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Andalusite Refractory Bricks
Brand: HongTai Refractory
Category: Alumina & Silica Bricks
Al203: ≥55%
Standard Size:
- 230mm x 114mm x 65mm (9″ x 4.5″ x 2.5″)
- 230mm x 114mm x 75mm (9″ x 4.5″ x 3″)
Payment Terms: T/T, Credit Cardse, E-Checking, Alibaba Trade Assurance
Product Information
Andalusite brick has high Al2O3 content and low impurity content, making it an ideal high-grade refractory material.
At the same time, the volume change of andalusite refractory bricks during the sintering process is stable. Andalusite refractory bricks have good low thermal conductivity, high resistance to slag corrosion and creep resistance. Refractory bricks have high thermal strength, low porosity, resistance to pressure drop and crushing, deformation resistance, thermal shock resistance, and good fire resistance. The micro-expansion of andalusite refractory bricks changes the use of materials and the extension of service life.
Andalusite refractory bricks are widely used in kilns and boilers in various industrial fields such as metallurgy, building materials, fine ceramics, electric power, and chemical industries. Andalusite refractory bricks are used in some metallurgical furnace tops, and the effect is better than silica bricks.
| Item: | HB | HD | HS | DE | |||
| Al2O3 % | ≥65 | ≥53 | ≥57 | ≥55 | |||
| Fe2O3 % | ≤0.8 | ≤1.0 | ≤0.8 | ||||
| TiO2 % | ≤0.5 | ≤0.6 | ≤0.5 | ||||
| K2O+Na2O % | ≤0.6 | ≤1.2 | ≤0.6 | ≤1.2 | ≤0.6 | ≤1.2 | ≤1.0 |
| Impurity % | ≤0.7 | ≤0.7 | ≤0.7 | ||||
| Apparent porosity | ≤20 | ≤20 | ≤20 | ≤24 | |||
| Bulk density g/cm³ | ≥2.45 | ≥2.35 | ≥2.40 | ≥2.40 | |||
| Cold crushing strength MPa: | ≥50 | ≥40 | ≥40 | ≥40 | |||
| Modulus of rupture MPa: | ≥18 | ≥15 | |||||
| Refractoriness under load | T0.5≥1520 | T0.5≥1350 | T0.5≥1470 | T2≥1580 | |||
| T2≥1630 | T2≥1490 | T2≥1580 | |||||
| Creep% (0.2Mpa×50h) | 1500×(2050)h | 1350×(2050)h | 1400×(2050)h | 1450×(2050)h | |||
| ≤0.2 | ≤0.2 | ≤0.2 | ≤0.2 | ||||
| Permanent linear change % | 1500×4h | 1400×4h | 1500 | ||||
| ±0.2 | ±0.2 | ||||||
- High Refractoriness
- Thermal Stability
- Low Thermal Conductivity
- High Mechanical Strength
- Good Thermal Shock Resistance
- Chemical Resistance
- Creep Resistance
| Application | Detailed Info |
|---|---|
| Glass Industry | Used in glass melting furnaces, regenerators, and glass tank furnaces |
| Cement Industry | Employed in cement rotary kilns, preheaters, and coolers |
| Iron and Steel Industry | Used in blast furnaces, steel ladles, tundishes, and electric arc furnaces |
| Non-Ferrous Metal Industry | Applied in aluminum and copper production, melting and holding furnaces, anode baking furnaces, and electrolytic cells |
| Petrochemical Industry | Utilized in cracking furnaces, reforming furnaces, and other high-temperature applications |
| Ceramic Industry | Used in tunnel kilns, shuttle kilns, and high-temperature furnaces for firing ceramics and tiles |
| Incineration Plants | Employed in waste incineration plants for extreme temperatures and corrosive environments |
