Henan Rongsheng Xinwei New Materials Research Institute Co., Ltd
High Quality Industrial Refractory Material Manufacturer And Supplier
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Introduction of High Temperature Strength Low Price High Alumina Refractory Brick Refractory Fire Brick For Steel And Glass Furnace
High alumina bricks are a type of refractory material made from high-grade raw materials, primarily composed of alumina (Al2O3). They are widely used in various high-temperature industrial applications due to their excellent thermal and mechanical properties.
| Item | Properties | |||||
| RS-80 | RS-75 | RS-65 | RS-55 | RS-48 | ||
| Al2O3 (%) | 80 | ≥75 | ≥65 | ≥55 | ≥48 | |
| Refractoriness (°C ) | ≥1790 | ≥1790 | ≥1790 | ≥1770 | ≥1750 | |
| Bulk density (g/cm3) | 2.65 | 2.5 | 2.45 | 2.4 | 2.3 | |
| Softening temperature under load (°C ) | 1530 | ≥1520 | ≥1500 | ≥1470 | ≥1420 | |
| Linear changes on reheating (%) | 1500°CX2H | 0.1 | 0.1 | 0.1 | 0.1 | |
| -0.4 | -0.4 | -0.4 | -0.4 | |||
| 1450°CX2H | | | | | 0.1 | |
| -0.4 | ||||||
| Apparent porosity (%) | 22 | ≤23 | ≤23 | ≤22 | ≤22 | |
| Cold crushing strength (Mpa) | 55 | ≥50 | ≥45 | ≥40 | ≥35 | |