Core grade
2205 Duplex Stainless Steel: Properties, Strength & Corrosion Resistance
2205 duplex stainless steel combines austenitic and ferritic structures, delivering higher strength than 304/316 and excellent resistance to chloride stress corrosion cracking. Jinling supplies reliable 2205 duplex stainless steel sheet, coil, and plate for chemical processing, marine equipment, pressure vessels, and demanding industrial applications.
Forms selection
Available options
Choose stainless steel grade by product form and surface finish, including coil, sheet and plate, bar forms, tube and pipe, plus 8K mirror, AFP anti-fingerprint, No.4 brushed, hairline, 2B, and BA finishes for fabrication, architecture, appliance, marine, and industrial projects.
Specifications
High-strength duplex stainless steel for chloride service
| Item | Details |
|---|---|
| Grade / Standard | ASTM A240 S32205 / S31803; EN 1.4462; UNS Duplex 2205 |
| Chemical Composition | Cr 22.0-23.0%; Ni 4.5-6.5%; Mo 3.0-3.5%; N 0.14-0.20%; C <=0.03% |
| Mechanical Properties | Yield >=450 MPa; Tensile >=655 MPa; Elongation >=25% for solution-annealed plate/sheet |
| Corrosion Resistance | Excellent resistance to chloride stress corrosion cracking, pitting, crevice corrosion, and marine service |
| Available Forms | Sheet & plate, coil, tube & pipe, bar forms and project-driven cut sizes |
| Available Finishes | 2B, No.1 / HRAP, pickled, passivated, No.4, hairline and project-specific surface preparation |
| Typical Applications | Chemical processing, desalination, marine structures, pressure vessels, pulp & paper, oil and gas equipment |
| Buyer Note | Choose 2205 when chloride resistance and strength must reduce thickness, weight, or lifecycle replacement risk |
2205 duplex specification
Review 2205 duplex stainless steel specification data for high-strength, chloride-resistant sheet, plate, tube, pipe, and bar supply. 2205 combines ferritic and austenitic structures, offering much higher yield strength than 304/316 and strong resistance to stress corrosion cracking in marine, chemical, oil and gas, and water-treatment applications.
Typical values are for buyer comparison; final supply follows the order standard, mill origin, and MTC.
Why choose us
Jinling helps buyers source stainless steel grades with stable chemistry, reliable MTC documentation, matched product forms, and export-ready processing. From 304 and 316L to 430, 201, and 2205 duplex stainless steel, our grade supply supports coil, sheet, plate, bar, tube, surface finishing, and mixed-container delivery for global fabrication, architecture, appliance, marine, and industrial projects.
Prime mill material
Stable mill channels and MTC support help buyers secure reliable 304, 316L, 430, 201, and duplex stainless steel supply.
Grade-matched selection
Select stainless steel grade by corrosion resistance, strength, magnetism, welding performance, and project budget.
One-stop processing
Coil, sheet, plate, bar, tube, slitting, cut-to-length, polishing, film protection, and packing can be coordinated together.
Surface finish compatibility
2B, BA, No.4 brushed, hairline, 8K mirror, AFP, and PVD finishes are available for fabrication and visible design use.
Export-ready flexibility
Mixed grades, mixed forms, custom dimensions, protective packing, and container loading reduce sourcing complexity and lead time.