Inconel 718 Manufacturer & Supplier
The most used aerospace superalloy: precipitation hardened to over 1275 MPa and stable to about 700 °C, with good weldability for a hardenable nickel alloy. Condition matters — rough machine annealed, finish after ageing.
UNS: AMS 5662 / AMS 5663 · UNS N07718 | Category: Nickel Alloys
Size Range
Outer Diameter: Bar 10-300 mm · plate and sheet to order · tube to order
Chemical Composition (%)
| Ni | Cr | Nb+Ta | Mo |
|---|---|---|---|
| 50.0-55.0 | 17.0-21.0 | 4.75-5.50 | 2.80-3.30 |
Mechanical Properties
- Tensile Strength
- 1275 MPa min (aged)
- Yield Strength
- 1034 MPa min
- Elongation
- 12% min
- Service
- to approximately 700 °C
Applicable Standards
- AMS 5662
- ASTM B637
- AMS 2750
- ASTM E8
- EN 10204 3.1
Applications
- Engine shafts, discs and casings
- Launch vehicle propulsion hardware
- High load fasteners and lugs
- Valve and actuator components
- Overhaul replacement stock
Industries Served
- Airframe & Structures
- Engine & Propulsion
- Space & Launch
- Defence Aerospace
- MRO & Overhaul
- Ground Support Equipment
Equivalent Grades
- AMS 5662
- AMS 5662
- AMS 5663
- AMS 5663
- UNS N07718
- UNS N07718
- Alloy 718
- Alloy 718
- 2.4668
- 2.4668