Girgaon, Mumbai - 400004
Kamal Steels is a leading Manufacturer and Stockist of Duplex Steel UNS S32205 Welded Tubes, offering premium-quality tubing solutions for offshore oil & gas, petrochemical, marine, desalination, chemical processing, pulp & paper and power generation industries. Manufactured from Duplex Stainless Steel UNS S32205 (WNR 1.4462), our welded tubes are produced in accordance with ASTM A789, ASTM A790, ASTM A928 and ASME SA789 standards, ensuring exceptional dimensional accuracy, superior corrosion resistance and outstanding mechanical strength. UNS S32205 is the improved version of S31803 with tighter control over chromium, molybdenum and nitrogen content, providing enhanced pitting resistance and more consistent corrosion performance in aggressive environments.
Our Duplex Steel UNS S32205 Welded Tubes are manufactured using premium-quality duplex stainless steel coils with advanced automatic welding technology, solution annealing, pickling, and precision finishing processes to achieve smooth weld integrity, excellent dimensional tolerances, and long service life. These welded tubes are widely used in heat exchangers, condensers, instrumentation systems, offshore platforms, seawater handling systems, pressure vessels, and process piping where superior strength and excellent resistance to chloride-induced corrosion are essential.
At Kamal Steels, we maintain a comprehensive inventory of ASTM A789 Duplex Steel UNS S32205 Welded Tubes in various outside diameters, wall thicknesses, schedules, and custom lengths to meet urgent domestic and international project requirements. Every tube undergoes rigorous quality inspections, including Positive Material Identification (PMI), Chemical Analysis, Mechanical Testing, Hydrostatic Testing, Eddy Current Testing, Ultrasonic Testing, Weld Integrity Testing, and Visual Inspection before dispatch. With certified quality, competitive pricing, export-standard packaging and prompt worldwide delivery, Kamal Steels has established itself as a trusted manufacturer and supplier of Duplex Steel UNS S32205 Welded Tubes for critical industrial applications.

Duplex Steel UNS S32205 Welded Tubes are widely recognized for their exceptional combination of high mechanical strength, outstanding corrosion resistance, and excellent durability in aggressive industrial environments. Manufactured from premium duplex stainless steel with a balanced austenitic-ferritic microstructure, these welded tubes provide nearly twice the yield strength of conventional stainless steels while offering superior resistance to chloride stress corrosion cracking, pitting, crevice corrosion, and general corrosion.
One of the major advantages of Duplex Steel UNS S32205 Welded Tubes is their excellent weldability, superior resistance to seawater corrosion, high-pressure capability, and extended service life. These tubes also provide outstanding fatigue strength, excellent impact toughness, and reduced maintenance costs, making them ideal for offshore oil & gas platforms, marine engineering, chemical processing plants, desalination systems, petrochemical industries, heat exchangers, and power generation facilities.
At Kamal Steels, we manufacture and supply premium-quality ASTM A789 Duplex Steel UNS S32205 Welded Tubes produced according to international quality standards. Every tube undergoes comprehensive quality inspections, including Mechanical Testing, Chemical Analysis, Positive Material Identification (PMI), Hydrostatic Testing, Eddy Current Testing, Ultrasonic Testing, Weld Integrity Testing, and Dimensional Inspection to ensure exceptional product quality, reliability, and complete customer satisfaction.
Kamal Steels manufactures and supplies Duplex Steel UNS S32205 Welded Tubes in accordance with internationally recognized ASTM and ASME standards. Manufactured from premium-quality Duplex Stainless Steel UNS S32205 (WNR 1.4462), these welded tubes offer exceptional mechanical strength, superior corrosion resistance, excellent weldability, and outstanding performance in chloride-containing and highly corrosive environments. Our Duplex Steel UNS S32205 Welded Tubes are available in various outside diameters, wall thicknesses, schedules, finishes, and custom lengths to meet the requirements of offshore oil & gas, petrochemical, marine, desalination, chemical processing, and power generation industries.
| Product | Duplex Steel UNS S32205 Welded Tubes |
|---|---|
| Material Grade | Duplex Stainless Steel UNS S32205 (WNR 1.4462) |
| Specifications | ASTM A789, ASTM A790, ASTM A928, ASME SA789, ASME SA790 |
| Tube Type | Welded |
| Outside Diameter | 6.35 mm to 219.10 mm (1/4" NB to 8" NB) |
| Wall Thickness | 0.5 mm to 12.7 mm (SCH 5S to SCH XXS) |
| Length | Single Random, Double Random, 6 Meter & Custom Cut Lengths |
| Surface Finish | Annealed, Pickled, Bright Annealed (BA), Polished |
| End Finish | Plain End, Beveled End, Threaded |
| Certification | EN 10204 3.1 / 3.2 Mill Test Certificate (MTC) |
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 22.00 – 23.00 |
| Nickel (Ni) | 4.50 – 6.50 |
| Molybdenum (Mo) | 3.00 – 3.50 |
| Nitrogen (N) | 0.14 – 0.20 |
| Manganese (Mn) | 2.00 Max |
| Silicon (Si) | 1.00 Max |
| Carbon (C) | 0.03 Max |
| Phosphorus (P) | 0.03 Max |
| Sulfur (S) | 0.02 Max |
| Iron (Fe) | Balance |
| Property | Value |
|---|---|
| Tensile Strength | 620 MPa Minimum |
| Yield Strength | 450 MPa Minimum |
| Elongation | 25% Minimum |
| Hardness | 290 HB Max |
| Density | 7.80 g/cm³ |
| Standard | Equivalent Grade |
|---|---|
| UNS | S32205 |
| Werkstoff No. | 1.4462 |
| EN | X2CrNiMoN22-5-3 |
| DIN | 1.4462 |
| AFNOR | Z3 CND22.05Az |
Duplex Steel UNS S32205 Welded Tubes are extensively used in industries operating under highly corrosive, high-pressure, and chloride-rich environments. Their exceptional combination of high mechanical strength, superior resistance to pitting, crevice corrosion, chloride stress corrosion cracking, and excellent weldability makes them one of the most reliable duplex stainless steel tubing solutions for demanding industrial applications. These welded tubes deliver outstanding durability, reduced maintenance, and long service life in aggressive operating conditions.
