Size Range:Outer Diameter (OD) 12 mm – 762 mm; Wall Thickness (WT) 1.5 mm – 120 mm
Length: up to 18m (customized available)
Grades:G115, T/P11, T/P12, T/P22, T/P23, T/P24, T/P5, T/P9, T/P91, T/P92; 12Cr1MoVG / 15CrMoG, 10CrMo5-5, 13CrMo4-5, 10CrMo9-10, 7CrWVMoNb9-6, 7CrMoVTiB10-10, X10CrMoVNb9-1, X10CrWMoVNb9-2, X11CrMo5+1/NT, X11CrMo9-1+1/NT
Standards: ASTM,EN, JIS
Pipe Ends: Plain End
Performance:
-High creep rupture strength
-Excellent oxidation and corrosion resistance at elevated temperatures
-Suitable for ultra-supercritical power plants, refineries, and high-pressure steam services
Surface Protection:Mill Finish (As-Rolled / Black Finish), Pickling & Passivation, Bright Annealing (BA), Polishing (Mechanical / Satin / Mirror), Coating,etc.
Delivery Options: Bundled with steel strips, plastic end caps, wooden cases, or plywood boxes (on request), bracket packaging
Customization: Available upon request (sizes, grades, surface finish, and end connections)
Applications: Superheater tubes, Reheater tubes, Main steam pipes , Pipelines, Header pipes, Petrochemical furnace tubes ,Heat exchanger tubes, Ultra-supercritical power plant main steam lines, Superheater and reheater outlet headers, high-temperature steam lines, refinery high-pressure piping
Third Party Inspection: Final inspection such as SGS, BV, TUV, etc.
ZC Steel supplies high-performance Duplex and Super Duplex Steel Pipes, designed for applications requiring exceptional corrosion resistance, high strength, and durability. With a balanced microstructure of austenite and ferrite, duplex steels combine the toughness of austenitic stainless steels with the strength and stress corrosion resistance of ferritic grades.
Our duplex pipes are manufactured to ASTM, ASME, API, and ISO standards, with popular grades such as UNS S31803 (2205), UNS S32750 (2507), and UNS S32760. They are ideal for service in harsh chloride-rich, sour service, and offshore environments, offering superior resistance to pitting, crevice corrosion, and stress corrosion cracking.
Widely applied in the oil & gas industry, offshore platforms, subsea pipelines, desalination plants, chemical processing, and marine engineering, our Duplex and Super Duplex Steel Pipes ensure long service life and cost efficiency for critical projects.
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