Super Duplex 2507 Welded Yeeb Nkab
Kev tsim khoom: Welded (ERW EFW SAW)
Qhov ntau thiab tsawg: 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 + daim ntawv teev cov cua sov / ntau ntau; PMI/NDT/testing per PO/ITP thaum teev tseg
Zhengzhou Huitong Pipeline Equipment Co., Ltd. yog ib qho ntawm cov ua lag luam thiab cov neeg muag khoom ntawm super duplex 2507 welded yeeb nkab hauv Suav teb. Peb sov siab txais tos koj mus yuav peb super duplex 2507 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.
Yuav Super Duplex 2507 Welded Yeeb Nkab 2026|ASTM A928 UNS S32750 Tus nqi
Super Duplex 2507 welded yeeb nkab nqi feem ntau yog $ 8.5- $ 15 / kg hauv 2026, nyob ntawm qhov loj, phab ntsa thickness, vuam txheej txheem, thiab cov ntawv pov thawj yuav tsum tau. UNS S32750 welded yeeb nkab muab zoo chloride corrosion kuj, siab zog, thiab yog dav siv nyob rau hauv offshore roj & roj, seawater desalination, tshuaj ua, thiab marine systems.
Super Duplex 2507 Welded Yeeb Nkab Nqe 2026
| Sab nraud Diameter (OD) | Phab ntsa Thickness Range | Nqe ib Meter (USD) | Nqe ib Ton (USD) |
| 2 nti (60.3mm) | Sch 10S rau Sch 80S | $45 – $75 | $8,500 – $11,000 |
| 4 nti (114.3mm) | Sch10S to XXS | $110 – $180 | $9,200 – $12,500 |
| 8 nti (219.1 hli) | Sch40 rau Sch80 | $320 – $490 | $10,000 – $13,200 |
| 12 nti (323.8 hli) | Standard mus rau Ntxiv Strong | $650 – $980 | $11,500 – $14,200 |
Tus nqi tsav tsheb:Seamless kav dej hais kom tus 30% mus rau 50% hwm tshaj welded kav nyob rau hauv loj diameters. Yog li ntawd, longitudinal los yog kauv welded (EFW) 2507 yeeb nkab yog qhov kev xaiv kev lag luam rau txoj kab uas hla tshaj 8 ntiv tes hauv kev lag luam loj.
Dab tsi yog Super Duplex 2507 Welded Pipe?
Super Duplex 2507 (UNS S32750 / F53 / EN 1.4410) yog ferritic -austenitic stainless hlau tsim los rau kev thov cov ntawv thov uas xav tau lub zog zoo thiab corrosion kuj. Manufactured feem ntau nyob rau hauvASTM A928 Cov Lus Qhia Tshwj Xeeb(rau hluav taws xob fusion-welded phaj) thiabASTM A790 Cov Lus Qhia Tshwj Xeebspecifications, cov hlau no sib npaug li 50/50 microstructure ntawm austenite thiab ferrite.
Piv nrog seamless 2507 yeeb nkab, welded yeeb nkab muaj qhov zoo hauvloj diameters, customized lengths thiab nqi efficiency, tab sis yuav tsum muaj kev tswj xyuas nruj kom tswj tau theem sib npaug.
S32750 Cov yam ntxwv tseem ceeb ntawm kev ua haujlwm muaj xws li Pitting Resistance Equivalent Number (PREN) ntau dua 42, ua kom muaj kev tiv thaiv zoo tshaj tawm tsam cov tshuaj chloride hauv zos. Cov ntawv thov dav dav dav dav dav dav dav dav dav dav dav dav dav dav dav dav dav dav dav dav dav dav dav dav dav dav dav dav dav dav dav dav dav, nkoj nkoj nkoj, nkoj nkoj nkoj, nkoj nkoj nkoj, thiab cov tshuab hluav taws xob flue gas desulfurization (FGD).
