Corundum Brick
2.Corundum brick is manufactured using high quality synthetic electro-fused corundum and sintered corundum and finely grained highly aluminous raw materials with ceramic and chemical bonding.
3.Corundum brick is shaped under high pressure and fire with high temperature with scientifically and reasonably gradating and adding good performance of additives.
Technical Data Sheet for Corundum Brick
|
Item |
Ultra Purity Corundum Brick |
Corundum Brick 99 |
Corundum Brick 90 |
Corundum-mullite Brick |
|
Al2O3/% |
≥99.3 |
≥98.5 |
≥90 |
≥80 |
|
SiO2/% |
≤0.15 |
≤0.3 |
≤8.5 |
≤18.5 |
|
Fe2O3/% |
≤0.1 |
≤0.2 |
≤0.2 |
≤0.3 |
|
Bulk Density/g/cm3 |
≥3.25 |
≥3.25 |
≥3.1 |
≥2.9 |
|
Apparent porosity/% |
≤18 |
≤18 |
≤18 |
≤18 |
|
Cold crushing strength/MPa |
≥100 |
≥100 |
≥120 |
≥120 |
|
(0.2Mpa,0.6%) Refractoriness under load/°C |
≥1700 |
≥1700 |
≥1700 |
≥1700 |
|
(1600℃×8h)Reheating linear change rate/% |
-0.2 |
-0.2 |
0.2 |
0.2 |
|
(Room temp. To 1300℃)Thermal expansion coefficient/×10-6 |
8.1 |
8.1 |
8.1 |
7.6 |
Features for Corundum Brick
1.High temperature resistance,
2.High strength,high compression resistance,
3.Excellent thermal shock resistance,
4.High bulk density, good thermal conductivity,
5.Good wear resistance and acid,alkali corrosion resistance.
Size for Corundum Brick
1.Common size:230*114*65,230*114*75
2.Also can make brick according to customers’ drawing and requirements.
Application for Corundum Brick
Corundum brick primarily used for the key parts of the industrial furnace of steel, metallurgica,electronics,petrochemical,chemical fertilizers,non-ferrous metals,refractorty material and so one.
Packing for Corundum Brick
1.Pallet+Steel angle bead+Wood board +Steel belt +Plastic film
2.Wooden carton packing
3.Can make the package according to customer's requirements.
