Corundum Brick

Chinese Name：刚玉制品

Product Features：Corundum products and corundum synthetic products are characterized with excellent thermal shock resistance, corrosion resistance and have super properties in erosion and spalling.

Product Details

Characteristics: Corundum products and corundum synthetic products are characterized with excellent thermal shock resistance, corrosion resistance and have super properties in erosion and spalling. They are the first selected super materials for glass furnaces, heating furnaces chemical kilns and metallurgic furnaces.

Applications: Widely used as linings in decomposing furnaces for petroleum and chemical industry, as well as chemical fertilizer industry. They also used as high temperature kiln linings and furniture’s in metallurgical industry.

Specifications：

Index Item	High Pure Corundum Brick DL-98	Common Corundum Brick DL-95	Common Corundum Brick DL-90	Mullite Corundum Brick MDL-80	Chromium Corundum Brick GDL-85
Al₂O₃%≥	98.5	95	90	80	85
Cr₂O₃%≥	——	——	——	——	8
SiO₂%≤	0.3	3.0	9.0	18	0.2
Fe₂O₃%≤	0.2	0.3	0.5	0.5	0.2
R₂O%≤	0.3	0.6	0.6	0.4	0.5
Bulk Density g/cm³≥	3.0-3.2	2.9	2.9	2.75	3.1
Compressive Strength at Normal Temperature MPa≥	75	100	100	60	120
℃≥ Fire Resistant	1790	1790	1790	1790	1790
℃ Soften Point at 0.2 MPa Load 0.2MPa≥	1700	1650	1650	1650	1650
% 1600×3h≤ Reheating Linear Shrinkages	0.2	0.2	0.2	0.3	0.2
1100℃≥ Thermal Shock Stability	6	10	10	20	15