Hom ntau lawm muaj xws li:
- ERW (Electric Resistance Vuam)
- EFW (Electric Fusion Vuam)
- LSAW (Longitudinal Submerged Arc Vuam)
- Kauv welded yeeb nkab (rau kev siv txoj kab uas hla loj)
Super Duplex 2507 Pipe specification thiab Dimensions:
- Standard Specifications:ASTM A928, ASTM A790, ASME SA928, ASME SA790, EN 10216-5, EN 10217-7
- Qhov Loj Loj:NPS 1/2 nti rau 48 nti (OD 21.3mm txog 1219mm)
- Phab ntsa Thickness (Schedule):Sch 5S, Sch 10S, Sch 40S, Sch 80S, XS, XXS, thiab kev cai hnyav- phab ntsa thicknesses txog 50 hli
- Txoj kev tsim khoom:Tsis Siv Neeg Gas Tungsten Arc Vuam (GTAW/TIG) lossis Plasma Arc Vuam (PAW) nrog cov tshuaj tom qab annealing thiab tag nrho cov kev kuaj tsis zoo (NDT).
Tshuaj muaj pes tsawg leeg ntawm UNS S32750
| Lub ntsiab | Kev xav tau (%) |
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.030 |
| Silicon (Si) | Tsawg dua lossis sib npaug li 0.80 |
| Manganese (Mn) | Tsawg dua lossis sib npaug li 1.20 |
| Chromium (Cr) | 24.0–26.0 |
| Nickel (Ni) | 6.0–8.0 |
| Molybdenum (hli) | 3.0–5.0 |
| Nitrogen (N) | 0.24–0.32 |
| Phosphorus | Tsawg dua lossis sib npaug li 0.035 |
| Sulfur | Tsawg dua los yog sib npaug rau 0.020 |
Lub siab chromium, molybdenum thiab nitrogen cov ntsiab lus ua rau PREN tus nqi siab dua 40, ua rau nws tsim nyog rau cov tshuaj chloride hnyav.
UNS S32750 Mechanical Properties
| Khoom | Tus nqi |
| Lub zog muaj zog (0.2%) | Ntau dua lossis sib npaug li 550 MPa |
| Tensile zog | 800-1000 MPa |
| Elongation | Ntau dua lossis sib npaug li 25% |
| Hardness | Tsawg dua lossis sib npaug li 28 HRC |
| Qhov ntom | 7.8 g / cm³ |
| Elastic Modulus | ~ 200 GPa |
Corrosion Resistance
1. Chloride Pitting Resistance
Super Duplex 2507 yog tsim los rau:
- seawater cooling systems
- desalination nroj tsuag
- offshore platforms
- chemical ua
Kev ua tau zoo ntawm ASTM G48:
| Kuaj | Hom Kev Ua Haujlwm |
| Critical Pitting Kub (CPT) | Ntau dua lossis sib npaug li 50 degree |
| Critical Crevice Temperature | Ntau dua lossis sib npaug li 35 degree |
2. Stress Corrosion Cracking (SCC)
Piv rau 316L, 2507 muab kev tiv thaiv ntau dua vim tias:
- Ferrite theem txo SCC rhiab heev
- Nitrogen txhawb nqa zaj duab xis passive
- Siab dua PREN txhim kho kev txhim kho hauv cheeb tsam corrosion
ASTM A928 Super Duplex 2507 Welded Yeeb Nkab Kub Ntau Yam
| Qhov kub thiab txias | Kev pom zoo |
| -46 degree | Zoo heev |
| 0-100 degree | Zoo heev |
| 150-250 degree | Tsim nyog |
| 250-300 degree | Yuav tsum tau soj ntsuam |
| >300 degree | Zam txhob raug-ntev ntev |
Kev txwv tseem ceeb: Tshaj li ntawm 300 degree, sigma theem nag lossis daus tuaj yeem tshwm sim.
Cov teebmeem:
- Txo toughness
- Txo corrosion kuj
- Brittle intermetallic tsim
welding thiab Manufacturing txheej txheem
Kauj Ruam 1: Xaiv phaj
Kauj Ruam 2: Plate Forming
| Txoj kev | Daim ntawv thov |
| UOE tsim | Loj txoj kab uas hla |
| JCOE tsim | Siab -paj yeeb loj |
| Yob dabtsi yog khoov | Nruab nrab txoj kab uas hla |
Kauj Ruam 3: Vuam
Vuam txoj kev zoo tshaj plaws:
Vuam 2507 welded yeeb nkab yuav tsum nruj tswj ntawm cov cua sov input thiab interpass kub (feem ntau khaws cia qis dua 150 ∘C). Kev siv hluav taws xob ntau dhau ua rau theem ob los nag lossis daus (chi theem thiab sigma theem) nyob rau hauv tshav kub- cuam tshuam thaj chaw (HAZ), ua rau muaj kev cuam tshuam hnyav thiab corrosion tsis kam. Welders yuav tsum siv cov hlau sib xyaw ua ke (xws li AWS A5.9 ER2594) thiab tswj kom muaj nitrogen txaus-argon shielding gas mix kom khaws tau qhov sib npaug ntawm ob theem.
