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Address - Plot No.1467, Kalamboli, Navi Mumbai - 410218

DUPLEX STEEL PIPE

Duplex Steel Pipes are high-strength stainless steel pipes designed for excellent corrosion resistance, superior mechanical properties, and outstanding resistance to stress corrosion cracking. With a balanced austenitic–ferritic microstructure, these pipes perform reliably in high-pressure and highly corrosive service environments.

Duplex Steel Pipes are manufactured in seamless and welded forms and are extensively used in oil & gas, offshore platforms, chemical processing plants, marine systems, power generation, and pressure piping applications where durability and long service life are essential.

Duplex Steel Pipes are available in standard duplex grades to suit diverse operating conditions. The most commonly supplied grades include Duplex S31803 (UNS S31803) and Duplex S32205 (UNS S32205), known for their excellent resistance to pitting and crevice corrosion, high yield strength, and superior weldability.

Duplex Steel S31803 Pipe Duplex Steel S32205 Pipe

Duplex Steel Pipe Manufacturer in India | Duplex S31803 & S32205 Pipe Supplier

Applications of Duplex Steel Pipes

● Oil & Gas Pipelines and Offshore Installations
● Chemical & Petrochemical Processing Plants
● Pressure Piping & Heat Exchanger Systems
● Marine, Seawater & Desalination Applications
● Power Generation & Energy Industries
● Pulp & Paper and Fertilizer Plants

Specification Table of Duplex Steel Pipe

Standard ASTM A790, ASTM A928
Outside Diameter 6 NB to 600 NB (Custom sizes available)
Wall Thickness SCH 10, SCH 20, SCH 40, SCH 80, SCH 160
Type Seamless / Welded / EFW
Surface Finish Pickled, Annealed, Polished
End Plain End / Beveled End

Duplex Steel Pipe Grades (Sub-Products)

● Duplex S31803 – High strength and excellent corrosion resistance, widely used in pressure piping and industrial applications
● Duplex S32205 – Improved resistance to pitting, crevice corrosion, and stress corrosion cracking in aggressive environments

Mechanical Properties of Duplex Steel Pipes (Typical)

Grade Yield Strength (MPa) Tensile Strength (MPa) Elongation %
Duplex S31803 450 620 25
Duplex S32205 450 620 25