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Girgaon, Mumbai - 400004
Duplex Steel UNS S32205 Welded Pipes
What is Duplex Steel UNS S32205 Welded Pipes?
Duplex Steel UNS S32205 Welded Pipes are high-strength duplex stainless steel pipes designed for applications requiring excellent corrosion resistance, mechanical strength, and reliable performance in demanding service conditions. UNS S32205, commonly known as Duplex 2205, has a balanced austenitic-ferritic microstructure that combines the beneficial properties of both stainless steel structures.
The chemical composition of UNS S32205 provides good resistance to general corrosion, pitting, crevice corrosion and chloride-induced stress corrosion cracking. Its higher yield strength compared with conventional austenitic stainless steel grades makes Duplex Steel UNS S32205 Welded Pipes suitable for pressure, process and fluid-handling systems where both strength and corrosion resistance are important.
Duplex Steel UNS S32205 Welded Pipes are manufactured by forming stainless steel plate, sheet, or strip into a cylindrical shape and joining the longitudinal edges through a controlled welding process. They are available in different outside diameters, wall thicknesses, schedules and lengths to meet specific piping and project requirements.
Kamal Steels is a Duplex Steel UNS S32205 Welded Pipes Manufacturer and Exporter in India, supplying welded pipes for oil and gas, petrochemical, chemical processing, marine, power generation, water treatment, pulp and paper and other industrial applications. Pipes can be supplied with the required testing, inspection, material certificates and documentation according to customer and project specifications.
Table of Contents
- Duplex Steel UNS S32205 Welded Pipe Specifications
- UNS S32205 Welded Pipe Weight Chart
- UNS S32205 Welded Pipe Size Range
- ASTM A790 UNS S32205 Welded Pipe
- UNS S32205 vs UNS S31803 Welded Pipe
- Chemical Composition of UNS S32205 Welded Pipe
- Mechanical Properties of UNS S32205 Welded Pipe
- Features of UNS S32205 Welded Pipes
- Duplex Steel UNS S32205 Welded Pipe Applications
- Industries Using UNS S32205 Welded Pipes
- Frequently Asked Questions
Duplex Steel UNS S32205 Welded Pipe Specifications
Kamal Steels manufactures and stocks Duplex Steel UNS S32205 Welded Pipes in accordance with internationally recognized ASTM, ASME, and EN standards. Our welded pipes are manufactured using premium-quality duplex stainless steel plates with advanced forming and automatic welding processes to achieve excellent weld integrity, dimensional accuracy, and long-term corrosion resistance. Available in various diameters, wall thicknesses, schedules, and custom lengths, our pipes are designed to meet the demanding requirements of offshore, marine, chemical processing, petrochemical, and industrial piping systems.
| Product | Duplex Steel UNS S32205 Welded Pipes |
|---|---|
| Material Grade | UNS S32205 / WNR 1.4462 |
| Manufacturing Standard | ASTM A790, ASTM A928, ASME SA790 |
| Pipe Type | Welded |
| Outside Diameter | ½" NB to 48" NB |
| Wall Thickness | SCH 5S to SCH XXS |
| Length | Single Random, Double Random, 6 Meter & Custom Cut Lengths |
| End Type | Plain End, Bevelled End, Threaded End |
| Surface Finish | Annealed, Pickled, Polished |
| Certification | EN 10204 3.1 Mill Test Certificate |
UNS S32205 Welded Pipe Weight Chart
The weight of Duplex Steel UNS S32205 Welded Pipes depends on the outside diameter, wall thickness, pipe schedule and length. The weight chart is useful for estimating material requirements, transportation weight and approximate quantities for industrial piping projects.
The following table provides approximate weights for commonly used UNS S32205 Welded Pipe sizes. Actual pipe weight can vary depending on dimensional tolerances, wall thickness, manufacturing requirements and applicable standards.
| Nominal Pipe Size | Outside Diameter | Schedule | Wall Thickness | Approx. Weight (kg/m) |
|---|---|---|---|---|
| 1/2 Inch | 21.3 mm | Sch 40 | 2.77 mm | 1.27 |
| 1 Inch | 33.4 mm | Sch 40 | 3.38 mm | 2.52 |
| 2 Inch | 60.3 mm | Sch 40 | 3.91 mm | 5.59 |
| 3 Inch | 88.9 mm | Sch 40 | 5.49 mm | 11.57 |
| 4 Inch | 114.3 mm | Sch 40 | 6.02 mm | 16.43 |
| 6 Inch | 168.3 mm | Sch 40 | 7.11 mm | 28.26 |
| 8 Inch | 219.1 mm | Sch 40 | 8.18 mm | 42.55 |
For an exact UNS S32205 Welded Pipe weight calculation, the outside diameter, wall thickness, schedule and required pipe length should be specified. Kamal Steels can provide weight details based on the required dimensions and customer specifications.
