JIANGSU CHINA STEEL UNION INDUSTRIAL CO.,LTD.
江苏中钢联合实业有限公司
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Duplex 2205 Stainless Steel Coil, ASTM A789, 1500mm Width, Marine Grade
Duplex 2205 Stainless Steel Coil is a premium-grade material designed for industries requiring exceptional resistance to chloride-induced corrosion, high mechanical strength, and durability in aggressive environments. Compliant with ASTM A789, this duplex (austenitic-ferritic) steel coil combines the advantages of both austenitic and ferritic stainless steels, delivering 2x higher yield strength than standard 316L grades. With a standardized width of 1500mm and thickness ranging from 0.5mm to 12mm, it is ideal for marine, offshore, and chemical processing applications. The 2205 alloy’s balanced microstructure ensures resistance to stress corrosion cracking, pitting, and erosion, making it a top choice for seawater systems, oil rigs, and coastal infrastructure.
| Parameter | Details |
|---|---|
| Material | UNS S32205/S31803 (Duplex 2205) |
| Element Composition | Cr: 22-23%, Ni: 4.5-6.5%, Mo: 3-3.5%, Mn: ≤2%, N: 0.14-0.2%, Fe: Balance |
| Thickness | 0.5mm – 12mm (±0.05mm tolerance) |
| Width | 1500mm (standard), customizable up to 2500mm |
| Surface Finish | Annealed & Pickled (AP) or Cold-Rolled Bright (CRB) |
| Tensile Strength | 620 MPa (min) |
| Yield Strength | 450 MPa (min) |
| Elongation | 25% (min) |
| Certifications | ASTM A789, NACE MR0175, EN 10088-2, NORSOK MDS D45, PED 2014/68/EU |
| Applications | Seawater desalination plants, offshore platforms, chemical tankers, heat exchangers |
Competitive Advantages
Key Selling Points
| Industry | Use Cases |
|---|---|
| Marine & Offshore | Subsea pipelines, ship hulls, ballast tanks, offshore rig structural components. |
| Energy | Flue gas scrubbers, geothermal piping, LNG storage tanks. |
| Chemical Processing | Acid storage tanks, urea reactors, sulfuric acid condensers. |
| Water Treatment | Desalination evaporators, reverse osmosis membranes, brine heaters. |
| Construction | Bridges in coastal zones, harbor facades, tidal energy converters. |
FAQ:
Q: Are you a manufacturer or trading company?
A: We are a factory with 12 years of sales experience.
Q: Where is your factory located?
A: Our factory is located in Wuxi City, Jiangsu Province, China.
Q: How can I get samples?
A: There are always pre-production samples before mass production; there is always final inspection before shipment;
Q: What payment methods do you offer?
A: Accepted delivery terms: FOB, CFR, CIF, EXW, Express; Accepted payment currencies: USD, RMB; Accepted payment methods: T/T, L/C,
Credit Card, Western Union, Cash;
Q: What are your after-sales service details?
A: 1) We provide necessary technical support to all customers, such as material properties and heat treatment data suggestions.
2) We provide suitable steel technical parameters for customers in Germany, the United States, Japan, the United Kingdom and other countries.