"Yuav ua li cas kom tsis txhob weld lwj thiab sigma theem embrittlement thaum vuam Super Duplex 2507 kav?"
Kev tswj xyuas cov cua sov nruj (feem ntau yog 0.5 - 1.5 kJ / mm) thiab cov hlau sib xyaw ua ke (piv txwv li, E2594 / ER2594) yog qhov tseem ceeb los tswj kom muaj qhov sib npaug ntawm 50/50 ferrite-austenite microstructure thiab tiv thaiv kev ua sigma theem.
Cov txheej txheem welding:
EFW Vuam
- High quality weld seam
- Haum rau cov yeeb nkab phab ntsa tuab
- Ib qho yooj yim NDT tshuaj xyuas
SAW Welding
- High productivity
- Loj txoj kab uas hla
Yuav ua li cas kom tsis txhob Weld Failures Cracks?
| Ua tsis tiav | Ua rau | Kev daws |
| Tshaj ferrite | Siab txias txias | Tswj cov cua sov nkag |
| Tshaj austenite | Tshaj tawm cua sov | Ua raws li WPS |
| Sigma Phase | Kub kub raug | Tsis txhob overheating |
| Porosity | Tsis zoo shielding gas | Txhim kho kev huv huv |
| Poob ntawm corrosion kuj | Tsis yog muab tub lim hlau | Siv ER2594 |
Kauj Ruam 4: Kev Ntsuam Xyuas Cov Cai
Offshore thiab chemical tej yaam num feem ntau xav tau:
- 100% RT tshuaj xyuas
- UT kev xeem
- Kev kuaj PMI
- Ferrite ntsuas
- Kev ntsuam xyuas hydrostatic
- EN 10204 3.1 daim ntawv pov thawj
Kev paub txog Engineering tiag
Case Study: Seawater Desalination Plant Failure Analysis
Ib qho chaw nruab nrab sab hnub tuaj desalination cog tau ntsib kev puas tsuaj pitting tsis ua haujlwm li ntawm 14 lub hlis hauv 316L siab-siab RO cov kab hauv qab vim qhov nce siab cov tshuaj chlorine seem thiab cov micro- cov kab mob. Cov kws tshaj lij tau hloov qhov ua tsis tiav nrog ASTM A928 Super Duplex 2507 welded yeeb nkab. Los ntawm kev tswj xyuas cov ntsiab lus ferrite ntawm 35% thiab 55% thiab ua kom muaj kev xa khoom zoo-weld pickling thiab passivation, cov nroj tsuag tshem tawm qhov ua tsis tiav ntxov ntxov dhau lub qhov rais ua haujlwm 10 xyoo.
Super Duplex 2507 vs 2205: Qhov twg kuv yuav tsum xaiv rau thaj chaw marine?
2507 vs 2205: 2507 muaj ntau dua PREN (Pitting Resistance Equivalent Number> 42) piv rau 2205 (~ 35), ua rau nws muaj peev xwm tiv taus chloride pitting thiab crevice corrosion nyob rau hauv aggressive chloride - nplua nuj ib puag ncig xws li seawater thiab desalination nroj tsuag.
Super Duplex 2507 vs. Duplex 2205 vs . 316L
| Khoom / Parameter | Super Duplex 2507 (UNS S32750) | Duplex 2205 (UNS S32205) | Austenitic 316L (UNS S31603) |
| PREN Tus nqi | >42 | 30−38 | 23−28 |
| Min. Yield zog (MPa) | 550 | 450 | 220 |
| Max ua haujlwm kub (degree) | 300 degree | 250 degree | 450 degree |
| Tus nqi txheeb ze Index | Siab (3.2 ×) | Nruab nrab (2.2 ×) | Lub hauv paus (1.0 ×) |
| Chloride Pitting Resistance | Zoo heev | Zoo | Nruab nrab |
Comparative Insight: Thaum 316L yog qhov tsim nyog rau kev tuav dej hauv nroog, nws raug kev txom nyem los ntawm pitting ceev ceev hauv thaj chaw marine. Duplex 2205 tuav tus qauv dej hiav txwv zoo txog li 50∘C, tab sis Super Duplex 2507 yuav tsum tau thaum ua haujlwm kub siab tshaj 80 ∘C los yog qhov siab tshaj - nrawm brine thiab qaub roj (H2S) tam sim no.
