Description:
Corundum bricks are good refractory material product with a content of alumina greater than 90% and a main crystalline phase of corundum.It is devided to corundum bricks, Chrome corundum bricks, Titanium corundum bricks according to their used raw materials. There also are other kinds of corundum bricks, like sintered corundum bricks and fused corundum bricks.
Features:
Corundum bricks have good chemical stability, excellent thermal shock resistance, resistance to corrosion, erosion and spalling.
Application:
Corundum bricks are new type good refractories used for glass furnace, cement kiln, heaters molten steel ladle, metallurgical furnaces for nonferrous metals and furnaces for chemical engineering industries.
Specification:
Products | CMC | Corundum Bricks | Chrome Corundum Bricks | Titanium Corundum Bricks | |||
Index | C90 | C95 | C98 | CC12 | TC | ||
Al2O3 % Min | 85 | 90 | 95 | 98 | 73 | 94 | |
Fe2O3 % Max | 0.5 | 0.8 | 0.6 | 0.4 | 1.0 | 0.4 | |
Cr2O3 % Min | - | - | - | - | 12 | (TiO2) 1.0 | |
Apparent Porosity % Max | 20 | 20 | 20 | 20 | 20 | 2 | |
Bulk Density g/cm3 Min | 2.8 | 3.0 | 3.05 | 3.1 | 3.0 | 3.6 | |
Cold Crushing Strength Mpa Min | 40 | 80 | 80 | 80 | 50 | 300 | |
Refractoriness Under Load ℃ Min | 1500 | 1700 | 1700 | 1700 | 1700 | 1650 | |
Reheating Linear Change % | 1550℃x2h | - | +/-0.3 | +/-0.2 | - | - | +/-0.2 |
1600℃x2h | - | - | - | +/-0.2 | +/-0.2 | - | |