Kev Piav Txog Khoom (Product Overview)
Peb cov Super Duplex Steel Flanges ua haujlwm zoo tshaj qhov uas cov steel zoo tib yam ua tsis tau. Nrog cov qauv xws li 25% chromium, 7% nickel, thiab 4% molybdenum (per ASTM A182/A479), cov flanges no ua tiav tensile strengths ntawm 750-895 MPa - ze li ob npaug ntawm 316L stainless steel.
Cov Ntsiab Lus Tseem Ceeb (Key Details)
Qhov tseem ceeb? Qhov balanced ferritic-austenitic microstructure muab 42+ PREN (Pitting Resistance Equivalent), uas tau raug sim tias tuaj yeem tiv thaiv chloride ntau tshaj 100,000 ppm hauv ASTM G48 sim. Rau cov chaw offshore lossis chemical, qhov no txhais tau tias lub neej ua haujlwm 10+ xyoo uas cov flanges zoo tib yam tawg hauv 2-3 xyoo. Txhua batch suav nrog third-party mill test reports uas lees paub corrosion resistance thiab mechanical properties.
Hauv kev sim corrosion (per ASTM G48 Method C), lawv tuav tau 6% ferric chloride ntawm 50°C rau 300+ teev yam tsis muaj kev puas. Yog vim li cas lawv thiaj yog qhov kev xaiv zoo rau offshore platforms, desalination plants, thiab chemical reactors. Rau cov neeg muag khoom loj, qhov no txhais tau tias koj tuaj yeem muab khoom rau cov neeg muas khoom uas muaj kev xav tau hnyav tshaj plaws, paub tias cov flanges no yuav nyob ntev tshaj cov khoom pheej yig dua li 10+ xyoo.
Peb muab ob hom tseem ceeb: pickled (ASTM A380) los txhim kho corrosion resistance thiab 2B mill finish (Ra 0.4-0.8μm, ASTM B46.1) rau kev siv dav dav. Cov txheej txheem pickling tshem tawm forging scale thiab tsim ib txheej passive 10-12μm, uas txo corrosion rates li ntawm 40% piv nrog cov surfaces uas tsis tau kho.
Peb cov CNC machining ua kom muaj qhov nruj: flange face flatness nyob hauv 0.02mm/100mm (ASME B16.5), thiab bolt holes sib raug zoo nrog ±0.1mm accuracy. Txhua lub flange tau txais ultrasonic test (ASTM E213) los tshawb xyuas cov internal flaws, thiab peb ntxiv protective caps kom thiaj li tsis txhob khawb sealing surface thaum thauj khoom.
Raws li ib tug Chinese manufacturer nrog 10 xyoo uas muab khoom rau EU offshore thiab energy sectors, peb ua haujlwm 6 specialized forging lines thiab 8 CNC machining centers, nrog lub peev xwm txhua xyoo ntawm 4,000 tons - ib qho ntawm ob peb factories uas tuaj yeem tsim tau large-diameter super duplex flanges (mus txog 48 inches) ntau zaus.
Peb lub lab hauv tsev siv X-ray fluorescence (XRF) los txheeb xyuas chemical composition, ua kom txhua batch ntsuas qhov tseeb ntawm chromium thiab molybdenum uas xav tau rau qhov super duplex strength. Peb khaws 300-500 tons hauv peb lub warehouse ntawm Qingdao, nrog kev hloov kho inventory twj ywm online, thiab FOB Qingdao shipments rau cov flanges muaj nyob tawm hauv 5 hnub.
Cov kev txiav txim siab tshaj 50 tons tau txais 7% discount, ntxiv rau free pickling thiab 24% tawm ntawm sea freight.
Nov yog peb qhov kev lees paub: Yog tias ib lub Super Duplex Steel Flanges ua tsis tau raws li ASTM A182 mechanical standards lossis qhia tau tias muaj pitting corrosion hauv 10 xyoos, peb yuav hloov nws hauv 7 hnub thiab them tag nrho cov nqi shipping. Peb kuj kaw cov nqi rau 60 hnub ntawm cov kev txiav txim siab loj, yog li kev hloov kho tsis cuam tshuam rau koj cov margins.
Lub Npe Khoom (Product Name)
Duplex steel flange
Tensile Strength
Cov Lus Nug Ua Ntej (Frequently Asked Questions)
Q: Koj txhawb nqa cov kev them nyiaj dab tsi?
Peb txhawb nqa T/T, L/C, thiab Western Union. Rau cov neeg muas khoom niaj hnub, peb kuj tuaj yeem tham txog cov ntsiab lus yooj yim dua.
Q: Koj puas muaj khoom muag rau cov khoom loj standard?
Yog, peb khaws khoom rau feem ntau cov kav dej, flanges, thiab fittings loj standard kom xa khoom sai.
Q: Koj ua li cas thiaj paub tseeb tias cov lus qhia khoom raug?
Txhua yam khoom raug tshawb xyuas los ntawm peb pab neeg QC siv cov cuab yeej ntsuas, thiab peb muab MTC (Material Test Certificate) los lees paub cov lus qhia.
