The USA equivalent of Inconel 718 (2.4668) is AMS 5662/5663/5664 with a 100% composition match.
🇺🇸 USA equivalent of
Inconel 7182.4668
Standard: AMS · Source: AMS
Aerospace material specs (annealed / aged)
Quick Facts
| Original | 🇺🇸 Equivalent | |
|---|---|---|
| Designation | Inconel 718 | AMS 5662/5663/5664 |
| Material Number | 2.4668 | — |
| Standard | ASTM B637 | AMS |
| Category | Nickel Alloys | Nickel Alloys |
Frequently Asked Questions
Is Inconel 718 the same as AMS 5662/5663/5664?
Inconel 718 (ASTM B637) and AMS 5662/5663/5664 (AMS) are near-equivalent grades with a 100% composition overlap. Both are nickel grades. Minor differences may exist in alloying element ranges. For most applications, they are interchangeable. Always verify against the applicable specification for safety-critical components.
Can I substitute Inconel 718 with AMS 5662/5663/5664?
In most cases, yes. The chemical composition ranges overlap significantly (100%). However, verify mechanical property requirements for your specific application, as heat treatment practices may differ between ASTM B637 and AMS standards.
What is the AMS equivalent of Inconel 718?
The AMS equivalent of Inconel 718 (2.4668) is AMS 5662/5663/5664, specified in AMS.
Other International Equivalents
| Country | Standard | Grade | Match | |
|---|---|---|---|---|
| 🇪🇺 | Europe | EN | NiCr19Fe19Nb5Mo3 | 100% |
| 🇫🇷 | France | AFNOR | NC19FeNb | 95% |
Related Comparisons
Data provided for reference only. Always verify against the applicable specification for critical applications. Source: ASTM B637, AMS.
All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.