Material Grade
Duplex 2205
Stainless Steel Duplex 2205 is the most widely used duplex (ferritic/austenitic) stainless steel grade. It finds applications due to both excellent corrosion resistance and high strength. Duplex 2205 is a nitrogen enhanced stainless steel that was developed to combat common corrosion problems encountered with the 300 series stainless steels.Duplex Steel 2205 is not generally suitable for use at temperatures above 300°C as it suffers from precipitation of brittle micro-constituents, nor below -50°C because of its ductile-to-brittle-transition.
Specifications
| Standard | Duplex 2205 |
| UNS | S31803 / S32205 |
| Werkstoff Nr. | 1.4462 |
Mechanical & Physical Properties
| Density | 7.8 g/cm3 |
| Melting Point | 1440 °C (2625 °F) |
| Tensile Strength | Psi-90000 , MPa-620 |
| Yield Strength (0.2%Offset) | Psi-65000 , MPa-450 |
| Elongation | 30 % |
Chemical Composition
| Duplex 2205 | |
| Ni | 4.5-6.5 |
| Fe | Balance |
| Cr | 22-23 |
| Mo | 3-3.5 |
| C | 0.030 max |
| Mn | 2.0 max |
| Si | 1 max |
| P | 0.030 max |
| N | 0.14-0.2 |
| S | 0.02 max |
Application
Chemical Industry
Oil & Gas Industry
Nuclear Industry
Food Processing
Fabrication Industry
