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High Alumina Refractory Bricks

High Alumina Refractory Bricks

High Alumina Refractory Bricks stands as a type of alumina-silicate refractory material characterized by an alumina oxide content exceeding 48%. This brick is meticulously calcined and shaped using either bauxite or materials boasting a high AL2O3 composition. Displaying remarkable thermal stability, it possesses a refractoriness surpassing 1770°C. With commendable slag resistance, this brick finds application in the construction of linings for steel-making electric furnaces, glass furnaces, and cement rotary kilns.

High Alumina Brick – High Alumina Refractory Ball

High Alumina Refractory Brick Physical and Chemical Index:
Item Properties 
RS-80RS-75RS-65RS-55RS-48
Al2O3 (%)80≥75≥65≥55≥48
Refractoriness  (°C )≥1790 ≥1790≥1790≥1770≥1750
Bulk density  (g/cm3)2.652.52.452.42.3
Softening temperature under load  (°C )1530≥1520≥1500≥1470≥1420
Reheating Linear changes Rate (%)1500°CX2H0.10.10.10.10.1
1450°CX2H-0.4-0.4-0.4-0.4-0.4
Apparent porosity (%)22≤23≤23≤22≤22
Cold crushing strength (Mpa)55≥50≥45≥40≥35
Application steel furnace, glass furnace, sodium silicate furnace, ceramic shuttle kiln, cement rotary kiln, blast furnace, electric furnace, blast furnace and reverberatory furnace.
Application of High Alumina Refractory Bricks

High alumina bricks find extensive application in a diverse array of industrial settings. These include blast furnaces, Hot Blast Stoves, steel ladle linings, reheating furnaces, cement kilns, tunnel kilns, boilers, coke ovens, carbon furnaces, glass kilns, steel smelting furnaces, and various other kiln linings and thermotechnical equipment.

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