Item | Fire Clay Brick | |
DK-32 | DK-34 | |
Al2O3 | ≥40 | ≥42 |
Refractoriness °C | ≥1710 | ≥1750 |
0.2MPa Refractoriness under load °C | ≥1320 | ≥1400 |
Permanent liner change% | 1350°C×3h +0.2~-0.5 | 1400°C×2h +0.1~-0.4 |
Apparent Porosity % | ≤24 | ≤22 |
Cold crushing strength Mpa | ≥19.6 | ≥29.4 |
Bulk Density g/cm3 | 2.1 | 2.15 |