30%-48% Al2O3 Fireclay Brick 1380C-1450C Aluminum Silicate Fire Brick
Fireclay Brick
Fireclay bricks belong to the main varieties of silica-aluminum products, which are refractory products made of clay clinker as aggregate and fireclay as binder with Al2O3 content of 30-48%. Mainly used in thermal boiler, glass kiln, cement kiln, fertilizer gasifier, blast furnace, hot blast furnace, coke furnace, electric furnace, cast steel furnace.
▌FEATURES
1. Excellent Thermal Shock Resistance;
2. High compressive strength;
3. Low creep rate under high temperature ;
▌PHYSICAL AND CHEMICAL INDICATORS
|
Item |
Unit |
AL-48 |
AL-45 |
AL-40 |
|
|
Chemical composition |
Al2O3 |
% |
≥48 |
≥45 |
≥40 |
|
Fe2O3 |
% |
≤2.2 |
≤2.4 |
≤2.5 |
|
|
Apparent Porosity |
% |
≤18 |
≤18 |
≤24 |
|
|
Bulk Density |
g/cm3 |
≥2.30 |
≥2.20 |
≥2.15 |
|
|
Cold Crushing Strength |
MPa |
≥45 |
≥40 |
≥35 |
|
|
Refractoriness Under load |
℃ |
≥1450 |
≥1430 |
≥1380 |
|
|
Creep Rate |
% |
1280*25h ≤0.4 |
1280*25h ≤0.45 |
/ |
|
▌PRODUCT PICTURE

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