Aluminum silicate fireclay bricks high alumina brick at a competitive price
Negotiable /Ton
Min.Order:1 Ton
Zhengzhou Sunrise Refractory Co., Ltd.
High alumina refractory brick Primarily used for industrial ceramics, electronics, petrochemical and metallurgical industries.
Physical and chemical index
Item | AKZ-85 | AKZ-90 | AKZ-99 | |
Chemical composition | Al2O3 | ≥85 | ≥90 | ≥99 |
SiO2 | ≤13 | ≤8 | ≤0.2 | |
Fe2O3 | ≤0.5 | ≤0.5 | ≤0.5 | |
Apparent Porosity% | 58-62 | 58-62 | 58-62 | |
Bulk Density g/cm3 | 1.4-1.7 | 1.4-1.7 | 1.4-1.7 | |
Cold Crushing Strength Mpa | ≥12 | ≥10 | ≥9 | |
0.1Mpa Refractoriness Under Load T0.6 °C | ≥1650 | ≥1700 | ≥1700 | |
Permanent Linear Change On Reheating (%)1500°CX2h | ±0.3 | ±0.3 | ±0.3 | |
20-1300°C Thermal Expansion % (x 10-6) | 0-7.8 | 0-8.0 | 0-8.6 | |
Thermal Conductivity(Average 800°C) W/(M.K) | ≤0.8 | ≤1.3 | ≤1.5 | |
Max Service Temperature °C | 1680 | 1700 | 1800 |
Primarily used for lining of high temperature furnace and thermal insulate of ultra-high temperature furnace of industrial as refractory material, industrial ceramics, electronics, petrochemical and metallurgical industries.