| Technical Data | Corundum Brick | |||
| GYA | GYB | GYC | ||
| Chemical Composition (wt%) | Al2O3 | ≥99 | ≥98 | ≥95 |
| Fe2O3 | ≤0.1 | ≤0.1 | ≤0.2 | |
| SiO2 | ≤0.2 | ≤0.2 | ≤0.8 | |
| Volume Density（kg/m3） | ≥3200 | ≥3150 | ≥3150 | |
| Normal Temperature Compression Strength (MPa) | ≥80 | ≥80 | ≥90 | |
| Refractoriness under Load (℃) | 0.2MPa，0.6% | ＞1700 | ＞1700 | ＞1700 |
| Refiring Linear Change (%) | 1600℃×3h | ±0.2 | ±0.2 | ±0.2 |
| Maximum Service Temperature (℃) | ≥1800 | ≥1750 | ≥1700 | |
