Duplex 2205 Welded yeeb nkab
Kev tsim khoom: Welded (ERW EFW SAW)
Qhov Loj: NPS 1/2 "-48" (common)
Teem sijhawm: 5S / 10S / 40S / 80S (ASME B36.19M)
Xaus: PE / BE (xov tooj raws li xaj)
Kev lees txais & cov ntaub ntawv: EN 10204 3.1 MTC + cov npe kub / ntau cov ntaub ntawv; PMI/NDT/testing per PO/ITP thaum teev tseg
Zhengzhou Huitong Pipeline Khoom Co., Ltd. Peb sov siab txais tos koj mus yuav peb cov duplex 2205 welded yeeb nkab. Peb lub Hoobkas kuj lees txais cov kev txiav txim customized. Thov pub dawb kom txaus siab rau peb cov nqi sib tw thiab kev pabcuam zoo heev.
Duplex 2205 Welded Yeeb Nkab Nqe 2026|Tus nqi, Daim ntawv loj, tus neeg muag khoom
Duplex 2205 welded yeeb nkab nqi feem ntau nyob ib ncig ntawm $5.2 - $8.9/kg hauv 2026, nyob ntawm txoj kab uas hla, phab ntsa thickness, kom muaj nuj nqis, thiab kev xeem yuav tsum tau. Duplex 2205 welded yeeb nkab (UNS S32205 / S31803 / 1.4462) muab ntau zog thiab chloride corrosion tsis kam tshaj 316L stainless hlau, ua rau nws siv dav hauvroj & roj, seawater systems, chemical processing, offshore platforms, thiab tshav kub exchangers.
Duplex 2205 Welded Pipe Nqe (2026)
| Sab nraud Diameter (OD) | Phab ntsa Thickness / Teem caij | Nqe ib kilogram ($/kg) | Nqe ib Ton ($/MT) |
| 2 "- 6" (60.3mm-168.3mm) | Teem sijhawm 40S / 80S | $6.50 – $8.90 | $6,500 – $8,900 |
| 8 "- 12" (219.1mm - 323.8mm) | Teem sijhawm 40S / STD | $5.90 – $7.80 | $5,900 – $7,800 |
| 14 "- 24" (355.6mm - 610mm) | Teem sijhawm 10S / 40S | $5.40 – $7.10 | $5,400 – $7,100 |
| 24 "+ (Kev cai LSAW / Welded) | Kev cai / Hnyav phab ntsa | $5.20 – $6.80 | $5,200 – $6,800 |
Tus nqi tseem ceeb tsav tsheb:
- Alport / Surcharge Index: Nickel thiab molybdenum kev lag luam hloov pauv ncaj qha hloov cov nqi hlau hauv ib hlis.
- Welding & Inspection Standard: Cov kav dej yuav tsum tau 100% X-ray radiologic testing (RT), ASTM A928 Class 1, los yog txhim kho corrosion testing (ASTM G48) nqa 15-25% tus nqi them tshaj tus qauv mill test report (MTR) stock.
- Length & Quantities: Random lengths vs. tseeb txiav-rau-lengthspecifications cuam tshuam qhov project khoom poob thiab tag nrho cov nqi yuav khoom.
Duplex 2205 Welded yeeb nkab yog dab tsi?
Duplex 2205 welded yeeb nkab (S32205 / S31803 / 1.4462)yog ferritic -austenitic stainless hlau yeeb nkab uas muaj kwv yees li 22% chromium, 5% npib tsib xee, thiab 3% molybdenum.