At Kamal Steels, every Duplex Steel UNS S32205 Welded Tube undergoes comprehensive inspection and testing to ensure compliance with ASTM, ASME, and customer specifications. Each tube is carefully inspected for chemical composition, dimensional accuracy, mechanical properties, weld integrity, and overall product quality before dispatch.
Kamal Steels follows international export packaging standards to ensure that Duplex Steel UNS S32205 Welded Tubes reach customers safely without damage during transportation and storage. Tubes are protected with plastic end caps, securely bundled, wrapped with protective materials, and packed in fumigated wooden boxes, export-quality crates, or pallets to prevent moisture, scratches, dents, and transit damage.
Each tube is permanently marked with the material grade, specification, size, schedule, heat number, manufacturer's identification, and batch details for complete material traceability. Every shipment is supplied with EN 10204 3.1/3.2 Mill Test Certificates, inspection reports, packing lists, commercial invoices, certificates of compliance, and third-party inspection certificates whenever requested, ensuring complete documentation for domestic and international industrial projects.
Kamal Steels is a trusted manufacturer, supplier, stockist, and exporter of Duplex Steel UNS S32205 Welded Tubes, supplying premium-quality duplex stainless steel tubing solutions for offshore oil & gas, petrochemical, marine, desalination, chemical processing, power generation, and other critical industrial applications. Manufactured according to ASTM and ASME standards, our welded tubes provide exceptional mechanical strength, outstanding corrosion resistance, excellent weld integrity, and reliable long-term performance in the most demanding service environments.
We maintain a comprehensive inventory of ASTM A789 Duplex Steel UNS S32205 Welded Tubes in various outside diameters, wall thicknesses, schedules, surface finishes, and custom lengths to meet urgent domestic and international project requirements. Every tube undergoes comprehensive quality inspections, including Positive Material Identification (PMI), Chemical Analysis, Mechanical Testing, Hydrostatic Testing, Eddy Current Testing, Ultrasonic Testing, Weld Integrity Testing, Dimensional Inspection, and Visual Inspection to ensure complete compliance with international quality standards and customer specifications.
With decades of manufacturing expertise, ready stock availability, competitive pricing, certified quality, export-standard packaging, and a strong global supply network, Kamal Steels has become the preferred manufacturer and supplier of Duplex Steel UNS S32205 Welded Tubes across international markets. Our commitment to quality, technical support, prompt delivery, and complete documentation enables us to provide dependable duplex stainless steel tubing solutions for critical industrial applications worldwide.
Duplex Steel UNS S32205 Welded Tubes are high-strength duplex stainless steel tubes manufactured using advanced welding processes. They provide excellent corrosion resistance, superior mechanical strength, and outstanding performance in aggressive industrial environments.
Our Duplex Steel UNS S32205 Welded Tubes are manufactured according to ASTM A789, ASTM A790, ASTM A928, ASME SA789, and ASME SA790 standards.
These welded tubes offer high mechanical strength, excellent resistance to chloride stress corrosion cracking, pitting, crevice corrosion, seawater corrosion, superior weldability, and long service life.
They are widely used in offshore oil & gas platforms, marine engineering, chemical processing plants, petrochemical industries, heat exchangers, desalination plants, power generation facilities, and seawater piping systems.
UNS S32205 is an enhanced version of UNS S31803 with tighter chemical composition limits, providing improved corrosion resistance and more consistent mechanical properties while both share the same EN grade 1.4462.
Each tube undergoes PMI Testing, Chemical Analysis, Mechanical Testing, Hydrostatic Testing, Ultrasonic Testing (UT), Eddy Current Testing (ECT), Weld Integrity Testing, Dimensional Inspection, and Visual Inspection.
Yes. Duplex Steel UNS S32205 offers excellent resistance to seawater corrosion, chloride-induced pitting, crevice corrosion, and stress corrosion cracking, making it ideal for offshore and marine service.
Yes. Every shipment includes EN 10204 3.1/3.2 Mill Test Certificates, inspection reports, complete material traceability, and third-party inspection certificates upon request.
Yes. Kamal Steels exports Duplex Steel UNS S32205 Welded Tubes worldwide with export-standard packaging, complete documentation, and timely international delivery.
Kamal Steels offers ASTM-compliant Duplex Steel UNS S32205 Welded Tubes with ready stock, certified quality, competitive pricing, stringent quality control, export-standard packaging, complete documentation, and dependable worldwide delivery for critical industrial applications.