Hastelloy C-276
Hastelloy C-276 – Broadest-Spectrum Corrosion Resistance of Any Commercial Alloy
Hastelloy C-276 is the premier nickel-molybdenum-chromium alloy, offering the broadest corrosion resistance of any commercially available material. It resists both strongly oxidizing and strongly reducing acid environments simultaneously — a combination no other single alloy achieves — making it the default choice for the most aggressive mixed-acid chemical processing environments.
Key Properties
- Tensile Strength: 790 MPa
- Molybdenum Content: ~16% (superior pitting resistance)
- Corrosion Resistance: Outstanding in both oxidizing AND reducing media
- Density: 8.89 g/cm³
- Weldability: Good
- Standards: AMS 5530 / ASTM B575
Common Applications
Chemical reactors handling mixed acid environments, flue gas desulfurization systems, pharmaceutical reactors, pulp and paper bleaching equipment, nuclear waste processing vessels, and waste treatment systems.
Material properties
| Material name | Hastelloy C-276 |
|---|---|
| Type | Nickel Alloys |
| Standard code | AMS 5530 / ASTM B575 |
| Tensile strength (MPa) | 790 |
| Yield strength (MPa) | 355 |
| Fatigue strength (MPa) | 310 |
| Elongation (%) | 40 |
| Hardness (Brinell) | 209 |
| Density (g/cm³) | 8.89 |
| Electrical resistivity (µΩ·in) | 130 |
| Thermal conductivity (W/m·K) | 10.2 |
| Melting range (°C) | 1325–1370 |
| Weldability | Excellent |
| Formability | Good |
| Shear modulus | 79.4 |
| Industry code | hastelloy |