Lub duplex qauv ua ke:
- Austenitic stainless hlau corrosion kuj
- Ferritic stainless hlau siab zog
- Zoo dua tiv thaiv chloride kev nyuaj siab corrosion tawg (SCC)
Tej kev siv:
- Offshore roj platforms
- Subsea pipelines
- Desalination nroj tsuag
- Cov khoom siv tshuaj ua haujlwm
- Kub exchangers
- Marine piping systems
Duplex 2205 Welded yeeb nkab specifications
| Khoom Qib | UNS S32205 / S31803 / 1.4462 |
| Hom khoom | Duplex Stainless Hlau (Ferric + Austenitic) |
| Main Standard | ASTM A928 / ASME SA928 Cov Lus Qhia |
| Alternative Standard | ASTM A790 (Seamless & welded duplex yeeb nkab) |
| Sab nraud txoj kab uas hla | 6mm–1219mm (thiab kev cai loj -inch welded configurations mus txog 120 nti). |
| Phab ntsa Thickness | 0.5mm-50mm Teem caij 5S, 10S, 40S, 80S, XS, XXS, thiab cov phab ntsa hnyav txog 50mm. |
| Ntev | 6m / 12m / customized |
| Teem caij | SCH5S, SCH10S, SCH40S, SCH80S |
| Nto | Pickled, polished, xuab zeb blasted |
| Corrosion Resistance | Siab tshaj 304/316L |
| Yield zog | Ntau tshaj los yog sib npaug rau 450 MPa (65 ksi raug yam tsawg kawg nkaus tensile yuav tsum tau nyob ntawm specification) |
| PREN Tus nqi | 34–35 |
| Qhov kub thiab txias | Kwv yees li . -50℃rau 300℃pom zoo |
| Kev lag luam loj | Roj & Gas, Offshore, Tshuaj, Desalination |
Chemical Composition ntawm Duplex 2205
| Element | Cov ntsiab lus (%) |
| Chromium (Cr) | 22 |
| Nickel (Ni) | 5.5 |
| Molybdenum (hli) | 3.0 |
| Nitrogen (N) | 0.14–0.20 |
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.030 |
| Manganese (Mn) | Tsawg dua los yog sib npaug rau 2.0 |
| Silicon (Si) | Tsawg dua los yog sib npaug rau 1.0 |
Vim li cas Nitrogen tseem ceeb?
Nitrogen txhim kho:
- Austenite stability
- Pitting kuj
- Weld hlau corrosion kev ua tau zoo
- Mechanical zog
Kev tswj tsis zoo ntawm nitrogen thaum lub sij hawm vuam tuaj yeem ua rau ntau tshaj ferrite tsim thiab txo cov corrosion kuj.
alloy 2205 Mechanical zog
| Specification | UNS npe | Tensile zog (Min) | Yield zog (Min) | Elongation (Min) |
| ASTM A928 Qib 1/3/4/5 | S32205 / S31803 | 655 MPa (95 ksi) | 450 MPa (65 ksi) | 25% |
SAF 2205 Khoom Kub
| -46 degree | Haum nrog kev pom zoo rau kev sim |
| Chav ntsuas kub | Zoo heev |
| 250 degree | Pom zoo siab tshaj plaws kev pabcuam txuas ntxiv |
| >300 degree | Risk ntawm sigma theem tsim |
Sigma Phase Risk
Thaum kub siab: Ferrite → Sigma theem
Cov txiaj ntsig:
- Poob ntawm toughness
- Txo corrosion kuj
- Brittle poob siab
ASTM A928 Duplex sS 2205 Daim Ntawv Thov
1. Roj & Gas Extraction: Subsea flowlines, manifold piping, umbilical tubing, thiab siab - siab ntau lawm headers tuav qaub roj (H2S) thiab ntub CO2.
2. Seawater & Desalination: Rov qab osmosis (RO) siab -siab kom tau txais manifolds, brine rejection kab, thiab hauv nroog aqueducts.
3. Tshuaj & Petrochemical: Phosphoric acid ntau lawm kab, acetic acid distillation kab, catalyst piping, thiab organic acid cia tanks.
4. Pulp & Paper Processing: Digesters, bleach plant washers, white/green cawv pipelines, thiab kaw -loop scrubber systems.
Chemical Plant Failure Analysis Case Study:
Cov nroj tsuag tshuaj tau ntsib ntxov pitting corrosion nyob rau hauv 14 lub hlis ntawm ib sab hauv weld seam ntawm 316L kab tuav cov dej kub chloride. Hloov cov kev khiav nrog ASTM A928 Duplex 2205 welded yeeb nkab tshem tawm hauv zos crevice corrosion thiab ncua kev pab cuam lub neej tshaj 10 xyoo yam tsis muaj kev saib xyuas.
