Zhengzhou Rongsheng Refractory Co., Ltd.
Zhengzhou Rongsheng Refractory Co., Ltd. Refractory manufacturing company.
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Industrial Furnace Refractory Fire Bricks , Yellow Insulating Firebrick
Features
1. High cold crushing strength
2. High refractoriness under the load
3. Good creep resistance
Andalusute Brick has high cold crushing strength,high refractoriness under load, high thermal stability,good creep resistance and thermal shock resistance,It is alternative product for high aluminum bricks, used in the professional of the key parts of the furnaces.
Applications
Andalusite bricks are mainly used in the cooling wall of blast furnace, chemical and ceramic industry, the door of coke oven, or as the lining and checker of hot blast furnaces.
Physical properties and chemical composition
Andalusite bricks
|
Product Index |
HZ-55 |
HZ-62 |
HZ-65 |
|
|
Chemical analysis |
Al2O3% |
≥55 |
≥62 |
≥65 |
|
Fe2O3 % |
≤1.2 |
≤1.2 |
≤1.2 |
|
|
Physical properties |
Bulk density (g/cm3) |
≥2.45 |
≥2.5 |
≥2.5 |
|
Apparent porosity (%) |
≤17 |
≤17 |
≤17 |
|
|
Cold crushing strength (Mpa) |
≥60 |
≥60 |
≥60 |
|
|
Refractoriness under load(°C) |
≥1600 |
≥1650 |
≥1680 |
|
|
Thermal shock resistance |
Good |
Better |
Better |
|
|
Thermal expansion coefficient(1000°C) |
≤ 0.55 |
≤ 0.55 |
≤ 0.55 |
|
|
Creep resistance 20-50h,(%) |
1350°C <0.2 |
1400°C <0.2 |
1450°C <0.2 |
|