Applications
gas turbines, aerospace fasteners, oil & gas equipment.
MATERIALInconel 718Nickel alloys
NICKEL ALLOYS2.4668UNS N07718
MATERIAL DATASHEET
Inconel® 718 (UNS N07718 / W.Nr. 2.4668)
Precipitation-hardenable Ni-Cr-Fe alloy with Mo, Nb, Ti, Al; high strength up to ~700 °C and good weldability.
Standards & designations
| Designation | Reference |
|---|---|
| UNS | N07718 |
| Werkstoff Nr. | 2.4668 |
| ASTM | B637 (bar/forgings), B670 (plate) |
| ASME | SB637 |
| ISO | — |
| Others | AMS 5662/5663; Alloy 718 |
Mechanical properties
| Property | Value / condition |
|---|---|
| Yield strength Rp0.2 | ~ 1030 MPa (aged, typical) |
| Tensile strength Rm | ~ 1240 MPa (aged, typical) |
| Elongation | ~ 12–20 % (aged) |
| Hardness | — |
Chemical composition
Weight %
| Element | Ni | Cr | Mo | Nb+Ta | Ti | Al | Co | Mn | Si | C | Cu | B | Fe |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | 50.0 | 17.0 | 2.80 | 4.75 | 0.65 | 0.20 | — | — | — | — | — | — | bal. |
| Max | 55.0 | 21.0 | 3.30 | 5.50 | 1.15 | 0.80 | 1.0 | 0.35 | 0.35 | 0.08 | 0.30 | 0.006 | bal. |
Applications & processing
Heat treatment
Solution + age hardening (various schedules).
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.