Applications
pressure vessels, heat exchangers, piping, offshore equipment.
MATERIALDuplex 2205Stainless steel
STAINLESS STEEL1.4462UNS S32205 (also S31803 legacy)
MATERIAL DATASHEET
Duplex 2205 (UNS S32205 / EN 1.4462)
Duplex stainless steel with ~50/50 austenite-ferrite microstructure; high strength and chloride SCC resistance.
Standards & designations
| Designation | Reference |
|---|---|
| UNS | S32205 (also S31803 legacy) |
| Werkstoff Nr. | 1.4462 |
| ASTM | A240 (plate), A182 (forgings), A789/A790 (tube/pipe) |
| ASME | SA240, SA182, SA789/SA790 |
| EN/ISO | EN 10088-3 (1.4462) |
| Others | X2CrNiMoN22-5-3 |
Mechanical properties
| Property | Value / condition |
|---|---|
| Yield strength Rp0.2 | ≥ 450–530 MPa (product dependent) |
| Tensile strength Rm | ≥ 620–730 MPa |
| Elongation | ≥ 25 % |
| Hardness | ~ 290 HB max (typ.) |
Chemical composition
Weight %
| Element | Cr | Ni | Mo | N | C | Mn | Si | P | S | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| Min | 22.0 | 4.5 | 3.0 | 0.14 | – | – | – | – | – | bal. |
| Max | 23.0 | 6.5 | 3.5 | 0.20 | 0.03 | 2.0 | 1.0 | 0.03 | 0.02 | bal. |
Applications & processing
Heat treatment
Solution anneal ~ 1020–1100 °C; rapid quench.
Weldability
Good.
The information in this datasheet is provided for guidance only. Intermec AS does not guarantee the accuracy or completeness of the data. Users must verify suitability for their specific applications.