Chemical Composition (%) of 2305 Duplex Stainless Steel Plate
| C | Mn | Si | P | S | Cr | Cu | Ni | N |
| 0.03 | 2.5 | 1.0 | 0.04 | 0.03 | 21.5 -24.5 | 0.05-2.0 | 3.0-3.5 | 0.05-2.0 |
Mechanical Properties of 2305 Duplex Stainless Steel Plate
| Tensile Strength ksi (min) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (HB) MAX |
| 87 | 58 | 25 | 293 |
Physical Properties of 2305 Duplex Stainless Steel Plate
| Density at 68°F (20°C) | 0.28 lbm/in3 7800 kg/cm3 |
| Coefficient of Thermal Expansion | ax10-6°C-1 |
| 68°F to: 212°F (20 -100°C) | 13 |
| 68°F to 392°F (20 -200°C) | 13.5 |
| 68°F to 572°F (20 -300°C) | 14 |
| Thermal Conductivity | W.m-1.K-1 |
| at 68°F (20°C) | 17 |
| at 212°F (100°C) | 18 |
| at 392°F (200°C) | 19 |
| at 572°F (300°C) | 20 |
| Electrical Resitivity | (μ_ cm) |
| at 68°F (20°C) | 80 |
| at 212°F (100°C) | 92 |
| at 392°F (200°C) | 100 |
| at 572°F (300°C) | 105 |
| Specific Heat | (Btu/lb/°F) |
| 32°F to: 212°F (20 -100°C) | 0.11 |
Alloy 2304 is a 23% chromium, 4% nickel, molybdenum-free duplex stainless steel. The Alloy 2304 has corrosion resistance properties similar to 316L. Furthermore, its mechanical properties, i.e., yield strength, are twice those of 304L/316L austenitic grades. This allows the designer to save weight, particularly for properly designed pressure vessel applications.
The alloy is particularly suitable for applications covering the -50°C/+300°C (-58°F/572°F) temperature range. Lower temperatures may also be considered but need some restrictions, particularly for welded structures.
With its duplex microstructure and low nickel and high chromium contents, the alloy has improved stress corrosion resistance properties compared to 304 and 316 austenitic grades.
2304 Duplex Stainless Steel Applications:
Duplex 2304 is generally used in the same applications in which Alloys 304 and 316L are used. Some examples of these applications include:
- Chloride containing environments
- Welded pipe systems within the Pulp and Paper, Chemical and Petrochemical, and Water Treatment industries
- Transportations
- Heat exchanger tubes
- Architecture, building, construction
- Pressure vessels
- Caustic solutions, organic acids
- Food industry
Equivalent Standards of 2304 Duplex Stainless Steel:
- ASTM/ASME: UNS S32304
- EURONORM: FeMi35Cr20Cu4Mo2
- DIN: 2.4660
If you are interested in other Stainless Steel Plates/Sheets, please click 302, 303, 304, 304L, 304H, 309, 309S, 310, 310S, 310H, 316, 316L, 317/317L, 317LMN, 321, 321H, 330, 347, 347H, 904L, 403, 405, 409, 410, 410S, 410/HT, 416, 416HT, 420, 422, 430, 440C, Duplex 2205, Duplex 2304, Duplex 2507.
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