UNS S32205 Welded Pipe Size Range
Duplex Steel UNS S32205 Welded Pipes are available in a wide range of nominal sizes, outside diameters, wall thicknesses and schedules. The required pipe dimensions are selected according to operating pressure, temperature, fluid service and piping design requirements.
Kamal Steels supplies UNS S32205 Welded Pipes in standard and customized dimensions for process piping, pressure applications, chemical processing, oil and gas, marine, power generation and other industrial services.
| Nominal Pipe Size | Outside Diameter | Common Schedules |
|---|---|---|
| 1/2 Inch | 21.3 mm | Sch 10, 40, 80 |
| 1 Inch | 33.4 mm | Sch 10, 40, 80 |
| 2 Inch | 60.3 mm | Sch 10, 40, 80, 160 |
| 3 Inch | 88.9 mm | Sch 10, 40, 80, 160 |
| 4 Inch | 114.3 mm | Sch 10, 40, 80, 160 |
| 6 Inch | 168.3 mm | Sch 10, 40, 40S, 80 |
| 8 Inch | 219.1 mm | Sch 10, 40, 40S, 80 |
Custom outside diameters, wall thicknesses and lengths may also be supplied depending on manufacturing capability, quantity, applicable standards and project specifications.
UNS S32205 Welded Pipe Size Range
Duplex Steel UNS S32205 Welded Pipes are available in a wide range of nominal sizes, outside diameters, wall thicknesses and schedules. The required pipe dimensions are selected according to operating pressure, temperature, fluid service and piping design requirements.
Kamal Steels supplies UNS S32205 Welded Pipes in standard and customized dimensions for process piping, pressure applications, chemical processing, oil and gas, marine, power generation and other industrial services.
| Nominal Pipe Size | Outside Diameter | Common Schedules |
|---|---|---|
| 1/2 Inch | 21.3 mm | Sch 10, 40, 80 |
| 1 Inch | 33.4 mm | Sch 10, 40, 80 |
| 2 Inch | 60.3 mm | Sch 10, 40, 80, 160 |
| 3 Inch | 88.9 mm | Sch 10, 40, 80, 160 |
| 4 Inch | 114.3 mm | Sch 10, 40, 80, 160 |
| 6 Inch | 168.3 mm | Sch 10, 40, 40S, 80 |
| 8 Inch | 219.1 mm | Sch 10, 40, 40S, 80 |
Custom outside diameters, wall thicknesses and lengths may also be supplied depending on manufacturing capability, quantity, applicable standards and project specifications.
Chemical Composition of Duplex Steel UNS S32205
The carefully controlled chemical composition of Duplex Steel UNS S32205 provides superior corrosion resistance, excellent weldability, and high mechanical strength. The balanced addition of chromium, nickel, molybdenum, and nitrogen enhances resistance to chloride-induced corrosion while maintaining outstanding structural stability.
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.03 Max |
| Silicon (Si) | 1.00 Max |
| Manganese (Mn) | 2.00 Max |
| Phosphorus (P) | 0.03 Max |
| Sulphur (S) | 0.02 Max |
| Chromium (Cr) | 22.0 – 23.0 |
| Nickel (Ni) | 4.5 – 6.5 |
| Molybdenum (Mo) | 3.0 – 3.5 |
| Nitrogen (N) | 0.14 – 0.20 |
| Iron (Fe) | Balance |
Mechanical Properties of Duplex Steel UNS S32205
Duplex Steel UNS S32205 Welded Pipes exhibit outstanding tensile strength, high yield strength, and excellent toughness, making them suitable for high-pressure process piping, offshore installations, and corrosive industrial environments where long-term structural reliability is essential.
| Property | Value |
|---|---|
| Tensile Strength | 620 MPa Minimum |
| Yield Strength (0.2% Offset) | 450 MPa Minimum |
| Elongation | 25% Minimum |
| Hardness | 290 HB Maximum |
Equivalent Grades of Duplex Steel UNS S32205
| Standard | Equivalent Grade |
|---|---|
| UNS | S32205 |
| Werkstoff | 1.4462 |
| EN | X2CrNiMoN22-5-3 |
| ASTM | A790 / A928 |
| ASME | SA790 |
Features of UNS S32205 Welded Pipes
Duplex Steel UNS S32205 Welded Pipes offer a combination of high mechanical strength and corrosion resistance, making them suitable for demanding industrial piping systems. The duplex austenitic-ferritic structure provides balanced properties for applications exposed to corrosive fluids, chlorides and pressure.
