Applications
offshore topside/subsea, chemical process, seawater systems.
MATERIALSuper Duplex S32750Stainless steel
STAINLESS STEEL1.4410UNS S32750
MATERIAL DATASHEET
Super Duplex 2507 (UNS S32750 / EN 1.4410)
Super duplex stainless steel with very high strength and PREN ≥ 40; excellent pitting/crevice/SCC resistance.
Standards & designations
| Designation | Reference |
|---|---|
| UNS | S32750 |
| Werkstoff Nr. | 1.4410 |
| ASTM | A240 (plate), A182 (F53 forgings), A789/A790 |
| ASME | SA240, SA182 F53, SA789/SA790 |
| EN/ISO | EN 10088-3 (1.4410) |
| Others | X2CrNiMoN25-7-4 |
Mechanical properties
| Property | Value / condition |
|---|---|
| Yield strength Rp0.2 | ≥ 530–550 MPa |
| Tensile strength Rm | ~ 730–795 MPa (typ./min) |
| Elongation | ≥ 25 % |
| Hardness | ~ 310 HB max (typ.) |
Chemical composition
Weight %
| Element | Cr | Ni | Mo | N | C | Mn | Si | P | S | Cu | W | Fe |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | 24.0 | 6.0 | 3.0 | 0.24 | — | — | — | — | — | 0.50 | — | bal. |
| Max | 26.0 | 8.0 | 5.0 | 0.32 | 0.03 | 2.0 | 1.0 | 0.035 | 0.02 | 0.50 | 0.50 | bal. |
Applications & processing
Heat treatment
Solution anneal ~ 1020–1120 °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.