Hastelloy C-276 vs Hastelloy X: 21% composition overlap. Significantly different materials serving different application areas.
Hastelloy C-276 vs Hastelloy X
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.
Hastelloy X
2.4665
Nickel-chromium-iron-molybdenum solid-solution superalloy — exceptional combination of oxidation resistance, fabricability, and high-temperature strength. NOT age-hardenable (solid-solution only). Oxidation-resistant to 1200°C, good ductility after 16000h at 650-870°C. Outstanding formability and weldability for a superalloy. Used for gas turbine combustor cans, transition ducts, afterburners, furnace hardware, and petrochemical process equipment.
| Hastelloy C-276 | Hastelloy X | |
|---|---|---|
| Material Number | 2.4819 | 2.4665 |
| Category | Nickel Alloys | Nickel Alloys |
| Standard | ASTM B575 | ASTM B435 |
Chemical composition (wt%)
| Element | Hastelloy C-276 | Hastelloy X | Overlap |
|---|---|---|---|
| C | 0–0.01% | 0.05–0.15% | No overlap |
| Si | 0–0.08% | 0–1% | OK |
| Mn | 0–1% | 0–1% | OK |
| Cr | 14.5–16.5% | 20.5–23% | No overlap |
Mechanical properties
| Property | Hastelloy C-276 | Hastelloy X | Unit |
|---|---|---|---|
| tensile_strength | ≥ 690 | 690–760 | MPa |
| yield_strength | ≥ 310 | 275–345 | MPa |
| elongation | ≥ 40 | 35–45 | % |
Compatibility Assessment
Hastelloy C-276 and Hastelloy X have significantly different compositions (21% 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 Hastelloy X?
Hastelloy C-276 and Hastelloy X have a 21% composition overlap. They are generally not directly interchangeable.
Can I replace Hastelloy C-276 with Hastelloy X?
Generally not recommended. The compositions differ significantly (21% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between Hastelloy C-276 and Hastelloy X?
The main differences are in the following elements: C, Cr, Mo, W. Hastelloy C-276 is a Nickel Alloys grade, while Hastelloy X 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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