We are a refractory material manufacturer, with four major factories: heavy brick factory, light brick factory, monolithic refractory factory and fused-cast brick factory.
We promise to provide you with high-quality refractory materials.
Product description of high alumina refractory bricks
High alumina brick is a kind of aluminosilicate refractory with alumina content more than 48%. It is calcined from bauxite raw materials or high Al2O3 materials, with high thermal stability and refractoriness above 1770 ℃. It has good slag resistance.
Applications of high alumina refractory bricks
Petrochemical process heater
Heat treatment furnace
Tunnel kiln
Pallet car furnace
Ceramics are fired in kilns
Cement rotary kiln
Glass melting tank
blast furnace
Hot blast stove
Refractory heating surface in furnace
Parameters of high alumina refractory bricks
| Item/Grade | SK-36 | SK-37 | SK-38 | SK-40 |
| AL2O3% (≥) | 55 | 65 | 70 | 82 |
| Fe2O3% (≤) | 2 | 2 | 2 | 2 |
| Refractoriness(SK) | 36 | 37 | 38 | 40 |
| Refractoriness underload, 0.2MPa, °C (≥) | 1450 | 1480 | 1530 | 1600 |
| Apparent porosity (%) | 20-23 | 20-23 | 20-22 | 18-20 |
| Bulk density (g/cm³) | 2.25-2.4 | 2.3-2.5 | 2.4-2.6 | 2.5-2.7 |
| Cold crushing strength ,MPa (≥) | 45 | 50 | 60 | 70 |
Kerui Refractory Co., Ltd. has a complete range of refractory products, which can be customized to process various special-shaped bricks, and can be produced on demand to meet the operating conditions of various high-temperature kilns.