuaj yeem sib tw thiab dhau los tiv thaiv kev ua haujlwm ntawm cov qib austenitic nrov nrog rau 304 thiab 316. Lawv tshwj xeeb tshaj yog tiv thaiv crevice thiab pitting corrosion.

l Stress corrosion cracking - SSC los ntawm ntau yam atmospheric yam - kub thiab av noo yog qhov tseeb tshaj plaws. Tensile kev ntxhov siab tsuas yog ntxiv rau qhov teeb meem. Cov qib austenitic ib txwm muaj qhov cuam tshuam rau kev ntxhov siab corrosion cracking - Duplex stainless hlau tsis yog.

l Toughness - Duplex yog tawv dua li cov hlau ferritic - txawm tias qhov kub qis dua thaum nws tsis ua raws li qhov ua tau zoo ntawm qib austenitic hauv qhov no.

l Lub zog - Duplex alloys tuaj yeem ncav cuag 2 npaug zog dua li ob qho tib si austenitic thiab ferritic qauv. Lub zog siab dua txhais tau tias cov hlau tseem ruaj khov txawm tias txo cov tuab uas yog qhov tseem ceeb tshwj xeeb rau kev txo qhov hnyav.