Payment & Shipping Terms:
|Al2o3:||55%-82%||Raw Materials:||Calcined Bauxite|
|Application:||Industrial Furnaces, Metallurgy||Color:||Light Yellow|
|Size:||As Request||Bulk Density:||2.3-2.7 G/cm3|
|Fe2O3:||2%||Product Name:||High Alumina Brick For Lime Shaft Kiln|
ISO9001 Compliant High Alumina Refractory Bricks High Mechanical Strength
The high alumina brick is an alumina-silicate refractory material in which the Al2O3 content is more than 55%, and is calcined from a high-content alumina raw material such as a silicone raw material or a bauxite. High heat resistance and high temperature resistance at 1770°C and above. Has good slag resistance, mainly used in the masonry of steelmaking electric furnace, glass furnace, cement rotary furnace and so on.
More refractory than refractory clay bricks and semi-silica bricks, up to 1750-1790C, belonging to high-grade refractory materials.
2. Load softening temperature
Since the high aluminum has a high Al2O3 content, a low impurity content, and a low formation of the molten glass body, the fire-resistant softening temperature is higher than that of the refractory clay brick. However, since the mullite crystal has not yet formed a network structure, the load softening temperature is lower than the load softening temperature of the silica brick.
Excellent load-bearing properties
Excellent resistance to spalling
Resistant to corrosion
Cement Rotary Kilns
Blast furnaces Stoves & Checkers
Electric Furnace Roof
Physical and chemical indexes
|Item/Grade||Fire clay brick||High alumina brick|
|Refractoriness under load, 0.2MPa, °C (≥)||1250||1300||1360||1420||1450||1480||1530||1600|
|Apparent porosity (%)||22-26||20-24||20-22||18-20||20-23||20-23||20-22||18-20|
|Bulk density (g/cm³)||1.9-2.0||1.95-2.1||2.1-2.2||2.15-2.22||2.25-2.4||2.3-2.5||2.4-2.6||2.5-2.7|
|Cold crushing strength ,MPa (≥)||20||25||30||40||45||50||60||70|
Henan HengYu Kiln Refractory Co.,Ltd. now mainly produces refractory materials for steel, metallurgy, coking, cement, charcoal, glass and various industrial kiln furnaces. It produces more than 60,000 tons of various stereotyped and amorphous refractory materials annually. The company now owns 45 million fixed assets and 260 employees, including 6 engineers. There are more than 20 engineering and technical personnel, including five departments, six functional departments, three sub-factories, five workshops, one furnace construction engineering team, one R&D center and one testing center.
Contact Person: Mika