Inconel 718 is a nickel-chromium superalloy that retains strength at elevated temperatures and resists corrosion in harsh chemical environments. Standard for jet-engine components, turbocharger wheels, and oilfield downhole tools.
Mechanical and physical properties
| Property | Value |
|---|---|
| Tensile strength | 1240 MPa |
| Yield strength | 1035 MPa |
| Elongation at break | 12% |
| Density | 8.19 g/cm³ |
| Modulus | 200 GPa |
| Max service temperature | 700 °C |
| Machinability rating | Difficult |
Cost and lead time
Inconel 718 stock is expensive and machining is slow. Use only when temperature, fatigue, or corrosion demand it — not as a generic 'high-strength' alternative to steel.
Typical applications
- Jet engine combustor and turbine components.
- Turbocharger and exhaust parts.
- Oilfield and downhole tools.
- Cryogenic structural fittings.
Related materials
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