Description:
Corundum bricks are refractory bricks with corundum as the primary crystalline phase, containing more than 95% alumina (Al₂O₃). They are made mainly from industrial alumina or high-alumina bauxite and are sintered at high temperatures. JHYRef’s high purity corundum brick can withstand temperatures above 1770 °C and exhibit excellent thermal shock resistance, remaining stable even under rapid temperature fluctuations.
Specifications
| Items | Grades | ||||
| GYZ-99A | GYZ-99B | GYZ-98 | GYZ-95 | ||
| ω(Al2O3) / % | μ0 | ≥99.0 | ≥99.0 | ≥98.0 | ≥95.0 |
| ω(SiO2) / % | μ0 | ≤0.15 | ≤0.2 | ≤0.5 | —— |
| ω(Fe2O3) / % | μ0 | ≤0.10 | ≤0.15 | ≤0.20 | ≤0.30 |
| Open Porosity / % | μ0 | ≤19 | ≤19 | ≤19 | ≤20 |
| Density / (g/cm3) | μ0 | ≥3.20 | ≥3.15 | ≥3.15 | ≥3.10 |
| CCS / MPa | μ0 | ≥80 | ≥80 | ≥80 | ≥100 |
| HPLC (1600℃×3h) / % | XminXmax | -0.2~+0.2 | -0.2~+0.2 | -0.2~+0.2 | -0.3~+0.3 |
| R.U.L (0.2 MPa ,0.6%) / ℃ | Xmin | 1700 | 1700 | 1700 | 1700 |
Advantages of Corundum Brick
- Thermal Shock Resistance: Highly suitable for environments with frequent and rapid temperature changes.
- Chemical Stability: Corundum bricks offer excellent corrosion resistance, capable of withstanding attack from various chemicals.
- High Mechanical Strength and Wear Resistance: Resistant to erosion and abrasion, providing stable and reliable performance.
Product Size: We offer refractory brick sizes that comply with ISO, EN, ASTM, JIS, etc, and customized sizes.
Applications
Metallurgical industry: Corundum bricks are used for linings of blast furnaces, electric furnaces, converters, etc., and can withstand the erosion of high temperature molten iron and slag.
Glass industry: corundum brick can be used as refractory materials for key parts of glass melting furnaces.
Ceramic field: corundum bricks are important furnace building materials for ceramic kilns, which can ensure the stability of the high temperature environment in the kiln.
Chemical and building materials industries: corundum bricks also play their advantages of high temperature resistance and corrosion resistance to ensure the efficient operation of equipment.
Our services: refractory technicians, refractory installation drawings, refractory bricks and castables, refractory masonry services, refractory mixes and precast cell, special shaped bricks, insulation materials, installation supervision, accident investigation and resolution, other customized services.
