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Special Stainless Steel 2205 Duplex (UNS S31803 / S32205 / 1.4462) plates and sheets are heavily specified in oil & gas exploration piping systems, chemical processing tankers, marine cargo holds, wastewater digestion tanks, and desalination plants. The balanced dual-phase microstructure gives 2205 outstanding mechanical capacity, enabling thinner gauge designs without compromising structural integrity or pitting resistance (PREN ≥ 34).
| Product Form | Thickness Range | Standard Width | Standard Length |
|---|---|---|---|
| Cold-Rolled Sheet (CR) | 0.5mm – 4.0mm | 1000mm / 1220mm / 1500mm | 2000mm / 2440mm / 3000mm |
| Hot-Rolled Plate (HR) | 4.0mm – 100.0mm | 1500mm / 2000mm / 2500mm | 6000mm / Cut-to-size |
| Strip / Coil | 0.3mm – 3.0mm | 10mm – 1250mm | Continuous Coil / Customized |
| Element | Cr | Ni | Mo | N | C | Mn | Si | P / S | Fe |
|---|---|---|---|---|---|---|---|---|---|
| Min. | 22.0 | 4.50 | 3.00 | 0.14 | - | - | - | - | Bal. |
| Max. | 23.0 | 6.50 | 3.50 | 0.20 | 0.030 | 2.00 | 1.00 | 0.030 / 0.020 | Bal. |
| Tensile Strength Rm (MPa) | Yield Strength Rp0.2 (MPa) | Elongation A5 (%) | Hardness (HB) | Density (g/cm³) | Melting Range (°C) |
|---|---|---|---|---|---|
| ≥ 655 | ≥ 450 | ≥ 25 | ≤ 293 | 7.80 | 1380 – 1460 |