Corundum Brick

Product advantages: high strength, high temperature resistance, corrosion resistance, and good chemical stability.

product description

High-purity corundum bricks use tabular corundum and fused corundum as the main raw materials, through scientific and reasonable grading, with excellent performance additives, high-pressure molding, high-temperature sintering, and the refractory products are characterized by high strength and high temperature resistance. Corrosion resistance and good chemical stability.

Physical and chemical indicators

project	High purity corundum brick DL-99	Corundum mullite brickDL-95	Corundum mullite brickDL-90	Corundum mullite brickDL-80
AI2O3% ≥	99	95	90	80
SiO2 ％≤	0.3	3.0	9.0	18
Fe2O3％≤	0.2	0.2	0.5	0.5
R2O% ≤	0.3	0.6	0.6	0.4
Bulk density/(g/cm³)	3.0	2.9	2.85	2.7
Compressive strength at room temperature/Mpa≥	75	100	100	60
Refractoriness ℃	1790	1790	1790	1790
Load softening start temperature 0.2Mpa ℃≥	1700	1700	1700	1650
Reheating line change (1600℃×3h)% ≤	0.2	0.2	0.2	0.3
Thermal stability times 1100℃ water cooling≥	6	10	10	20