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..
