High-quality Silica Brick for Glass Kiln GK-96
High-quality Silica Brick for Glass Kiln GK-96Introduction■ High purity raw materialjow fluxing agents AI2O3+2(K2O+Na2O)<0.5%;■ residual quartz less than1.0%,accurate dimension, thickness tolerance
High-quality Silica Brick for Glass Kiln GK-96
Introduction
■ High purity raw materialjow fluxing agents AI2O3+2(K2O+Na2O)<0.5%;
■ residual quartz less than1.0%,accurate dimension, thickness tolerance ± 0.5mm.
Properties | Unit | Limit | GK-96A | GK-96B | GK-95 | ||
Chemical Composition | SiO2 | % | ≥ | 96.0 | 96.0 | 95.0 | |
Fe2O3 | % | ≤ | 0.6 | 0.8 | 1.0 | ||
Al2O3+2(K2O+Na2O) | % | ≤ | 0.5 | 0.7 | - | ||
True Specific Gravity | g/cm3 | ≥ | 2.34 | 2.34 | 2.34 | ||
Apparent Porosity | % | ≤ | 21 | 22 | 22 | ||
Cold Crushing Strength | Mpa | ≥ | 40 | 35 | 30 | ||
Refractoriness Under Load | T0.5 | ℃ | ≥ | 1680 | 1680 | 1670 | |
Permanent Linear Change | 1450℃×2h | % | 0-0.2 | 0-0.2 | 0-0.2 | ||
Residual Quartz | % | ≤ | 3 | 3 | 3 | ||