Good Creep Resistance Kiln Refractory Low Porosity Small Fire Bricks Andalusite Brick As The Lining And Checker
Good Creep Resistance Kiln Refractory Andalusite Brick As The Lining And Checker
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. Andalusite bricks are products that add some components of sillimanite or andalusite and other trace elements to the components of high alumina brick. This series of products has excellent thermal shock resistance and high temperature creep is greatly improved. Andalusite bricks are used in blast furnaces, air heaters, torpedo type mixer.
Physical properties and chemical composition
|
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 |
|
About Us
Zhengzhou RongSheng Kiln Refractory Co. Ltd. has more than 20 years of history in the production of refractory materials. Our company is mainly engaged in the production of shaped refractories, unshaped refractories, thermal insulation materials. Now, we have established cooperative relationships with many R&D units, and our products have been sold to Japan, Korea, New Zealand, Indonesia, South Africa, Pakistan, Nigeria, Kazakhstan, etc..
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