To Order, Please Call: 1-877-365-2995 or Email: Sales@KTRefractories.com

KT Refractories US Company

Corundum Mullite Bricks,Mullite Bricks,

Corundum Bricks

Corundum Bricks are high alumina refractory bricks are made for extreme demands. The alumina content in Corundum Brickscan be traced to the use of synthetic corundum of high purity, such as white fused alumina or tabular alumina. Additional ingredients are special refractory clays, reactive alumina and very pure modifications of silica.

Corundum Bricksare fired at high temperatures to form a matrix with mullite, mullite-corundum or corundum that has excellent volume stability.

The service temperature for Corundum Bricksgoes up to 1800°C. Corundum Brickscan be used nearly all fields of industrial application where extreme high temperature and increased resistance against aggressive slags and atmospheres. Such properties or features of Corundum Bricksare necessary especially in the chemical industry and for the production of carbon black. The addition of chromium oxide, zirconium oxide and phosphates lends the bricks excellent structural flexibility, which is required for ash melting furnaces and gas reactors in incinerators. KT Refractories distributes Corundum Bricksat the best quality with the most competitive prices by our fast, responsive customer service and reliable delivery service.

Call 1-877-365-2995 to order Corundum Bricksand our fast reliable delivery services save you both time and money!

Corundum Bricks Specs

Corundum Bricks KFTN_LNY KFTN_LNJT KFTN_JPSTD
(CX-AWP)
KFTN_USSTD
(AH199B)
KFTN_FRSTD
(AT100)
SiO2 (%) 0.15 0.24 0.28 0.11 0.48
Al2O3 (%) 99.51 99.30 98.82 99.60 97.42
Fe2O3 (%) 0.11 0.08 0.01 0.041 0.06
R2O (%) 0.026 0.12 n/a 0.14 0.43
Apparent Porosity (%) 18 16.2 17-18 18 19
Bulk Density (g/cm3) 3.20 3.23 3.25-3.26 3.23 3.09
Cold Crushing Strength (MPa) 133.5 96 85.2-90.4 106.59 96.2
Rupture Strength at 1450 °C 13 7.25
Refractoriness  under load (°C) > 1700 > 1800 > 1700 > 1700 > 1700
Linear change rate on reheating
(1600×3h) %
0.0 - 0.1 ±0.1 -0.3
Thermal Shock Resistance Times (>1100 °C cooled with water) 23 18 20 at 1100 °C (cooled with wind) 13 n/a

Typical Corundum Bricks

Corundum Bricks Chemical Composition Physical Indexes
Al2O3 SiO2 Fe2O3 Na2O Bulk Density Apparent Porosity Cold Crushing Strength
WT-99 ≥98.5% ≤0.5% ≤0.3% ≤0.4% ≥3.2 ≤20 ≥70
WA-99 ≥98% ≤0.3% ≤0.4% ≥3.15 ≤20 ≥60
SA-40R ≥92% ≤0.5% ≥3.05 ≤18 ≥68
SA-40S ≥90% ≤0.8% ≥3.1 ≤17 ≥80