Corrosion Resistance: Duplex pipes exhibit excellent corrosion resistance, particularly in aggressive environments such as chloride-containing solutions and marine environments. They outperform conventional stainless steels and are highly resistant to pitting, crevice corrosion, and stress corrosion cracking.

Strength and Toughness: Duplex pipes possess higher strength compared to austenitic stainless steels. This allows them to withstand higher pressures and temperatures, making them suitable for applications in challenging conditions. They also exhibit good toughness, providing resistance to impact and fatigue.

Duplex Structure: Duplex pipes have a unique microstructure consisting of roughly equal proportions of austenite and ferrite phases. This balanced composition contributes to their desirable combination of mechanical properties and corrosion resistance.

Weldability: Duplex pipes are generally weldable using appropriate welding techniques and consumables. However, it is crucial to ensure proper heat treatment and control during the welding process to maintain the desired microstructure and avoid the formation of harmful precipitates.

Applications: Duplex pipes find wide applications in various industries, including oil and gas, chemical processing, petrochemicals, desalination plants, pulp and paper, and offshore platforms. They are commonly used for transporting corrosive fluids, handling high-pressure systems, and in environments where high strength and corrosion resistance are essential.