Product detail
Corundum Brick
Mainly used in key parts of kilns in steel, electronics, petrochemical, fertilizer, non-ferrous, refractory and other industries
Product Parameters
| 项目 Item |
高纯刚玉砖 Ultra Purity Corundum Brick |
99刚玉砖 99 Corundum Brick |
90刚玉砖 90 Corundum Brick |
刚玉莫来石砖 Corundum-Mullite Brick |
| Al2O3（%） | ≥99.3 | ≥98.5 | ≥90 | ≥80 |
| SiO2 (%) | ≤0.15 | ≤0.3 | ≤8.5 | ≤18.5 |
| Fe2O3 (%) | ≤0.1 | ≤0.2 | ≤0.2 | ≤0.3 |
| 体积密度(g/cm3) Bulk Density |
≥3.25 | ≥3.25 | ≥3.1 | ≥2.9 |
| 显气孔率(%) Apparent Porosity |
≤18 | ≤18 | ≤18 | ≤18 |
| 常温耐压强度(Mpa) Cold Crushing Strength |
≥100 | ≥100 | ≥120 | ≥120 |
| 荷重软化开始温度(℃) (0.2Mpa,0.6%) Refractoriness under Load |
≥1700 | ≥1700 | ≥1700 | ≥1700 |
| 重烧线变化率 (%) Reheating Linear Change Rate |
-0.2 | -0.2 | 0.2 | 0.2 |
| 热膨胀系数(x10-6) （室温Room Temp. to -1300℃） Coefficient of Thermal Expansion |
8.1 | 8.1 | 8.1 | 7.6 |
| 典型应用 Typical Application |
主要用于钢铁，电子，石油化工，化肥，有色，耐火材料等行业窑炉的关键部位。 Mainly used in key parts of kilns in steel, electronics, petrochemical, fertilizer, non-ferrous, refractory and other industries |
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