Applications
oil & gas, subsea, marine, chemical process, pollution control, aerospace.
MATERIALInconel 625Nickel alloys
NICKEL ALLOYS2.4856UNS N06625
MATERIAL DATASHEET
Inconel® 625 (UNS N06625 / W.Nr. 2.4856)
Nickel-based alloy with Mo, Nb, Cr; solid-solution strengthened. Excellent resistance to pitting, crevice corrosion and SCC.
Standards & designations
| Designation | Reference |
|---|---|
| UNS | N06625 |
| Werkstoff Nr. | 2.4856 |
| ASTM | B443 (plate), B444 (pipe), B446 (bar), B564 (forgings) |
| ASME | SB443, SB444, SB446, SB564 |
| ISO | ISO 15156-3 (sour service) |
| Others | Alloy 625 |
Mechanical properties
| Property | Value / condition |
|---|---|
| Yield strength Rp0.2 | ≥ 414 MPa (min, annealed) |
| Tensile strength Rm | ≥ 827 MPa (min, annealed) |
| Elongation | ≥ 30 % (min) |
| Hardness | ≤ 220 HB (typ.) |
Chemical composition
Weight %
| Element | Ni | Cr | Mo | Nb+Ta | Fe | Co | Mn | Si | Al | Ti | C | P | S |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | 58.0 | 20.0 | 8.0 | 3.15 | — | — | — | — | — | — | — | — | — |
| Max | bal. | 23.0 | 10.0 | 4.15 | 5.0 | 1.0 | 0.5 | 0.5 | 0.4 | 0.4 | 0.10 | 0.015 | 0.015 |
Applications & processing
Heat treatment
Solution anneal ~ 1090–1200 °C; rapid quench.
Weldability
Excellent.
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.