High-Alumina Firebrick (60-70% Al2O3) vs Magnesia (MgO) Refractory Brick
Property comparison of High-Alumina Firebrick (60-70% Al2O3) and Magnesia (MgO) Refractory Brick, both refractory.
| Property | High-Alumina Firebrick (60-70% Al2O3) | Magnesia (MgO) Refractory Brick | Difference |
|---|---|---|---|
| Elastic modulus | 50,000 MPa | 90,000 MPa | +80% |
| Poisson ratio | 0.25 | 0.25 | 0% |
| Density | 2,600 kg/m³ | 2,950 kg/m³ | +13% |
| Thermal conductivity | 1.8 W/m·K | 4.5 W/m·K | +150% |
| Specific heat | 880 J/kg·K | 1,000 J/kg·K | +14% |
| Coefficient of thermal expansion | 0.000006 1/K | 0.000014 1/K | +145% |
Difference is Magnesia (MgO) Refractory Brick relative to High-Alumina Firebrick (60-70% Al2O3). Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- standard
- ASTM
- standard
- ASTM
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