| Technical Data | Chrome Corundum Brick | |||||
| GGY-30 | GGY-20 | GGY-12 | GGY-5 | |||
| Chemical Composition (wt%) | Al2O3 | ≥68 | ≥78 | ≥86 | ≥93 | |
| Cr2O3 | ≥30 | ≥20 | ≥12 | ≥5 | ||
| Fe2O3 | ≤0.1 | ≤0.1 | ≤0.2 | ≤0.2 | ||
| Volume Density (kg/m3) | ≥3400 | ≥3300 | ≥3200 | ≥3200 | ||
| Apparent Porosity (%) | ≤18 | ≤18 | ≤19 | ≤19 | ||
| Normal Temperature Compression Strength (MPa) | ≥90 | ≥90 | ≥90 | ≥100 | ||
| Refractoriness under Load (℃) | 0.2MPa，0.6% | ＞1700 | ＞1700 | ＞1700 | ＞1700 | |
| Refiring Linear Change (%) | 1600℃×3h | ±0.3 | ±0.3 | ±0.3 | ±0.3 | |
| Maximum Service Temperature (℃) | ≥1900 | ≥1900 | ≥1850 | ≥1800 | ||
