Peb cov duplex 2205 flanges ua raws li ASTM A182 nruj heev. Qhov tshwj xeeb ntawm cov khoom no yog nws "duplex" qauv - muaj li ntawm 50% austenite thiab 50% ferrite, ua ke cov txiaj ntsig ntawm ob qho qauv.
Kev sim pitting ua raws li ASTM G48 Method A tau pom tias tom qab muab tso rau hauv 6% ferric chloride daws ntawm 40°C rau ntau tshaj 200 teev, peb cov duplex 2205 flanges tseem nyob zoo thiab tsis pom muaj pitting. Qhov kev tiv thaiv corrosion zoo heev no ua rau nws yog qhov kev xaiv zoo tshaj plaws rau cov chaw hnyav xws li offshore oil platforms thiab chemical plants.
Rau cov neeg muag khoom loj, qhov no txhais tau tias:
Koj tuaj yeem siv cov khoom no los ua kom tau raws li cov neeg muas khoom xav tau ntawm ntau yam kev lag luam, txij li marine engineering, chemical processing mus txog paper mills. Qhov no tsis tsuas yog ua kom yooj yim rau koj cov khoom lag luam, tab sis kuj txo tau koj cov kev ntxhov siab ntawm kev tswj hwm khoom muag.
Peb muab ob hom tseem ceeb: pickled (ASTM A380) kom tshem tawm forging scale thiab 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 tsim ib txheej passive 8-10μm uas nce chloride resistance 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 0.03mm/100mm (ASME B16.5), thiab bolt holes raug drilled nrog ±0.1mm accuracy. Txhua lub flange raug ultrasonic testing (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 chemical sectors, peb ua haujlwm 6 specialized forging lines thiab 8 CNC machining centers, nrog lub peev xwm txhua xyoo ntawm 4,500 tons - ib qho ntawm ob peb factories uas tuaj yeem tsim tau large-diameter duplex flanges (mus txog 48 inches) ntau zaus.
Peb lub lab hauv tsev siv OES (Optical Emission Spectroscopy) los txheeb xyuas chemical composition, ua kom chromium thiab molybdenum ntau txog qhov tsim nyog rau qhov duplex structure zoo. Peb khaws 300-500 tons hauv peb lub warehouse ntawm Qingdao, nrog kev hloov kho inventory twj ywm ntawm peb qhov chaw, thiab FOB Qingdao shipments rau cov khoom muaj nyob tawm hauv 5 hnub.
Cov kev txiav txim siab tshaj 50 tons tau txais 7% discount, ntxiv rau free pickling thiab 27% shipping fee txo.
Nov yog peb qhov kev lees paub: Yog tias ib lub Duplex 2205 Flange ua tsis tau raws li ASTM A182 mechanical standards hauv 7 xyoos, lossis qhia tau tias muaj pitting corrosion hauv kev sim, peb yuav hloov nws hauv 6 hnub thiab them rov qab tag nrho cov nqi shipping. Peb kuj kaw cov nqi rau 50 hnub ntawm cov kev txiav txim siab uas tau lees paub, yog li kev hloov kho tsis cuam tshuam rau koj cov margins.
Qib Khoom (Material Grade)
F51 (UNS S31803; EN 1.4462), Duplex Stainless Steel nrog 21-23% Chromium, 4.5-6.5% Nickel, 2.5-3.5% Molybdenum, 0.08-0.20% Nitrogen
Cov Khoom Ua (Mechanical Properties)
Tensile Strength ≥620MPa, Yield Strength ≥450MPa, Elongation ≥25%, Hardness ≤290 HB
Qhov Loj Ntawm Lub Qhov (Nominal Diameter)
Cov Loj Standard los ntawm DN10 (3/8") mus rau DN2000 (80"), Cov Loj Tshwj Xeeb Muaj
Kev Nqus Siab (Pressure Rating)
Class 150-2500 (lb); PN16-PN100, Tsim Rau Cov Kav Dej Nqus Siab Nruab Nrab thiab Siab
Cov Qauv Ua Tau Raws (Compliance Standards)
Khoom: ASTM A182/A182M; Dimensions: ASME B16.5, ASME B16.47, EN 1092-1, thiab lwm yam.
Cov Qauv Tshawb Xyuas (Inspection Standards)
Ua tau raws li ASTM E165 (Liquid Penetrant Testing), ASTM E709 (Magnetic Particle Testing), thiab ASME BPVC Section VIII
Hom Kev Pab (Service Type)
Kev Txiav Tshwj Xeeb (Custom Cutting)
Txiav rau cov qhov ntev tshwj xeeb nrog precision ntawm ±0.5mm
Kev Tsim Flange (Flange Forming)
Muaj nyob rau ntau hom: Slip-On, Weld Neck, Socket Weld, Threaded, thiab lwm yam.
Kev Kho Sa Ntuj (Surface Treatment)
Pickling Passivation, Polishing (Ra≤0.8μm), Sandblasting, thiab lwm yam los txhim kho Corrosion Resistance
Kev Pab Welding (Welding Service)
TIG Welding Process ua kom cov khoom ua tiav ntawm weld joints phim cov khoom hauv qab
Kev Tshawb Xyuas Tsis Ua Phem (Non-Destructive Testing)
Cov Kev Tshawb Xyuas Tom Qab Ua Tiav: Ultrasonic Testing (UT), Radiographic Testing (RT), thiab lwm yam.
Kev Sau Npe (Identification Marking)
Laser Engraving rau specifications, Material Grade, Standards, thiab lwm yam rau kev taug qab
Cov Lus Nug Ua Ntej (Frequently Asked Questions)
Q: Koj puas tuaj yeem muab phau ntawv qhia khoom kom meej?
A: Tau, peb yuav xa ib phau ntawv qhia digital nrog specifications, nqi, thiab duab los ntawm email. Thov qhia peb cov kev xav tau tshwj xeeb.
Q: Puas muaj sijhawm warranty rau koj cov khoom? Ntev npaum li cas?
A: Yog, tag nrho cov khoom muaj 12-month warranty. Hauv lub sijhawm no, peb yuav daws cov teeb meem uas cuam tshuam rau cov khoom tsis zoo tsis them nqi.
Q: Koj puas muaj kev paub txog kev xa khoom tawm mus rau peb lub teb chaws / cheeb tsam?
A: Peb tau xa khoom mus rau ntau tshaj 50 lub teb chaws, suav nrog US, EU, Southeast Asia, thiab Middle East. Peb paub txog cov cai nkag teb chaws hauv zos.