Duplex 2205 Yeeb Nkab Vuam Txheej Txheem
TIG Welding (GTAW)
- Siv rau: hauv paus hla; Cov kav dej me me; High - cov ntawv thov zoo
- Qhov zoo: Kev nkag tau zoo heev; Tus nqi qis qis
- Kev txwv: qeeb ntau lawm ceev
Plasma Arc Vuam (PAW)
- Qhov zoo: ruaj khov nkag; High productivity
- Siv hauv: Kub exchanger tubing; Nyias phab ntsa duplex yeeb nkab
SAW Welding
- Siv rau: Cov kav dej loj loj; Cov kav dej tuab
- Qhov zoo: High deposition rate; Haum rau tej yaam num offshore
EFW vuam (ASTM A928)
ASTM A928 tshwj xeeb npog cov hluav taws xob fusion welded ferritic / austenitic duplex stainless hlau yeeb nkab nrog muab tub lim hlau ntxiv. Cov chav sib txawv txhais cov kev cai weld thiab qib xeem.
Dab tsi yog qhov feem ntau vuam txoj kev rau Duplex 2205 welded yeeb nkab?
Kev sib xyaw ua ke ntawm ASTM A928 EFW thiab GTAW / SAW yog qhov feem ntau.
Yuav ua li cas kom tsis txhob Duplex Vuam Failures?
| Parameter | Ntau yam |
| Kub Input | 0.5-2.5 kJ / hli |
| Interpass kub | Tsawg dua los yog sib npaug li 150 degree |
| Filler Hlau | TIAB SA 2209 |
| Txias tus nqi | Tswj tau |
Vuam txoj kev zoo tshaj plaws:
Vuam duplex 2205 welded yeeb nkab yuav tsum muaj kev tswj cov cua sov kom nruj (feem ntau yog 0.5 txog 2.5 kJ / mm) kom tswj tau qhov sib npaug ntawm 50/50 austenite-ferrite theem piv nyob rau hauv cov vuam hlau thiab cua sov- cuam tshuam cheeb tsam (HAZ). Kev siv hluav taws xob ntau dhau ua rau muaj kev cuam tshuam cov dej nag lossis daus (sigma theem), ua kom muaj zog thiab corrosion kuj.
Stainless 2205 Ncej -Kev kho Weld:
Pickling thiab passivation siv hydrofluoric / nitric acid sib tov yog qhov yuav tsum tau tshaj tawm -cov kauj ruam tsim kom tshem tawm cov vuam cua sov thiab kho cov chromium oxide passivation txheej.
Duplex 2205 vs 316L vs Inconel 625
| Khoom / Parameter | Duplex 2205 Welded yeeb nkab | 316L Stainless hlau | Ib 625 |
| PREN (Pitting Resistance) | Ntau dua lossis sib npaug li 35 | 23−28 | Ntau dua lossis sib npaug li 43 |
| Yield zog (MPa) | Ntau dua lossis sib npaug li 450 | Ntau tshaj los yog sib npaug rau 220 | Ntau dua lossis sib npaug rau 414 |
| Kwv yees li. Nqe 2026 ($/kg) | $5.20 – $8.90 | $3.20 – $4.80 | $35.00 – $55.00 |
| Chloride Stress Corrosion | Zoo heev Resistance | Yooj yim rau Cracking | Siab Immune |
| Qhov Kev Pab Cuam Siab Tshaj | 300℃(572℃F) | 450℃(842℃F) | 980℃(1800℃F) |
Engineering takeaway: Duplex 2205 muab ob npaug ntawm cov qauv kev ua haujlwm ntawm 316L, tso cai rau cov kws ua haujlwm kom paub meej cov phab ntsa nyias nyias, txo qhov hnyav tag nrho thiab cov khoom siv thauj khoom thaum tiv thaiv chloride cracking hauv marine ib puag ncig.
Duplex 2205 Welded Pipe vs Super Duplex 2507
| Khoom | TIAB SA 2205 | Super Duplex 2507 |
| Cr | 22% | 25% |
| Mo | 3% | 4% |
| PREN | 35–38 | 40+ |
| Lub zog | Siab | Siab heev |
| Seawater Resistance | Zoo heev | Superior |
| Nqe | qis | Siab dua |
Thaum twg Koj Yuav Hloov Kho Ntawm 2205 txog 2507?
