Zhengzhou Rongsheng Refractory Co., Ltd.
Zhengzhou Rongsheng Refractory Co., Ltd. Refractory manufacturing company.
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High Alumina Insulating Fire Brick / Lightweight Refractory Bricks For Insulation Zone
Insulation Brick Description:
High temperature mullite insulation bricks for sale are made from good quality and superior raw materials, with strictly classified fillings according to their grades. These fillings can form a uniform pore structure after burnt during the process of manufacture. Each grade of products has unique design to meet different thermal, physical and chemical demands.
Mullite Insulation Brick Advantage:
1. Low thermal conductivity
2.High cold crushing strength
3.Perfect Energy saving
4.Stable volume
5.Excellent heat insulation
6.High intensity for pressure
7.Good thermal shock stability
Mullite Insulation Brick Application:
1, Metallurgical industry used industrial furnace and kilns
2, Ceramic industry used industrial furnace and kilns
3, Chemical industry used industrial furnace and kilns
4, Machinery industry used industrial furnace and kilns
5, Different types of furnaces and environments are available
Mullite Insulation Brick Physical and chemical index:
| Brand | RS-48 | RS-49 | RS-50 | RS-55 | RS-57 | RS-57 | RS-60 | RS-67 |
| Bulk density g/cm3 ≤ | 0.6 | 0.8 | 1 | 0.6 | 0.8 | 1 | 1 | 1.2 |
| Cold Crushing strength Mpa ≥ | 1.5 | 2.5 | 4.2 | 1.5 | 3.2 | 4 | 4 | 5 |
| Thermal stability 1100°C (air colling) | 10 | 20 | 20 | 10 | 20 | 20 | 20 | 20 |
| Reheating linear change ≤ 1% (°Cxh) | 1300x12 | 1300x12 | 1300x12 | 1400x12 | 1400x12 | 1400x12 | 1500x12 | 1500x12 |
| Thermal conductivity 350±25° (W/m.k) ≤ | 0.2 | 0.23 | 0.33 | 0.2 | 0.25 | 0.33 | 0.35 | 0.4 |
| Al2O3 % ≥ | 48 | 49 | 50 | 55 | 57 | 57 | 60 | 67 |
| Fe2O3 % ≥ | 0.9 | 0.9 | 0.9 | 0.8 | 0.8 | 0.8 | 0.7 | 0.6 |
