Product description
Chrome corundum brick products produced by CH Refractories are made of corundum and fused chromium oxide as the main raw materials, with micro powder and other additives, after mixing, forming, drying, and firing at high temperature in shuttle kiln. Products with wear resistance, heat shock, acid and alkali erosion and other characteristics. High chromium brick (Cr2O3≥90%) is mainly used in coal chemical industry, chemical industry kiln, alkali free glass fiber kiln, garbage incinerator and other key parts of kiln.
Chrome corundum brick can be used as glass kiln lining, brushed glass flow hole cover brick and used in molten iron pretreatment device, garbage incinerator, coal water slurry pressurized gasification furnace backing, etc.

Advantages:
◆High annual output
◆Good erosion resistance performance
◆Good thermal shock resistance
◆Competitive price
◆Stric raw material and manufacturing process control.

Physical and chemical index of chrome corundum brick
|
Item |
High chromium oxide brick |
Medium chrome oxide brick |
chrome corundum brick |
chrome corundum brick |
chrome corundum brick |
|
Cr2O3 % |
≥93 |
≥86 |
≥60 |
≥30 |
≥12 |
|
Al2O3 % |
- |
- |
≤38 |
≤68 |
≤80 |
|
Fe2O3 % |
- |
- |
≤0.2 |
≤0.2 |
≤0.5 |
|
Appearance porosity % |
≤17 |
≤17 |
≤14 |
≤16 |
≤18 |
|
Bulk density g/cm3 |
≥4.3 |
≥4.2 |
≥3.63 |
≥3.53 |
≥3.3 |
|
Cold crushing strength MPa |
≥100 |
≥100 |
≥130 |
≥130 |
≥120 |
|
Refractoriness under load℃(0.2Mpa,0.6%) |
≥1680 |
≥1670 |
≥1700 |
≥1700 |
≥1700 |
|
Linear change on reheating % |
±0.2 |
±0.2 |
±0.2 |
±0.2 |
±0.2 |
Packages:

Physical and chemical index of chrome corundum brick
|
Item |
High chromium oxide brick |
Medium chrome oxide brick |
chrome corundum brick |
chrome corundum brick |
chrome corundum brick |
|
Cr2O3 % |
≥93 |
≥86 |
≥60 |
≥30 |
≥12 |
|
Al2O3 % |
- |
- |
≤38 |
≤68 |
≤80 |
|
Fe2O3 % |
- |
- |
≤0.2 |
≤0.2 |
≤0.5 |
|
Appearance porosity % |
≤17 |
≤17 |
≤14 |
≤16 |
≤18 |
|
Bulk density g/cm3 |
≥4.3 |
≥4.2 |
≥3.63 |
≥3.53 |
≥3.3 |
|
Cold crushing strength MPa |
≥100 |
≥100 |
≥130 |
≥130 |
≥120 |
|
Refractoriness under load℃(0.2Mpa,0.6%) |
≥1680 |
≥1670 |
≥1700 |
≥1700 |
≥1700 |
|
Linear change on reheating % |
±0.2 |
±0.2 |
±0.2 |
±0.2 |
±0.2 |




