Zhengzhou Rongsheng Refractory Co., Ltd.
Zhengzhou Rongsheng Refractory Co., Ltd. Refractory manufacturing company.
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65% High Alumina Refractory Brick Light Yellow Neat Appearance
| Al2O3 (%)
| ≥60 | ≥70 | ≥75 | 78-80 |
| SIO2 (%)
| 32 | 22 | 20 | ≥18 |
| Fe2O3 (%)
| ≤1.7 | ≤2.0 | ≤1.8 | ≤1.8 |
| Na2O+K2O(%)
| <2.3 | <2.0 | <1.2 | |
| Refractoriness
| 1790 | >1770 | >1790 | ≥1790 |
| refractoriness under load 0.2mpa(°C)
| 1450 | >1510 | >1520 | ≥1520 |
| Porosity (%)
| 22 | <22 | <21 | 20 |
| Bulk density(g/cm3)
| 2.33 | 2.43-2.48 | 2.45-2.55 | 2.55 |
| Cold Cushing strength (Mpa)
| ≥45 | ≥50 | ≥54 | ≥60 |
| Thermal expansion at 1000°C (%)
| ≤0.3 | ≤0.3 | ≤0.3 | ≤0.3 |
| Reheating shrinking change(%) 1500°CX24h
| -0.3 | -0.3 | -0.3 | -0.3 |
Features:
Resistance to High temperature, Resistance to erosion, resistance to abrasion;
Excellent compression strength;
Resistance to acid and alkali;
Excellent heat stability.
Application
The high alumina bricks are widely applied to industrial furnace, glass furnace, chemical industrial furnace, utility industry furnace lining, smelting furnace, and heat insulation ventilation wall.
