Mullite Brick
We offer you high quality Mullite Bricks and sell & export Mullite Tiles at factory price. You can also get customized mullite bricks service by informing us about your requirements.
- Main Composition: Al2O3≥60%
- Application: Industrial Furnaces and Equipment
- Raw Material: Fused Mullite
- Color: White
- Refractoriness: ≥1700℃
- Refractoriness Under Load 0.2MPa: ≥1500℃
- Capacity: 1000 MT per month
- Package: Export wooden pallets and polyboard
High quality refractory bricks
Product Details
Mullite Refractory Brick for Sale
Description
Mullite brick is a kind of refractory brick with mullite as the main crystal phase. Generally, the alumina content is between 65% and 75%. Mullite bricks have a high refractoriness, which can reach over 1790°C. They are divided into sintered mullite bricks and electrofused mullite bricks. Mullite bricks are divided into sintered mullite bricks and electrofused mullite bricks.
Features
Refractoriness
Mullite refractory bricks have excellent refractory properties, can withstand high temperature thermal shock, thermal expansion and chemical erosion, maintain structural integrity and stability, and can operate stably for a long time under high temperature environment.
Erosion resistance
Mullite bricks have high erosion resistance to acidic and alkaline media. It is able to resist the erosion of corrosive gases, liquids and solids, extending the service life of the refractory.
Thermal shock stability
Mullite firebricks have good thermal shock stability and are able to maintain low thermal stresses under rapid temperature changes. This reduces the risk of cracking and breakage and increases the service life of the refractory structure.
Mechanical strength
Mullite Fire Brick has high mechanical strength and resistance to compression. It is able to withstand mechanical and gravitational loads, maintaining the stability and integrity of the structure.
Thermal conductivity
Mullite bricks have good thermal conductivity and are able to conduct and disperse heat effectively.
Lightweight
Compared with traditional refractory brick materials, mullite refractory bricks have lower density and lighter weight.
Environmentally friendly
Mullite bricks do not contain harmful substances and comply with environmental standards. It does not release harmful gases at high temperatures, which is friendly to the environment and human health.
Application
Metallurgical industry
Mullite refractory bricks are commonly used in high-temperature equipments in metallurgical industry, such as smelting furnace, converter, electric arc furnace and so on. It can withstand high temperatures and corrosive media, protect the structure of the equipment from damage, and provide effective refractory protection.
Glass Industry
Mullite firebrick is widely used in the lining of glass kilns. In the glass manufacturing process, the high temperature glass melt requires high refractory performance and erosion resistance of the lining material. Mullite bricks can provide reliable refractory protection and extend the service life of the kiln.
Ceramic industry
Mullite refractory bricks are suitable for lining ceramic furnaces and kiln furniture. During the sintering process of high-temperature ceramics, mullite bricks maintain structural stability against high temperatures and chemical atmospheres, ensuring the quality and productivity of ceramic products.
Power industry
Mullite bricks are used as furnace linings in power boilers and thermal power stations. During the combustion process, mullite bricks can withstand the impact of high-temperature combustion gases and slag, protect the boiler structure from erosion, and improve the service life and thermal efficiency of the boiler.
Iron and steel smelting industry
Mullite refractory bricks can be used for high-temperature equipments in iron and steel smelting process, such as blast furnace, steel-making furnace and so on. It can withstand the impact of high temperature and corrosive gases, protect the refractory lining of the equipment, and ensure the stability and efficiency of the smelting process.
Petrochemical industry
Mullite refractory bricks are used in high-temperature equipment in the petrochemical industry, such as cracking furnaces, reforming furnaces and so on. It can withstand high temperature and corrosive media erosion, provide reliable refractory protection, ensure the normal operation of equipment and production quality.
Mullite Refractory Brick Specifications
| Mullite brick | CF1550 | CF1600 | CF1650 | |
|---|---|---|---|---|
| Al2O3 (%) | ≥60 | ≥65 | ≥70 | |
| Fe2O3 (%) | ≤1.5 | ≤1.2 | ≤0.8 | |
| TiO2 (%) | – | ≤0.6 | ≤0.5 | |
| Bulk Density(g/cm3) | ≥2.5 | ≥2.6 | ≥2.65 | |
| Apparent Porosity(%) | ≤19 | ≤19 | ≤19 | |
| 0.2MPa Refractoriness Under Load (℃) | ≥1500 | ≥1550 | ≥1600 | |
| Cold Crushing Strength(MPa) | ≥60 | ≥70 | ≥75 | |
| Thermal Shock Resistance (900℃, water cooling)(Cycles) | ≥25 | ≥30 | ≥35 | |
| Thermal Expansion Rate (20~1000℃) (%) | ≤0.8 | ≤0.7 | ≤0.7 | |
| Permanent Linear Change | ±0.5 | ±0.5 | ±0.3 | |
| (1500℃×3h)(%) | ||||
| Creep Rate | Testing Temperature | 1350℃ | 1400℃ | 1450℃ |
| 0~50 hrs | ≤0.6 | |||
| 20~50 hrs | ≤0.2 | |||
Specializing in refractory materials for over 20 years, we provide professional refractory solutions for the global high temperature industry.
