Duplex Steel UNS S32205 Flanges are high-performance piping components engineered for demanding industrial environments where strength and corrosion resistance are critical. Steel Icon Stainless Pvt. Ltd. manufactures precision-machined duplex steel flanges designed for use in oil and gas pipelines, offshore platforms, chemical processing plants, desalination units, and power generation facilities. These flanges provide secure and leak-proof connections between pipes, valves, pumps, and other pressure equipment in systems exposed to high pressure and aggressive media.
Duplex Steel UNS S32205 Flanges are widely chosen for structural and mechanical engineering projects that require superior load-bearing capacity combined with excellent resistance to stress corrosion cracking. Their balanced microstructure and enhanced mechanical properties make them suitable for heavy-duty industrial fabrication and structural assemblies operating in harsh conditions.
Duplex Steel UNS S32205 is a nitrogen-enhanced duplex stainless steel grade containing a balanced combination of austenitic and ferritic phases. The chemical composition typically includes approximately 22 percent chromium, 5 to 6 percent nickel, 3 percent molybdenum, and controlled nitrogen content. This dual-phase microstructure provides significantly higher strength compared to conventional austenitic stainless steels such as 304 and 316.
The high chromium and molybdenum content deliver excellent resistance to pitting and crevice corrosion, particularly in chloride-rich environments. Nitrogen improves mechanical strength and enhances resistance to localized corrosion. Duplex Steel UNS S32205 Flanges also demonstrate outstanding resistance to stress corrosion cracking, making them suitable for offshore and marine piping systems.
From a mechanical perspective, these flanges offer high tensile and yield strength, allowing for thinner sections without compromising structural integrity. They perform reliably under high-pressure and moderate-temperature conditions commonly found in pressure vessels, heat exchangers, and industrial piping networks. Their controlled ferrite content ensures good weldability while maintaining toughness and structural stability.
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One of the key advantages of Duplex Steel UNS S32205 Flanges is their superior strength-to-weight ratio. Compared to standard stainless steel flanges, they provide nearly double the yield strength, allowing for reduced wall thickness and cost savings in large-scale projects. This makes them an efficient choice for heavy industrial and structural engineering applications.
Corrosion resistance is another major benefit. These duplex flanges resist pitting, crevice corrosion, and stress corrosion cracking in environments containing chlorides, acids, and seawater. Their performance in offshore platforms, chemical processing equipment, and desalination plants ensures long-term reliability and reduced maintenance costs.
Durability and long service life further enhance their cost efficiency. Duplex Steel UNS S32205 Flanges maintain structural integrity even in cyclic loading conditions and fluctuating temperatures. Their resistance to erosion and abrasion makes them suitable for pipelines carrying abrasive fluids and gases. For industries seeking dependable performance with reduced lifecycle costs, this grade offers a balanced and practical solution.
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In the offshore oil and gas sector, Duplex Steel UNS S32205 Flanges Manufacturers supply high-strength flanges used in subsea pipelines, risers, and processing modules exposed to seawater and high pressure. The material’s resistance to chloride-induced corrosion ensures long-term operational safety in marine environments.
Within chemical processing and petrochemical plants, Duplex Steel UNS S32205 Flanges Suppliers provide corrosion-resistant flanges for reactors, heat exchangers, and storage systems handling aggressive chemicals. Their enhanced resistance to pitting and stress corrosion cracking supports reliable performance in acidic and chloride-rich media.
For large infrastructure and industrial fabrication projects, Duplex Steel UNS S32205 Flanges Stockists maintain ready inventory of slip-on, weld neck, blind, and threaded flanges required for piping systems, structural frameworks, and pressure equipment assemblies. Immediate availability supports project timelines in refineries, power plants, and water treatment facilities.
In global engineering and EPC projects, Duplex Steel UNS S32205 Flanges Exporters deliver certified flanges to international markets for use in desalination plants, LNG terminals, and high-pressure piping systems. Strict quality control, material traceability, and compliance with global standards ensure consistent product performance across borders.
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Duplex Steel UNS S32205 Flanges are commonly manufactured in accordance with ASTM A182 for forged or rolled alloy and stainless steel pipe flanges and forged fittings for high-temperature service. The corresponding ASME specification is ASME SA182, which covers material requirements for pressure vessel and piping applications. These standards define chemical composition limits, mechanical properties, heat treatment conditions, and testing requirements. Compliance with ASTM and ASME ensures that Duplex Steel UNS S32205 Flanges meet strict criteria for use in high-pressure pipelines, boilers, and structural systems operating in demanding industrial environments.
Steel products such as bars, pipes, tubes, plates, sheets, coils, and flanges are classified under internationally recognized standards including ASTM, ASME, EN, DIN, JIS, and ISO. ASTM and ASME standards are widely used in North America and the Middle East for pressure equipment and piping systems. EN and DIN standards govern European material specifications, while JIS applies to Japanese industrial standards. ISO provides global quality and testing frameworks that ensure uniformity across regions. Duplex Steel UNS S32205 is identified by its Unified Numbering System designation and equivalent EN grade 1.4462, enabling engineers and procurement teams to specify compatible materials for industrial fabrication, structural engineering, and critical process systems worldwide.
Steel Icon Stainless Pvt. Ltd. is one of the leading manufacturers & suppliers of Duplex steel S32205 Pipe Flanges Trader, Duplex S32205 Industrial Flanges, Duplex S32205 Reducing Flanges, Largest Stockholder of Duplex steel S32205 Flanges in India, Ready Stock of S32205 Duplex Flange, Duplex S32205 SWRF Flanges at the best price in India
Request Latest Price & Stock Availability| Standards | GOST Flange, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092, BS, BS4504, BS 10, EN-1092, DIN, ANSI, ASME, DIN, MSS S44, ISO70051, ANSI/ASME B16.5, ASME/ANSI B16.5/16.36/16.47A/16.47B, B16.47 Series A & B, B16.48, EN |
|---|---|
| Pressure Rating ANSI | Class 1500, Class 150, Class 900, Class 2500, Class 300, Class 600, |
| Pressure Calculation in DIN | 10Bar, 16Bar, 25Bar, 40Bar, 6Bar, / PN16, PN64, PN40, PN25, PN10, PN6 |
| JIS | 16 K, 20 K, 5K, 10 K, 40 K, 63 K, 30 K, |
| UNI | 10Bar 16Bar 6Bar 25Bar 40Bar |
| EN | 6Bar 25Bar 40Bar 10Bar 16Bar |
| Most common Types | Threaded / Screwed / Forged / Plate |
| Production technique |
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| Shapes and Types we produce | Large Male-Female (LMF), Ring Type Joint (RTJ), Flat Face (FF), Small Tongue, Small Male-Female (SMF),Raised Face (RF), Large Tongue & Groove, Groove, Lap-Joint Face (LJF) |
| Test | Direct-reading Spectrograph, Magnetic particle detector, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector |
| Equipment | Pushing Machine, Press machine, Bending machine, Sand-blasting machine, electric bevelling machine etc |
| S32205 | C | N | P | Si | Mn | Mo | Fe | Cr | S | Ni |
|---|---|---|---|---|---|---|---|---|---|---|
| 1.0 | 0.03 | 0.02 | 2.0 | 3.0 - 3.5 | 22.0 - 23.0 | 0.03 | 4.5 - 6.5 | 0.14 - 0.2 | Bal |
| S32205 | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
|---|---|---|---|---|---|
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi - 80000 , MPa - 550 | Psi - 116000 , MPa - 800 | 15 % |
