The andalusite mullite refractory brick is made of andalusite , and is added with a powder of sillimanite powder, mullite powder, etc., The binder is added in proportion, and is prepared by mixing, kneading, molding, and drying at a high temperature. Usage of andalusite mullite refractory bricks in hot blast stoves: hot blast stove wall, checker brick, furnace top, combustion chamber ( andalusite low creep series)
1. High temperature resistance, abrasion resistance and corrosion resistance.
2. Good thermal shock resistance.
3. Low creep rate.
4. High refractoriness under load .
5. Reduce harmful impurities
6,Good hot peeling resistance.
Jansincere Refractories always firmly believe that the intention to do the product, adhere to product innovation, and ultimately to win the trust of customers
Item |
Unit |
High Alumina Brick (Andalusite) |
Anchor Brick (Andalusite) |
Max working temperature |
℃ |
1650 |
1650 |
Raw material |
/ |
Andalusite |
Andalusite |
Al2O3 |
% |
≥59 |
63 |
SiO2 |
% |
≤36 |
34 |
Fe2O3 |
% |
≤1.0 |
0.8 |
Bulk density |
g/cm3 |
2.55 |
2.5 |
Cold crushing strength (110℃) |
N/mm2 |
≥70 |
≥70 |
Thermal conductivity at 800℃ |
w/m.k |
1.6 |
1.6 |
Thermal conductivity at 1200℃ |
w/m.k |
1.61 |
1.98 |
Refractoriness (SC) |
/ |
38 |
38 |
Thermal shock resistance |
Cycles |
≥20 |
≥20 |
Thermal expansion |
% |
0.8 |
0.8 |
Apparent porosity |
% |
≤18 |
≤18 |
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