Grafton Pipe Fittings offers an extensive range of Duplex Steel Pipes & Tubes that deliver superior strength, corrosion resistance, and durability, making them ideal for aggressive environments in the chemical, petrochemical, oil & gas, and marine industries. Manufactured in accordance with ASTM A789 for seamless and welded ferritic/austenitic stainless steel tubing and ASTM A790 for seamless and welded duplex stainless steel pipe, these products comply with stringent international standards to meet global demands.

Our Duplex Steel Pipes are primarily composed of a balanced microstructure of ferrite and austenite phases, offering twice the strength of standard austenitic stainless steels like 304 and 316. The key grades we supply include UNS S31803 and UNS S32205, with the latter offering improved corrosion resistance and enhanced mechanical properties. These tubes and pipes are highly resistant to chloride stress corrosion cracking, pitting, and crevice corrosion, which makes them particularly suitable for heat exchangers, offshore platforms, and pressure vessels.

These Duplex Stainless Steel Pipes exhibit excellent weldability and workability, allowing easy fabrication and installation in complex piping systems. Their superior strength-to-weight ratio contributes to reduced material cost and improved design flexibility, which is highly valued in structural and architectural applications.

With our advanced manufacturing capabilities and deep expertise, Grafton Pipe Fittings is recognized as a trusted manufacturer and exporter of high-performance Duplex Pipes & Tubes. Whether you require standard or custom sizes, our experienced team ensures timely delivery and adherence to the highest industry standards. The reliability, longevity, and resistance to extreme environments make our ASTM A789 Duplex Tubes and ASTM A790 Duplex Pipes a top choice across various industrial sectors.

Specification Of Titanium Pipes & Tubes

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