2205 Stainless steel plate

1. Mechanical Properties
- Tensile Strength: 620-850MPa (far exceeding 304 stainless steel's 515MPa and 316L's 485MPa)
- Yield Strength: ≥450MPa (more than twice that of 304 stainless steel)
- Elongation: ≥25%, Reduction of Area: ≥45%
- Hardness: HB≤290, HRB≤100 (combining high strength with excellent toughness)
- Operating Temperature: -50℃ ~ 300℃ (no brittleness at low temperatures, strong high-temperature stability)
2. Corrosion Resistance

- Pitting Resistance Equivalent Number (PREN): ≥34 (much higher than 316L's 25), excellent resistance to pitting and crevice corrosion
- Corrosion Resistance: Tolerates corrosion from harsh media such as seawater, chloride solutions, organic acids (acetic acid, citric acid), inorganic acids (sulfuric acid, nitric acid), and alkaline solutions; suitable for highly corrosive environments
2205 Duplex Stainless Steel Sheet - Core Details

I. Basic Information

- Product Name: 2205 Duplex Stainless Steel Sheet
- Executive Standards: ASTM A240/A480, ASME SA240, EN 10088-2, JIS G4305, GB/T 24511
- Material Grades: UNS S31803, EN 1.4462, SUS 2205
- Delivery Condition: Solution Annealed + Pickled & Passivated, no oxide scale on the surface, uniform and stable state
II. Key Specification Parameters
Item Detailed Specifications 
Thickness Range 0.5mm - 30mm (regular specifications in stock; customization available for rolling above 30mm) 
Width Range 1000mm, 1219mm, 1500mm, 2000mm (slitting, leveling, and custom special widths available upon request) 
Length Range 2000mm, 2438mm, 3000mm, 6000mm (custom cutting supported, minimum cutting unit: 100mm) 
Surface Finish 2B (Cold-rolled matte, suitable for industrial equipment), BA (Cold-rolled bright, suitable for decorative/food machinery), No.1 (Hot-rolled pickled, suitable for structural components), No.4 (Brushed finish, suitable for architectural decoration), Hairline (Fine brushed, suitable for high-end equipment enclosures) 
Sheet Precision Thickness tolerance: ±0.02mm (cold-rolled) / ±0.1mm (hot-rolled); dimensional deviation complies with ASTM A480 Class B standard 
Weight Calculation Theoretical weight (kg) = Thickness (mm) × Width (m) × Length (m) × 7.85 (density g/cm³) 
III. Core Performance Advantages
1. Mechanical Properties
- Tensile Strength: 620-850MPa (far exceeding 304 stainless steel's 515MPa and 316L's 485MPa)
- Yield Strength: ≥450MPa (more than twice that of 304 stainless steel)
- Elongation: ≥25%, Reduction of Area: ≥45%
- Hardness: HB≤290, HRB≤100 (combining high strength with excellent toughness)
- Operating Temperature: -50℃ ~ 300℃ (no brittleness at low temperatures, strong high-temperature stability)
2. Corrosion Resistance
- Pitting Resistance Equivalent Number (PREN): ≥34 (much higher than 316L's 25), excellent resistance to pitting and crevice corrosion
- Corrosion Resistance: Tolerates corrosion from harsh media such as seawater, chloride solutions, organic acids (acetic acid, citric acid), inorganic acids (sulfuric acid, nitric acid), and alkaline solutions; suitable for highly corrosive environments
- Stress Corrosion Cracking (SCC) Resistance: Outstanding performance in chloride ion environments, solving the stress corrosion problem of traditional austenitic stainless steel
- Erosion-Corrosion Resistance: Duplex structure combines hardness and toughness, with excellent resistance to erosion and erosion-corrosion
3. Processing Performance
- Weldability: Can be welded by conventional methods such as arc welding, argon arc welding, and gas shielded welding; no solution annealing required after welding (for thin sheets), and joint strength is close to that of the base metal
- Formability: Good cold working performance, capable of bending, stamping, stretching, etc.; no intermediate annealing required when deformation is ≤30%
- Machinability: Superior to 304 and 316L stainless steel, with high cutting efficiency and low tool wear
IV. Applicable Industries & Scenarios
- Marine Engineering: Offshore platform structural components, seawater desalination equipment, ship hull plates, port terminal anti-collision facilities, subsea pipelines
- Petrochemical Industry: Downhole equipment for oil and gas extraction, chemical reactors, storage tanks, transmission pipelines, acid-alkali treatment equipment
- Water Treatment: Sewage treatment equipment, tap water pipelines, reverse osmosis membrane modules, brine treatment systems
- Construction Industry: High-rise building exterior wall cladding, bridge structural components, doors and windows of coastal buildings, decorative sheets
- Mechanical Manufacturing: Corrosion-resistant pumps and valves, compressor parts, medical devices, food processing equipment
- Other Fields: Nuclear power equipment, papermaking machinery, desulfurization and denitrification equipment, new energy (wind power, photovoltaic) brackets
V. Quality Certification & Testing
- Certification System: ISO 9001 Quality Management System Certification, CE Certification, API 5L Certification (for oil and gas industry), SGS/BV Third-Party Test Reports
- Testing Items: Chemical composition analysis (spectral detection), mechanical property testing (tensile, bending, impact tests), corrosion resistance testing (pitting, salt spray tests), non-destructive testing (UT ultrasonic testing, MT magnetic particle testing), surface quality inspection
- Quality Assurance: Each batch of products is accompanied by a Mill Test Certificate (MTC), traceable to raw material heat number, production process, and test data
VI. Customization Services & Supply Guarantee
- Customization Options:
- Dimensional Customization: Custom cutting of special thickness, width, and length
- Surface Customization: Special surface finishes, sandblasting, film coating, printing, etc.
- Processing Customization: Bending, stamping, welding, drilling, beveling
- Minimum Order Quantity (MOQ): 100kg for regular specifications; 500kg for customized specifications
- Delivery Cycle: 3-7 working days for in-stock products; 15-25 working days for customized products (adjusted according to order quantity)
- Packaging Method: Export standard packaging (waterproof kraft paper + plywood pallets, or wooden boxes/wrap film packaging upon request), marked with product information, moisture-proof signs, and anti-collision signs
- Logistics Services: Supports sea freight (FCL/LCL), air freight, and land transportation; deliverable to major ports and destinations worldwide
VII. Product Advantage Summary
1. Perfect Balance of Strength and Corrosion Resistance: Combines the corrosion resistance of austenitic stainless steel with the high strength of ferritic stainless steel, reducing material usage and lowering costs
2. Significant Cost Advantage: 30%-50% lower price than super austenitic stainless steel (e.g., 904L) with outstanding cost-performance ratio
3. Wide Applicability: Covers harsh environments across multiple industries, reducing material selection complexity
4. Long-Term Stability: Long service life, low maintenance costs, and reduced total life cycle costs