Hastelloy C-276 vs Waspaloy: 14% composition overlap. Significantly different materials serving different application areas.
Hastelloy C-276 vs Waspaloy
Side-by-side chemical composition and mechanical property comparison.
Overview
Hastelloy C-276
2.4819
The most versatile corrosion-resistant alloy available. Ni-Mo-Cr-W composition resists both oxidizing and reducing environments. Outstanding resistance to pitting, stress corrosion cracking, and wet chlorine gas. Used in chemical processing, flue gas desulfurization, pulp & paper, and waste treatment.
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.
| Hastelloy C-276 | Waspaloy | |
|---|---|---|
| Material Number | 2.4819 | 2.4654 |
| Category | Nickel Alloys | Nickel Alloys |
| Standard | ASTM B575 | ASTM B637 |
Chemical composition (wt%)
| Element | Hastelloy C-276 | Waspaloy | Overlap |
|---|---|---|---|
| C | 0–0.01% | 0.02–0.1% | No overlap |
| Si | 0–0.08% | 0–0.75% | OK |
| Mn | 0–1% | 0–1% | OK |
| Cr | 14.5–16.5% | 18–21% | No overlap |
Mechanical properties
| Property | Hastelloy C-276 | Waspaloy | Unit |
|---|---|---|---|
| tensile_strength | ≥ 690 | 1170–1310 | MPa |
| yield_strength | ≥ 310 | 720–895 | MPa |
| elongation | ≥ 40 | 15–25 | % |
Compatibility Assessment
Hastelloy C-276 and Waspaloy have significantly different compositions (14% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is Hastelloy C-276 the same as Waspaloy?
Hastelloy C-276 and Waspaloy have a 14% composition overlap. They are generally not directly interchangeable.
Can I replace Hastelloy C-276 with Waspaloy?
Generally not recommended. The compositions differ significantly (14% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between Hastelloy C-276 and Waspaloy?
The main differences are in the following elements: C, Cr, Mo, Fe. Hastelloy C-276 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.
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