ASTM A790 UNS S32750 welded vs seamless yeeb nkab
Welded vs. Seamless: High-frequency welded (ERW) los yog longitudinal submerged arc welded (LSAW) 2507 kav muab nqi thiab txhuas-lub sij hawm zoo rau cov loj- txoj kab uas hla, muab lawv mus rau kev nruj NDT (Non-Kev ntsuam xyuas kev puas tsuaj).
Cov qauv tsim nyog
- ASTM A790 Txuj Kev Qhia Tshwj Xeeb rau Seamless thiab Welded Ferritic / Austenitic Stainless Hlau Yeeb
- ASTM A928: Txuj kev qhia tshwj xeeb rau Ferritic / Austenitic (Duplex) Stainless Hlau Yeeb Nkab Hluav Taws Xob Fusion Welded nrog Ntxiv Cov Filler Hlau
FAQ:
Q: Tus nqi tam sim no yog dab tsi rau ib kg rau Super Duplex 2507 welded yeeb nkab hauv 2026?
A: Cov nqi lag luam feem ntau hloov pauv ntawm $ 8.50 thiab $ 14.20 toj ib kg, nyob ntawm qhov kev txiav txim ntim, lub sij hawm phab ntsa tuab, thiab cov nqi nickel thiab molybdenum tam sim no.
Q: Thaum twg koj yuav tsum xaiv Super Duplex 2507 es tsis txhob Duplex 2205?
A: Xaiv 2507 thaum qhov chaw ua haujlwm muaj cov tshuaj chloride ntau dua, pH qis dua, lossis ua haujlwm kub siab tshaj 50∘C qhov twg 2205 txaus ntshai pitting lossis kev ntxhov siab corrosion tawg.
Q: Dab tsi yog qhov txawv ntawm Duplex 2205 thiab Super Duplex 2507 welded kav hauv marine ib puag ncig?
A: Piv rau 2205, 2507 muaj ntau dua ntawm chromium (25%), molybdenum (4%), thiab nitrogen (0.27%). Nyob rau hauv ib puag ncig uas muaj kev sib sib zog nqus- hiav txwv tej yam kev mob, siab chloride concentrations, seawater desalination (siab- siab RO piping), thiab qaub roj thiab roj teb (H₂S/CO₂), 2507 welded yeeb nkab qhia tau zoo unmatched tsis kam rau pitting thiab crevice corrosion.
Q: Dab tsi yog qhov ntsuas kub siab tshaj plaws rau Super Duplex 2507?
A: 2507 feem ntau pom zoo rau kev ua haujlwm kub txog 300℃(572℃F). Tshaj qhov kev pheej hmoo no ua rau muaj kev puas tsuaj rau theem nag lossis daus, txo qis kev tiv thaiv corrosion.
Q: Vim li cas qhov vuam tsis raug puas tsuaj Super Duplex 2507 kav?
A: Cov khoom siv hluav taws xob ntau dhau thaum lub vuam ua rau tsim cov txheej txheem sib txuas (xws li sigma theem) uas rhuav tshem cov khoom muaj kev cuam tshuam toughness thiab localized corrosion kuj.
Q: Puas yog welded 2507 kav dej zoo li cov kav dej seamless nyob rau hauv siab - siab subsea kab?
A: Yog lawm, yog tias lawv tau tsim los rau nruj ASTM A928 tus qauv, tau txais 100% radiography lossis kuaj ultrasonic, thiab tau txais kev tshaj tawm zoo -weld solution annealing.
Q: Dab tsi muab cov hlau yuav tsum tau siv thaum vuam UNS S32750?
A: AWS A5.9 ER2594 muab tub lim hlau yog tus qauv, feem ntau ua ke nrog cov roj tiv thaiv uas muaj 2% nitrogen los tuav cov hlau austenite-ferrite theem sib npaug.
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 Plaws hauv Stainless Hlau, Nickel Alloy & Carbon Steel Hlau Kev Lag Luam
Hloov tshiab kawg: Lub Xya hli ntuj 30, 2026 (Beijing Sijhawm)
Cim npe nrov: super duplex 2507 welded yeeb nkab, Suav teb, manufacturers, hoobkas, nqe, customized
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