| Feature | Description |
|---|---|
| High Mechanical Strength | Provides higher strength than many conventional austenitic stainless steel grades. |
| Excellent Corrosion Resistance | Offers good resistance to general corrosion in demanding service environments. |
| Pitting Resistance | Provides good resistance to pitting and crevice corrosion in chloride-containing environments. |
| Stress Corrosion Resistance | Offers good resistance to chloride-induced stress corrosion cracking. |
| Duplex Microstructure | Combines austenitic and ferritic phases for a balance of strength and corrosion resistance. |
| Good Toughness | Provides suitable toughness for a wide range of industrial piping applications. |
| Wide Size Availability | Available in different diameters, wall thicknesses, schedules and lengths. |
| Long Service Life | Suitable for demanding applications where durability and corrosion resistance are required. |
Duplex Steel UNS S32205 Welded Pipe Applications
Duplex Steel UNS S32205 Welded Pipes are used in applications where high mechanical strength and resistance to corrosion are required. Their performance in chloride-containing and corrosive environments makes them suitable for process piping, fluid transfer and pressure applications across several industrial sectors.
| Application | Typical Use |
|---|---|
| Oil & Gas Piping | Process piping, production systems and fluid transfer lines |
| Offshore Piping | Seawater, utility, production and process piping systems |
| Chemical Processing | Corrosive chemical transfer and process piping |
| Petrochemical Plants | Process lines and corrosive fluid handling systems |
| Marine Systems | Seawater, cooling water and marine piping applications |
| Desalination Plants | Seawater intake and water treatment piping |
| Power Generation | Cooling water and auxiliary process piping |
| Heat Exchanger Systems | Corrosion-resistant fluid circulation and piping connections |
The required UNS S32205 Welded Pipe size, wall thickness, schedule and configuration depend on the operating pressure, temperature, fluid and applicable project specifications.
Industries Using UNS S32205 Welded Pipes
Duplex Steel UNS S32205 Welded Pipes are widely used across industries that require corrosion-resistant piping with high mechanical strength. The grade is particularly suitable for systems exposed to chlorides, seawater, process chemicals and other aggressive operating conditions.
| Industry | Typical Applications |
|---|---|
| Oil & Gas Industry | Production piping, process lines, offshore systems and fluid transfer |
| Petrochemical Industry | Corrosive process piping and chemical handling systems |
| Chemical Industry | Chemical processing, storage and transfer piping |
| Marine Industry | Seawater systems, marine piping and cooling systems |
| Desalination Industry | Seawater intake, treatment and distribution systems |
| Power Generation Industry | Cooling water and auxiliary piping systems |
| Water Treatment Industry | Corrosion-resistant water handling and treatment piping |
| Pulp & Paper Industry | Process piping exposed to corrosive chemicals and fluids |
| Engineering Industry | Industrial equipment, process piping and fluid-handling systems |
Kamal Steels is a Duplex Steel UNS S32205 Welded Pipes Manufacturer and Exporter in India, supplying pipes in required sizes, schedules, wall thicknesses and lengths for domestic and international industrial projects.
Frequently Asked Questions
Duplex Steel UNS S32205 Welded Pipes are high-strength stainless steel pipes manufactured by welding duplex stainless steel plates or coils. They offer excellent corrosion resistance, high mechanical strength, and reliable performance in demanding industrial environments.
These welded pipes are manufactured according to ASTM A790, ASTM A928, and ASME SA790 standards, ensuring superior weld quality, dimensional accuracy, and long-term performance.
They provide excellent resistance to pitting, crevice corrosion, chloride stress corrosion cracking, superior mechanical strength, excellent weldability, and long service life in aggressive industrial environments.
These pipes are widely used in offshore platforms, oil & gas processing, petrochemical plants, marine engineering, desalination plants, chemical processing industries, power generation facilities, and water treatment systems.
They are available from ½" NB to 48" NB in various schedules including SCH 5S, SCH 10S, SCH 40S, SCH 80S, XS, and XXS, with custom diameters and lengths available upon request.
Each pipe undergoes PMI Testing, Hydrostatic Testing, Radiographic Weld Examination, Ultrasonic Testing, Eddy Current Testing, Chemical Analysis, Mechanical Testing, and Dimensional Inspection before dispatch.
Yes. Their excellent resistance to chloride attack, seawater corrosion, and stress corrosion cracking makes them ideal for offshore structures, marine piping systems, and desalination plants.
Welded pipes are manufactured by forming and welding steel plates or coils, making them more economical and readily available in larger diameters. Seamless pipes are manufactured without a weld seam and are generally preferred for extremely high-pressure applications.
Yes. All pipes are supplied with EN 10204 3.1 Mill Test Certificates, complete material traceability, inspection reports, and third-party inspection certificates when requested.
Kamal Steels is a trusted manufacturer and stockist offering certified materials, advanced manufacturing, extensive ready stock, customized sizes, competitive pricing, strict quality control, complete documentation, and timely worldwide delivery for industrial piping projects.