Hastelloy C-22 vs Hastelloy X
Property comparison of Hastelloy C-22 and Hastelloy X, both nickel alloy.
| Property | Hastelloy C-22 | Hastelloy X | Difference |
|---|---|---|---|
| Yield strength | 403 MPa | 380 MPa | -6% |
| Tensile strength | 802 MPa | 760 MPa | -5% |
| Elongation | 57 % | 44 % | -23% |
| Elastic modulus | 206,000 MPa | 196,000 MPa | -5% |
| Poisson ratio | 0.31 | 0.32 | +3% |
| Density | 8,690 kg/m³ | 8,220 kg/m³ | -5% |
| Thermal conductivity | 9.6 W/m·K | 9.7 W/m·K | +1% |
| Coefficient of thermal expansion | 0.000012 1/K | 0.000014 1/K | +11% |
| Melting point | 1,378 °C | 1,308 °C | -5% |
Difference is Hastelloy X relative to Hastelloy C-22. 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-22
- standard
- Haynes International Datasheet H-2019
- 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.
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