Physical and chemical index of Low creep high alumina brick

Low creep high alumina brick is a special bauxite clinker as the main raw material, supplemented by special additives, high pressure molding, high temperature firing, with thermal storage capacity, small creep rate, etc., suitable for small and medium blast furnace Matching hot air stove.
Creep high alumina bricks physical and chemical indicators
Specifications DRL-135 DRL-145 DRL-150 DRL-165 DRL-155 DRL-150
Al2O3,% ≥ 70 75 80 65 55 48
Refractoriness, ℃ ≥ 1790 1790 1790 1790 1770 1750
Apparent porosity,% ≤ 20 20 19 24 24 24
Normal temperature compressive strength, MPa ≥ 65 70 80 49 44.1 39.2
The rate of change of the burner,% ≥ ± 0.1 ± 0.1 ± 0.1 + 0.1 ~ -0.4 + 0.1 ~ -0.4 + 0.1 ~ -0.4
1450 ℃ x2h 1500 ℃ x2h 1450 ℃ x2h
0.2MPa load softening start temperature, ℃ ≥ 1500 1550 1650 1500 1470 1420
High temperature creep rate,% ≤ 0.6
1350 ° C × 50 h 0.6 0.7
1450 ℃ × 50h 1500 ℃ × 50h
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Chinafirebrick provides refractory products, calcium silicate products, castable & mortar, china refractory brick, ceramic fiber felt, ladle & tundish nozzle, ceramic fiber with high quality for you. Such as high alumina refractory bricks, Magnesia Carbon Brick, clay refractory bricks and other refractory.
Article Source: high alumina brick
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