Mullite Refractory Brick Introduction
Mullite Refractory Bricks are an excellent quality high alumina refractory product with about 65~75 percent alumina content. Refractory mullite brick is made of mullite as the main refractory raw material and molded through high temperature firing and pressure. Mullite fire bricks have advantage performance on furnace and kiln application such as high temperature resistance, chemical and mechanical corrosion, good thermal shock resistance and so on.
Mullite Refractory Brick Characteristic
1. Mullite refractory bricks have low thermal conductivity, low heat fusion
2. Mullite fire brick has high strength and excellent thermal shock resistance
3.Refractory mullite brick has high temperature resistance and low heat fusion.
4.Fireproof mullite brick has direct contact with flame, resistant to various atmospheres.
Mullite Refractory Brick Specification
| Mullite Refractory Bricks | |||||
| Item | MU 60 | MU 65 | MU 70 | MU 75 | |
| Chemical Composition |
Al2O3 | ≥60 | ≥65 | ≥70 | ≥75 |
| SiO2 | ≤35 | ≤33 | ≤26 | ≤24 | |
| Fe2O3 | ≤1.0 | ≤1.0 | ≤0.6 | ≤0.4 | |
| Bulk Density g/cm3 | ≥2.55 | ≥2.55 | ≥2.55 | ≥2.55 | |
| Permanent Linear Change On Reheating (%) 1500℃X2h | 0~+0.4 | 0~+0.4 | 0~+0.4 | 0~+0.4 | |
| Apparent Porosity % | ≤17 | ≤17 | ≤17 | ≤18 | |
| Thermal Conductivity (W/MK) 1000℃ | 1.74 | 1.84 | 1.95 | 1.95 | |
| Cold Crushing Strength Mpa | ≥60 | ≥60 | ≥80 | ≥80 | |
| 20－1000℃ Thermal Expansich10-6/℃ | 0.6 | 0.6 | 0.6 | 0.55 | |
| 0.2Mpa Refractoriness Under Load T0.6 ℃ | ≥1580 | ≥1600 | ≥1600 | ≥1650 | |
| Thermal Shock Resistances 100℃ water cycles | ≥18 | ≥18 | ≥18 | ||
Application of Mullite Refractory Brick
Mullite fire bricks are mainly used for top of hot blast stove, stack and bottom of blast furnace, regenerative chamber of glass melter, ceramic post sintering kiln, furnace lining for dead angle of petroleum cracking and etc.
Mullite Refractory Bricks Supplier in RongSheng Refractory Factory
Rongsheng refractory company was founded in the 1990s, main refractory products are alumina refractory products and unshaped refractory materials.
Alumina refractory products mainly include high alumina bricks, mullite corundum bricks, silica bricks, corundum bricks.
Refractory products are widely used in black and non-ferrous metal smelting, chemical industry.
Rongsheng refractory company with professional design team and technical team. Rongsheng group can design the refractory configuration plan and construction plan according to your furnace condition and construction conditions, and provide on-site guidance construction.
If you have any needs in this regard, you can always contact us at Rongsheng Refractory and hope to establish long-term cooperation with your company.
