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Stainless Duplex Pipe
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Stainless Duplex Pipe is a special type of stainless steel that offers high durability and corrosion resistance. Its duplex structure contains a mixture of austenitic and ferritic phases, which gives it excellent mechanical properties and high wear resistance. Stainless duplex pipes are preferred especially in demanding industrial applications such as chemical, petrochemical, energy, and marine sectors. While providing reliable performance under high temperature and pressure conditions, they are also resistant to corrosion. In addition, their lightweight structure and high tensile strength provide design flexibility and cost advantages. Stainless duplex pipes are an ideal choice for industrial systems seeking a long-lasting and reliable solution.
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Key Features
- High Mechanical Strength: Offers higher tensile and yield strength compared with standard austenitic stainless steels.
- Superior Corrosion Resistance: Shows high resistance to pitting, crevice, and stress corrosion cracking.
- Seawater Resistant: Can be used safely in salt water and chloride-rich environments.
- Stainless Duplex Structure: Combines the advantages of austenitic and ferritic microstructures.
- High Pressure Performance: Provides reliable use in heavy-duty industrial applications.
- Weldable and Machinable: Suitable for industrial production and assembly processes.
- Wide Range of Applications: Preferred in the oil, natural gas, chemical, energy, marine, and water treatment sectors.
- Long Service Life: Maintains durability for many years even under harsh operating conditions.
- Low Life Cycle Cost: Reduces operating costs thanks to long service life and low maintenance requirements.
- Complies with International Standards: Production options are available in accordance with ASTM A790, ASTM A789, EN 10217-7, and EN 10216-5.
- Various Size Options: Can be supplied in different diameters and wall thicknesses with seamless or welded production.
Use Cases
- Oil and Gas Industry: In onshore and offshore pipelines and process facilities.
- Petrochemical Plants: In high-pressure systems carrying corrosive fluids.
- Chemical Industry: In transfer lines for acids, alkalis, and aggressive chemicals.
- Marine and Shipbuilding: In seawater piping systems and ship equipment.
- Water Treatment and Desalination Plants: In salt water and seawater treatment systems.
- Power Plants: In cooling water, steam, and process lines.
- Pulp and Paper Industry: In chemical process and production lines.
- Mining Industry: In abrasive and corrosive fluid systems.
- Food and Beverage Industry: In hygienic process applications requiring high strength.
- Industrial Process Plants: In all applications requiring high pressure and high corrosion resistance.
Specifications
- Product Type
- Stainless Duplex Pipe
- Material Grades
- Duplex 2205 (UNS S32205 / S31803), Super Duplex 2507 (UNS S32750)
- Production Type
- Seamless or Welded
- Outer Diameter
- 6 mm – 610 mm (depending on model)
- Wall Thickness
- Sch 5S – Sch XXS
- Length
- 6 m, 6.1 m or custom length
- Operating Temperature
- -50°C to +300°C (may vary depending on application)
- Surface Finish
- Annealed, Pickled, Polished
- Standards
- ASTM A790, ASTM A789, EN 10217-7, EN 10216-5
- Certificates
- EN 10204 3.1 (optional 3.2)
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