The ‘duplex’ in the Duplex Steel 2205 Plates stands for the two types of microstructures composing the overall structure of the plates, the two classes being ferritic and austenitic. The physical combination drastically increases the yield strength and toughness of the alloy. Another distinct alteration is in the chemical composition of the plates, where the amount of chromium exceeds that of any other standard stainless steel grade at 22-23%. The enhancement in chromium is accompanied by the increment in other elements, such as 3-3.5% molybdenum and 4.5-6.5% nickel in the composition. The increment in the vital aspects grants the plate improved mechanical and chemical properties.
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Duplex steel plates of grade 2205 are an improved form of stainless steel with enhancement in properties such as strength. The toughness and the yield strength of the plates are almost double that of normal austenitic grades. The corrosion resistance displayed by the duplex steel of the grade in consideration is exceptional, with the plates being resistant not only against mild acids but also against strongly acid and oxidizing conditions. Pitted and crevice corrosion are both tackled by the plates effectively. Elevated temperatures and harsh conditions are known to cause stress corrosion in many austenitic stainless plates of steel. Still, with duplex steel, soaring temperatures don’t pose any form of problems on the plates, and they, therefore, excellently resist stress corrosion. All the chemical and physical properties of the plates, when coupled with the durability and stability they exhibit, make them an ideal choice for usage.
Accurate Metals and Alloys has been highly regarded as a steadily excelling firm known for distributing and formulating the duplex steel products such as the Duplex Steel 2205 Plates of superior quality. Their cost-effective nature accompanies the richness of quality characteristic of our products. The raw materials we employ for manufacturing are procured from trusted sources and tested before they are assembled through modern technological equipment.
Duplex Steel 2205 Plates are employed in various industries and equipment such as seawater applications, scrubbers, pulp and paper, biofuel plants, chemical processing, cargo tanks, oil processing, etc.
Tests are periodically conducted on the products we fabricate, and inspections are also held to evaluate the factory conditions so that the quality and integrity of the products we dispatch haven’t deteriorated.
2B, 2D, BA NO (8), Cold rolled Plate (CR), Hot rolled Plate (HR), SATIN (Met with Plastic Coated), No.1 finish hot rolled, 1D, 2B, No.4, BA, 8K, satin, hairline, brush, mirror etc.
| STANDARD | WERKSTOFF NR. | UNS |
| Duplex 2205 | 1.4462 | S31803 / S32205 |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
| S32205 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21.0 – 23.0 | 2.50 – 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S31803 / S32205 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
