Welcome to the official website of Minmetals East!
+86 19003917627
chuck@minmetalseast.com
Minmetals East
Contact person：Chuck
Phone：+86- 19693158686
Email：chuck@minmetalseast.com
Address：Western industrial Zone, Zhongzhan District, Jiaozuo City. Henan Province. P. R China
The high-alumina refractory bricks for the flue walls of the carbon baking furnace, produced by our company, incorporate raw materials such as andalusite, mullite, alumina, and blue crystals. These bricks are fired at a high temperature of 1500℃ , effectively addressing the shortcomings of traditional refractory bricks for flue walls, which include high creep rate at elevated temperatures, high porosity, low refractoriness under load, and poor thermal stability. This significantly enhances the high-temperature volume stability of the refractory bricks, making them an ideal product for extending the lifespan of baking furnaces.
Physical and Chemical Indicators
Refractory Bricks for
Flue Walls
Cross Walls
High Alumina Bricks
for Flue Walls
Al2O3（%）
≥ 52
≥ 50
≥ 60
Fe2O3（%）
≤ 1.5（1.8）
≤ 1.8（2.0）
≤ 1.4（1.8）
（g/cm3） Bulk density (g/cm3)
≥ 2.35
≥ 2.30
≥ 2.45
（%）
Apparent porosity (%)
≤ 19
≤ 20
（MPa）
Cold compressive strength (MPa)
≥ 65
（0.2 MPa，0.6%）
Refractoriness under load (0.2MPa，0.6%)
≥ 1480
≥ 1460
≥ 1600
0.2 MPa，（%）
High-temperature creep rate 0.2MPa, (%)
1280℃,25h
≤ 0.35
≤ 0.40
≤ 0.25
1350℃,50h
≤ 0.60
—
≤ 0.55
High-temperature flexural strength (MPa)
1200℃
≥ 12
≥ 10
1350℃
≥ 6
（20-1000 ℃ %）
Linear expansion rate (20-1000℃ %)
≤ 0.65
Permanent linear change after heating (%)
1450℃ ×2h
+0.1 ～ -0.3
1500℃ ×2h
（1100℃, ）
Thermal shock resistance (1100℃ , Water quenching Times)
≥ 30
≥ 40