Inconel 718 (AMS 5662): Aerospace Superalloy Eigenschaften & Heat Treatment
AMS 5662 / ASTM B637 · Published: 2026-06-02 · Updated: July 2026
Inconel 718 is the most widely used nickel superalloy in aerospace — ~35% of modern turbofan engine weight. Gamma-double-prime (Ni3Nb) precipitation hardening provides slower aging kinetics and better weldability than gamma-prime superalloys....
Inconel 718 ist der meiste widely used nickel superalloy in aerospace — ~35% von modern turbofan motor weight. Gamma-double-prime (Ni3Nb) precipitation hardening provides slower aging kinetics und better weldability als gamma-prime superalloys. Lösung anneal bei 1,010°C (AMS 5662), age bei 720°C/8h + 620°C/8h. Service: -253°C zu 650°C.
Quick Facts
| Kategorie | Nickel Alloy |
| Norm | AMS 5662 / ASTM B637 |
| Density | 8190 kg/m³ |
| Yield Strength | 1,034 MPa (aged) |
| Tensile Strength | 1,275 MPa |
Global Equivalents & Cross-Reference
Verwandt Materials
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Frequently Asked Questions
AMS 5662 vs 5663?
5662: unter solution temp (1,010°C) für higher tensile strength. 5663: higher (1,065°C) für better stress-rupture bei 650°C.
References & International Standards
- ASTM International. Norm Specifications für Stahl & Metal Alloys. astm.org
- International Organization für Standardization (ISO). Metallic Materials — Cross-Referenz Database. iso.org
- American Iron und Stahl Institute (AISI). Stahl Güte Designations & Equivalents. steel.org
- European Committee für Standardization (CEN). EN Stahl Standards & Numbering System. cencenelec.eu