Inconel 601 vs Waspaloy: 43% composition overlap. Significantly different materials serving different application areas.
Inconel 601 vs Waspaloy
Side-by-side chemical composition and mechanical property comparison.
Overview
Inconel 601
2.4851
Nickel-chromium-iron alloy with aluminum for outstanding high-temperature oxidation resistance up to 1200°C. The Al forms a protective oxide scale resistant to spalling under cyclic thermal conditions. Better oxidation resistance than Inconel 600 (which lacks Al). Used for furnace hardware (baskets, trays, fixtures), radiant tubes, thermocouple protection tubes, catalyst support grids, and thermal reactors in automotive exhaust systems.
Waspaloy
2.4654
Nickel-based gamma-prime strengthened superalloy — THE turbine disc material. Excellent creep-rupture strength up to 650°C (rotating) and 870°C (static). Developed 1950s by Pratt & Whitney. Triple-aged (solution + stabilize + precipitation) for peak properties. Superior to Inconel 718 above 650°C. Used for compressor and rotor discs, shafts, spacers, seals, rings, casings, and fasteners in gas turbine engines.
| Inconel 601 | Waspaloy | |
|---|---|---|
| Material Number | 2.4851 | 2.4654 |
| Category | Nickel Alloys | Nickel Alloys |
| Standard | EN 10095 | ASTM B637 |
Chemical composition (wt%)
| Element | Inconel 601 | Waspaloy | Overlap |
|---|---|---|---|
| C | 0–0.1% | 0.02–0.1% | OK |
| Si | 0–0.5% | 0–0.75% | OK |
| Mn | 0–1% | 0–1% | OK |
| S | 0–0.015% | — | — |
Mechanical properties
| Property | Inconel 601 | Waspaloy | Unit |
|---|---|---|---|
| tensile_strength | 550–750 | 1170–1310 | MPa |
| yield_strength | 205–310 | 720–895 | MPa |
| elongation | 30–50 | 15–25 | % |
Compatibility Assessment
Inconel 601 and Waspaloy have significantly different compositions (43% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is Inconel 601 the same as Waspaloy?
Inconel 601 and Waspaloy have a 43% composition overlap. They are generally not directly interchangeable.
Can I replace Inconel 601 with Waspaloy?
Generally not recommended. The compositions differ significantly (43% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between Inconel 601 and Waspaloy?
The main differences are in the following elements: Cr. Inconel 601 is a Nickel Alloys grade, while Waspaloy is a Nickel Alloys grade.
Related Comparisons
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Data provided for reference only. Always verify against the applicable specification for critical applications.
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.