2205 Duplex Stainless Steel Wire | High Strength Corrosion Resistant Alloy | Wisuno

2205 Duplex Stainless Steel Wire – Condensed Summary
General

• Duplex (austenitic-ferritic) structure.

• Combines high strength (yield strength approximately twice that of conventional austenitic grades like 304 and 316) with excellent corrosion resistance.

• High Cr, Mo and N content provides superior resistance to chloride stress corrosion cracking, pitting and crevice corrosion.

Chemical Composition (wt%)

• C: ≤0.03

• Si: ≤1.0

• Mn: ≤2.0

• P: ≤0.03

• S: ≤0.02

• Ni: 4.5–6.5

• Cr: 21–23

• Mo: 2.5–3.5

Fine Wire Diameter Range

• 0.020–0.049 mm, tolerance +0.002 / −0.001 mm, max ovality 0.001 mm

• 0.050–0.074 mm, tolerance ±0.002 mm, max ovality 0.002 mm

• 0.075–0.089 mm, tolerance ±0.002 mm, max ovality 0.002 mm

• 0.090–0.109 mm, tolerance +0.003 / −0.002 mm, max ovality 0.002 mm

Core Characteristics of 2205

• High strength and excellent resistance to stress corrosion cracking.

• Duplex structure, strength approximately twice that of 316.

• Suitable for high-concentration chloride environments.

Typical Applications

• Oil & Gas: downhole tools (safety valves, packers, sand screens), wire ropes, subsea connectors, wellhead equipment, coiled tubing.

• Marine Engineering: mooring cables, seawater piping, pumps and valves, submarine and ship components, offshore wind cooling systems.

• Chemical Processing: heat exchangers, pressure vessels, reactors, piping for chlorides and H2S, agitators, scrubbers, FGD absorbers.

• Bridge & Construction: prestressed strands, suspension cables, rebar, structural connectors.

• Pulp & Paper: pressure screens, pulper rotors, digesters, black liquor evaporators.

• Environmental & Water Treatment: seawater desalination high-pressure piping, FGD spray layers, wastewater agitators.

• Energy: nuclear seawater piping, thermal power FGD and circulating water, hydropower components.

• Food & Pharmaceutical: brine pipelines, salt evaporation equipment, food conveying pipes.

• Industrial Raw Materials: fasteners, springs, welding wire, wire mesh.

• Emerging: high-pressure hydrogen storage, deep-sea mining lifting systems, 3D printing feedstock.

Wire is supplied by Wisuno Special Materials Technology (Nanjing) Co., Ltd. For grade confirmation, diameter availability, and documentation requirements, please contact Wisuno, or review our stainless steel wire range and the duplex 2205 wire options alongside our other austenitic grades.