Buy Low Cost high Quality Bottom Pouring Refractory Bricks are manufactured with various types of base raw materials to achieve the high performance, high application service temperature requirement, ensure very smooth casting, and cost reduction objectives. These bricks are produced and available in three different types of materials: low cost fire clay, high alumina, and andalusite base materials.
Item | Unit | Fire clay
| High Alumina
| Andalusite | |||
|
| WBP40 | WBP30 | WBP48 | WBP55 | WBP65 | WBPA57 |
Al2O3 | % | 40 |
| ≥48 | ≥55 | ≥65 | ≥57 |
Fe2O3 | % | 2 - 2.5 | 2 - 2.5 |
|
|
| ≤2.0 |
SiO2 | % | 65 | 58 |
|
|
|
|
Apparent Porosity | % | 30 | 30 | ≤25 | ≤26 | ≤26 | ≤25 |
Bulk Density | g/cm3 | 2 | 2 | ≥2.15 | ≥2.20 | ≥2.30 | ≥2.30 |
Service Temperature | ºC | 1450 | 1400 | 1500 | 1600 | 1600 | 1600 |
Permanent Linear Change |
| 1350 ºC×5h | 1350 ºC×5h | 1450 ºC×2h | 1450 ºC×2h | 1500 ºC×2h |
|
% | 1 | 1 | 0.1~-0.4 | ±0.3 | ±0.3 |
|
