Hastelloy C-276 vs Hastelloy X
Property comparison of Hastelloy C-276 and Hastelloy X, both nickel alloy.
| Property | Hastelloy C-276 | Hastelloy X | Difference |
|---|---|---|---|
| Yield strength | 360 MPa | 380 MPa | +6% |
| Tensile strength | 790 MPa | 760 MPa | -4% |
| Elongation | 58 % | 44 % | -24% |
| Elastic modulus | 205,000 MPa | 196,000 MPa | -4% |
| Poisson ratio | 0.31 | 0.32 | +3% |
| Density | 8,890 kg/m³ | 8,220 kg/m³ | -8% |
| Thermal conductivity | 10.2 W/m·K | 9.7 W/m·K | -5% |
| Coefficient of thermal expansion | 0.000013 1/K | 0.000014 1/K | +9% |
| Melting point | 1,347 °C | 1,308 °C | -3% |
Difference is Hastelloy X relative to Hastelloy C-276. Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- grade
- C-276
- standard
- Haynes International Datasheet H-2002
- heat treatment
- Annealed
- grade
- X
- standard
- Haynes International Datasheet H-3009C
- heat treatment
- Annealed
About Hastelloy nickel-molybdenum superalloys
Hastelloy is a family of nickel-molybdenum-chromium alloys built for severe corrosion service. C-276 is the workhorse for chemical process equipment and handles wet chlorine, hypochlorite, and ferric chloride. B-series grades focus on hydrochloric acid resistance.
What else is in Engineering Database
AI built for engineering. Searches the engineering database, performs calculations, gives source-backed engineering insights.
Get started for free ↗Reference Data375 engineering tablesMaterial properties, pipe and shape dimensions, code tables, and electrical ratings across mechanical, civil, chemical, electrical, materials, and manufacturing engineering.
Browse dataCalculatorsDeterministic engineering calculatorsSizing, checking, and conversion tools that run against the reference tables. Inputs are code-compliant, outputs are traceable to the source standard.
Browse calculators