S32205 (2205) Duplex stainless steel is a high performance alloy with a unique combination of excellent mechanical properties and exceptional corrosion resistance. The following introduces the main performance characteristics of S32205 stainless steel:

Corrosion resistance: S32205 has excellent resistance to general corrosion, pitting corrosion, crevice corrosion and stress corrosion cracking.
The high chromium (22-23%) and molybdenum (3-3.5%) content in S32205 provides excellent protection from a variety of corrosive environments, including seawater, chlorides, acids and various chemicals.
This enhanced corrosion resistance makes S32205 ideal for applications in harsh, corrosive environments such as offshore, marine and chemical process industries.

Mechanical Properties: S32205 has high strength and toughness, with typical tensile strength of 620 to 860 MPa and yield strength of 450 to 650 MPa.
The dual-phase microstructure consisting of balanced austenite-ferrite phases contributes to the material’s excellent mechanical properties.
S32205 retains good impact toughness even at low temperatures, making it suitable for applications where impact resistance is critical.

Fatigue and Wear Resistance: S32205’s dual-phase microstructure and high strength provide excellent fatigue and wear resistance, making it suitable for parts subject to cyclic loading or high stress applications.
This performance characteristic is particularly beneficial in applications where components such as movable bridges are particularly subject to repeated stress and wear.

Thermal and Low Temperature Performance: S32205 maintains its mechanical properties and corrosion resistance at both high and low temperatures, allowing it to be used in both low and high temperature environments.
The material’s thermal stability and resistance to brittleness make it suitable for applications in the petrochemical, power generation and liquefied natural gas (LNG) industries.

Solderability and Fabrication: S32205 is considered weldable, although it requires more careful control of welding parameters to maintain the required ferrite-austenite balance and prevent the formation of harmful phases.
With appropriate welding techniques, S32205 can be fabricated into a variety of components and structures, including tanks, pipes, and other process equipment.