Hafnium (Hf pure >99.9%) vs Magnesia (MgO) Refractory Brick
Property comparison of Hafnium (Hf pure >99.9%) and Magnesia (MgO) Refractory Brick, both refractory.
| Property | Hafnium (Hf pure >99.9%) | Magnesia (MgO) Refractory Brick | Difference |
|---|---|---|---|
| Elastic modulus | 78,000 MPa | 90,000 MPa | +15% |
| Poisson ratio | 0.37 | 0.25 | -32% |
| Density | 13,310 kg/m³ | 2,950 kg/m³ | -78% |
| Thermal conductivity | 23 W/m·K | 4.5 W/m·K | -80% |
| Specific heat | 144 J/kg·K | 1,000 J/kg·K | +594% |
| Coefficient of thermal expansion | 0.000006 1/K | 0.000014 1/K | +129% |
Difference is Magnesia (MgO) Refractory Brick relative to Hafnium (Hf pure >99.9%). 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
- R02040
- standard
- CRC Handbook of Chemistry and Physics 103rd Ed.
- heat treatment
- annealed
- grade
- —
- standard
- ASTM
- heat treatment
- —
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