Xaiv 2507 thaum:
- Kub siab tshaj cov tshuaj chloride hnyav
- Offshore seawater ib puag ncig yog qhov phem heev
- Yuav tsum muaj kev pabcuam siab subsea
Xaiv 2205 thaum:
- Tus nqi optimization yog qhov tseem ceeb
- Muaj cov tshuaj chloride tsawg
- Yuav tsum muaj kev pab cuam offshore
Duplex 2205 Welded Pipe: Tiag -Cov Teeb Meem Ntiaj Teb
1 .Dab tsi yog qhov txawv ntawm seamless thiab welded Duplex 2205 kav?
2205 duplex stainless hlau seamless kav feem ntau haum rau siab -siab, me me - daim ntaub ntawv txoj kab uas hla. Hauv qhov sib piv, cov kav dej welded (ASTM A790/A928) muab tus nqi ntau dua -kev ua tau zoo thiab qhov ruaj khov nyob rau hauv loj - txoj kab nruab nrab ntawm cov kav dej (xws li 4 ntiv mus rau 24 ntiv tes thiab siab dua). Niaj hnub nimno siab - zaus hluav taws xob tsis kam vuam (ERW) los yog tsis siv neeg tungsten inert gas (TIG) vuam, ua ke nrog cov kev daws teeb meem nyuaj, ua kom ntseeg tau tias cov kev sib tshuam corrosion thiab txhua yam muaj zog ntawm 2205 welded kav yog siab piv rau cov kav dej seamless.
2. Dab tsi yog qhov yuav tsum tau vuam rau ASTM A790 Duplex 2205 welded kav?
Tus yuam sij rau vuam 2205 welded yeeb nkab yog nyob rau hauv kev tswj qhov zoo tagnrho 50/50 microstructural theem sib npaug ntawm austenite thiab ferrite. Thaum tshav kub kub input yuav tsum nruj me ntsis tswj (feem ntau pom zoo nyob rau hauv lub 0.5–1.5 kJ / mm range), thiab txuam muab tub lim hlau (xws li E2209 / ER2209) yuav tsum tau siv los tiv thaiv ntau ferrite coarsening los yog nag lossis daus ntawm detrimental intermetallic theem nyob rau hauv lub tshav kub (-Zone).
3. Yuav ntsuas tus nqi li cas -kev ua tau zoo thiab corrosion kuj ntawm Duplex 2205 welded yeeb nkab hauv cov nroj tsuag desalination?
Nyob rau hauv dej hiav txwv desalination thiab chloride- ib puag ncig nplua nuj, 2205 welded yeeb nkab qhia tshwj xeeb rau pitting corrosion thiab kev nyuaj siab corrosion cracking (SCC), ua tsaug rau nws cov nqi PREN siab (PREN Ntau dua lossis sib npaug rau 35)-ua tiav los ntawm kev pom zoo ntawm kwv yees li 22% Cr, 5% Mo, 3% Mo, Piv nrog rau siab -nickel austenitic stainless hlau (xws li 904L), nws muab ze li ob npaug ntawm cov khoom muaj zog ntawm tus nqi qis alloying, txo qhov yuav tsum tau ntawm phab ntsa thickness thiab tag nrho cov nqi tsim nyog.
4. Vim li cas Duplex 2205 welded yeeb nkab tsis ua hauj lwm ntxov hauv qee cov txheej txheem tshuaj yog tias kev kho cua sov tsis raug?
Yog tias cov chaw tsim khoom ua tsis tau raws li qhov txaus siab -length solution annealing (1020℃-1100 degree) ua raws li qhov txias txias tom qab kev tsim cov yeeb nkab. Los yog yog tias cov khoom raug cuam tshuam tsis zoo rau qhov ntsuas kub ntawm 300℃-572℃-sigma theem nag lossis daus yuav tshwm sim, ua rau cov khoom siv embrittlement thiab txo qis hauv corrosion kuj. Yog li ntawd, thaum muab cov ntaub ntawv no, nws yog ib qho tseem ceeb uas yuav tsum tau soj ntsuam cov chaw tsim khoom tsis yog -kev ntsuam xyuas kev puas tsuaj (NDT) cov ntaub ntawv, kev kuaj hluav taws xob (RT) cov txiaj ntsig, thiab cov ntaub ntawv ntawm 100% eddy tam sim no kuaj thiab kuaj hydrostatic.
