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2205 Duplex Stainless Steel Pipe

🔥 Stop risking catastrophic chloride pitting, stress corrosion cracking, or strict refinery project-site rejections due to unverified duplex alloy mill runs.

SXY Steel Group manufactures industrial-grade 2205 Duplex stainless steel pipes (available in heavy-wall seamless and precision welded configurations) engineered specifically for high-salinity marine environments, aggressive petrochemical refining, and severe chemical process systems. Fabricated with an exact 50:50 austenitic-ferritic microstructural balance, precise nitrogen enrichment, and zero-tolerance dimensional profiling, our premium 2205 piping guarantees unmatched yield strength and supreme localized corrosion resistance under the harshest mechanical field loads. Secure your prioritized container mill capacity today via our Guaranteed 2-Hour Rapid Quote service before raw material alloy indices fluctuate.

Tired of slow emails while your project bidding or engineering submittal deadline is closing in? Eliminate destination inspection anxieties and lock in verified material chemistry records right now.

ASTM A790 UNS S32205 S31803 / EN 10217-7 1.4462 / JIS G3459 SUS32205 Seamless & Welded Tubes

PRODUCT DETAILS

📊 Duplex & Super Duplex Stainless Steel Three-Standard Cross Matrix

American Standard (ASTM / UNS)European Standard (EN / ISO)Japanese Standard (JIS)Chinese Standard (GB)Core Material Performance Profile
ASTM A790 / A928 UNS S32205 / S31803EN 10217-7 1.4462 / X2CrNiMoN22-5-3JIS G3459 SUS32205GB/T 21833 022Cr22Ni5Mo3NHigh-Yield Duplex Structure, Extreme Chloride Pitting Resistance, Sour Gas Processing & Desalination Arrays
ASTM A790 UNS S32750 (Super Duplex)EN 10216-5 1.4410JIS G3459 SUS32750GB/T 21833 022Cr25Ni7Mo4WCuNPREN > 40 Critical Applications, Deepsea Subsea Manifolds, Harsh Marine Oil & Gas Outfalls
ASTM A312 TP316 / 316L (Austenitic)EN 10217-7 1.4401 / 1.4404JIS G3459 SUS316LGB/T 14976 02Cr17Ni12Mo2Standard Coastal Marine Environments, General Petrochemical Infrastructure & Pulp/Paper Plants

🛡️ Technical QA/QC Verification
100% Mandatory PMI & Ferrite Content Verification: Every single production run of 2205 duplex piping undergoes rigorous handheld spectrometry Positive Material Identification (PMI) to lock in precise Cr-Ni-Mo stoichiometry alongside mechanical ferrite scope balance tracking.
Traceable EN 10204 3.1 Certification: Shipped with complete, authentic mill validation records certifying Intergranular Corrosion testing (ASTM A262 Practice E), hydrostatic pressure holding, and eddy current flaws. Full support for SGS, Lloyd’s Register, and Bureau Veritas third-party field witness audits.
Financial Protection Architecture: SXY Steel Group completely eliminates global commercial transaction risk for procurement departments by conducting all major volume engineering contracts via 100% Irrevocable Letters of Credit (L/C) at sight.

📦 Premium Anti-Scratch Marine Protection & Ocean Logistics
Isothermal Surface Protection: Pipe bundles are fully encapsulated in durable thick poly-sleeving wraps or carefully layered using continuous interleaved wooden dunnage separators to prevent any metal-on-metal transit abrasion or micro-scratching during long sea voyages.
Seaworthy Heavy Structural Framing: Tubes are heavily cross-braced in industrial timber plywood crates or secured with reinforced steel strapping and pre-integrated heavy nylon lifting slings for lightning-fast port terminal crane discharging.
Pre-Arranged Port Protection: SXY Steel Group pre-clears 14 to 21 days of complimentary container demurrage directly with global ocean lines to ensure your chemical project site timing remains completely unaffected by harbor customs bottlenecks.
CategoryDetails
Product Name2205 Duplex Stainless Steel Pipe (UNS S32205/S31803)
StandardIndustrial Pipe: ASTM A790/A790M, EN 10216-5

Heat Exchanger Tube: ASTM A789/A789M

Sanitary Tube: ASTM A270 (when applicable for hygienic service)

SizeOuter Diameter Range: 9.5~2000mm
Thickness Range: 0.5~20mm (Size can be customized.)
Length: Up to 18.3 meters per piece.
Shape SectionRound, square, rectangular
UsageIndustrial Pipe: Chemical & petrochemical processing, oil & gas (especially offshore), pulp & paper, seawater systems.

Heat Exchanger Tube: Condensers, coolers, heat exchangers in chloride-containing environments.

Mechanical Tube: Structural components in corrosive environments requiring high strength.

Features:
1.Our stainless steel tubes pipes are treated by bright annealing, inside weld bead removing, precise polishing. The roughness of tubes could be under 0.3μm.

2.We have the non destructive testing ( NDT ), eg. online eddy current inspection and hydraulic or airtightness testing.

3. Thick welding, good appearance.The mechanical properties of tube could be tested.

4. The raw material is from Taigang, Baogang, Zhangpu and so on.

5. And Our tubes are certificated by AD 2000-W0, PED 2014/68/EU, ISO 9001 : 2015.

6. Full material traceability is guaranteed during the manufacturing process.

7. Polished tube is supplied in individual plastic sleeves with capped ends ensuring optimum cleanliness.

8. Internal Bore: Tubes have a smooth, clean and crevice free bore.

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Packing and shipping

Our company has passed ISO9001 quality management system certification, Our Mill product with CE/EN10204 / ASTM/Classification society certificate/CASO/BIS etc certificate.All the customers give good appreciation to our products.We are glad to be your good partner.

 

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Application Areas

Steel is widely used in steel structure workshops, bridge frames, main structures of high-rise buildings, and infrastructure construction (such as highways, oil and gas pipelines). Its high strength properties ensure load-bearing stability and seismic performance. In ship manufacturing, steel is used to build hull structures, decks, and internal components. Hot-rolled coils rely on their load-bearing capacity to adapt to harsh environments. ‌

 

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Factory workshop

With a commitment to excellence, innovation, and sustainability, the company has established itself as a trusted partner in the international steel industry.After nearly two decades of relentless endeavour, our client base now spans over 110 countries and regions across Europe, the Middle East, South America, and Southeast Asia.

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🔬 Free Project Bill of Materials (BOM) Nesting Calculation & Linear Allocation Analysis

Submitting critical engineering layouts for offshore platforms, refinery heat exchangers, chemical storage terminal links, or complex marine pipelines? Paste your raw engineering files, spool drawings, or detailed Bill of Materials (BOM) sheets into the form below. The industrial engineering group at SXY Steel Group will perform a professional programmatic nesting computation to optimize cut tolerances, minimize expensive scrap generation, and protect your project procurement capital.

🎁 Exclusive Lead Benefit: Submit your data right now to immediately unlock our June 2026 Stainless Steel Global Price Movement Outlook & Oceanic Freight Discount Matrix report.

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