2205 Stainless Steel Plate & Coil: Duplex (Austenitic-Ferritic) Corrosion-Resistant Plate/Coil

What is 2205 Stainless Steel Plate & Coil?

2205 stainless steel plate & coil is a classic duplex stainless steel, composed of equal proportions of austenite and ferrite, integrating the corrosion resistance of austenitic steel and the strength of ferritic steel, suitable for harsh corrosive industrial environments.

Equivalent Grades (Horizontal)

UNS: S31803 | JIS: SUS2205 | GB: 022Cr22Ni5Mo3N | EN: X2CrNiMoN22-5-3 | W.Nr.: 1.4462

Chemical Composition (wt%, Horizontal)

C: ≤0.03 | Si: ≤1.00 | Mn: ≤2.00 | P: ≤0.030 | S: ≤0.020 | Cr: 21.00-23.00 | Ni: 4.50-6.50 | Mo: 2.50-3.50 | N: 0.08-0.20 | Fe: Balance

Key Properties (20°C, Annealed, Horizontal)

Density: 7.80g/cm³ | Melting Point: 1400-1450°C | Tensile Strength: ≥620N/mm² | Yield Strength: ≥450N/mm² | Elongation: ≥25% | Hardness: ≤290HB

Core Characteristics

• Dual-phase structure advantage: Equal austenite-ferrite ratio, balancing strength, toughness and corrosion resistance • Superior pitting/crevice corrosion resistance: Resists chloride ion corrosion, suitable for seawater and high-chloride media • High strength: Yield strength twice that of 304/316, reducing material thickness and cost in structural applications • Wide industrial application: Used in marine engineering, desalination, petrochemical and chemical processing equipment

2205 vs 316L Stainless Steel Plate & Coil (Horizontal)

Alloy Type: 2205 (Duplex) | 316L (Austenitic) | Yield Strength: 2205 (≥450N/mm²) | 316L (≥170N/mm²) | Chloride Resistance: 2205 (Superior) | 316L (Good) | Strength: 2205 (High) | 316L (Medium)

 

Stainless Steel Suppliers

If you have project requirements for stainless steel, we welcome your order. GNEE has a large inventory of popular products for you to choose from. It can be processed into various practical product forms, including plates, coils, tubes, bars, wires, etc. For detailed chemical composition information and free samples, please contact our factory immediately. We offer competitive prices and excellent service.Email: info@gneestainless.com

 

Testing and Documentation: Factory test certificate, EN 10204 3.1, chemical report, mechanical report, destructive testing report, non-destructive testing report, PMI test report, visual inspection report, third-party inspection report, NABL certified laboratory report.
Packaging: Wooden crate packaging, bubble wrap packaging, steel strapping, or packaging according to customer requirements.