Cov qauv tsim nyog
- ASTM A790 Txuj kev qhia tshwj xeeb rau Seamless thiab Welded Ferritic / Austenitic Stainless Hlau Yeeb
- ASTM A789 Txuj kev qhia tshwj xeeb rau Seamless thiab Welded Ferritic / Austenitic Stainless Hlau Tubing rau Kev Pabcuam General
- ASTM A928 Txuj Kev Qhia Tshwj Xeeb rau Ferritic / Austenitic (Duplex) Stainless Hlau Yeeb Nkab Hluav Taws Xob Fusion Welded nrog Ntxiv Filler Hlau
- ASME B36.19: Specification rau stainless hlau kav qhov ntau thiab tsawg
FAQ:
Q: Tus nqi tam sim no ntawm duplex 2205 welded yeeb nkab hauv 2026 yog dab tsi?
A: Cov nqi lag luam hauv paus pib txij li $ 4.20 txog $ 8.90 toj ib kg nyob ntawm qhov chaw sab nraud, phab ntsa thickness, xaj ntim, thiab ASTM cov chav kawm yuav tsum tau ua.
Q: Thaum twg koj yuav tsum xaiv Duplex 2205 welded yeeb nkab es tsis txhob 316L?
A: Qhia meej Duplex 2205 thaum ua haujlwm hauv chloride- thaj chaw nplua nuj nyob qhov twg 316L yog qhov yooj yim rau kev ntxhov siab corrosion cracking (SCC), lossis thaum muaj zog ntau dua tso cai rau cov phab ntsa nyias nyias thiab txo qhov hnyav tag nrho.
Q: Vim li cas duplex stainless hlau tawg yog vuam kub input siab dhau lawm?
A: Cov khoom siv hluav taws xob ntau dhau ua rau qis qis qis, txhawb kev tsim cov nkig intermetallic theem (xws li sigma theem) thiab kev loj hlob ferrite ntau dhau, uas ua rau muaj kev cuam tshuam hnyav thiab corrosion kuj.
Q: Puas yog ASTM A928 zoo dua ASTM A790 rau kev xaiv ob lub yeeb nkab?
A: ASTM A928 tshwj xeeb tswj hwm hluav taws xob- fusion-welded (EFW) yeeb nkab nrog cov hlau muab tub lim ntxiv, qhov ASTM A790 npog seamless thiab welded kav yam tsis muaj hlau muab tub lim. Kev xaiv nyob ntawm qhov project txoj kab uas hla thiab engineering specifications.
Q: Duplex 2205 welded yeeb nkab puas tuaj yeem siv rau hauv siab - qhov kev pabcuam kub?
A: Nws feem ntau txwv rau kev ua haujlwm kub hauv qab 300℃(572℃F). Ntev -lub sij hawm raug kub siab tshaj 300℃ua rau 475℃embrittlement, ua rau poob loj ntawm ductility.
Hais txog Zhengzhou Huitong Pipeline Equipment Co., LTD.
HT PIPE yog ib tug zoo-paub stockist thiab exporter. Peb yog cov khoom siv stainless / carbon / npib tsib xee alloy khoom xa khoom nrog 15+ kev xa tawm. Peb tsis tsuas yog muab cov kav dej, phaj, puag ncig, tab sis kuj yog cov yeeb nkab fittings, flanges, thiab lwm yam. Tiv tauj peb kom paub ntau ntxiv thiab cov nqi dawb.
✅ ISO 9001: 2015
✅ MTC 10204 3.1 3.2
✅ 100% PMI (Positive Material Identification)
✅ Ultrasonic Testing (Rau ASME VIII)
✅ Thib peb-Kev Tshawb Fawb (SGS/BV/DNV/LR)
✅ NACE MR0175 / ISO 15156
Author: Chloe Pu
5+ Xyoo ntawm Kev Tshaj Lij Tshaj Lij Tshaj Tawm hauv Stainless Hlau, Nickel Alloy & Carbon Steel Hlau Kev Lag Luam
Hloov tshiab kawg: Lub Xya hli ntuj 27, 2026 (Beijing Sijhawm)
Cim npe nrov: duplex 2205 welded yeeb nkab, Tuam Tshoj, manufacturers, hoobkas, nqe, customized
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