Al2O3≥65% 1500℃ High Alumina Brick 230x114x65mm for Kiln Furnace Steel Metallurgy
Price:
0.75-1.0usd/pcs
MOQ:
500pcs
Delivery Time:
10DAYS
Brand:
Leadsun
Product Description
Al2O3≥65% 1500℃ High Alumina Brick 230x114x65mm for Kiln Furnace Steel Metallurgy
Leadsun high alumina bricks are engineered for industrial furnaces, steel ladle linings, and kiln applications. High Alumina bricks are wildly use to the iron and steel metallurgical industry, building materials and ceramics industry, petrochemical and power industry and other high-temperature equipment. Manufactured with selected bauxite chamotte using advanced processes and strict quality control, these bricks deliver exceptional performance in demanding thermal environments.
Technical Specifications
| Item | HA60 | HA70 | HA75 | HA80 |
|---|---|---|---|---|
| Al₂O₃ (%) | ≥60 | ≥70 | ≥75 | ≥80 |
| SiO₂ (%) | 32 | 22 | 20 | ≥18 |
| Fe₂O₃ (%) | ≤2.5 | ≤2.0 | ≤1.8 | ≤1.5 |
| Refractoriness (°C) | ≥1750 | ≥1780 | ≥1800 | ≥1850 |
| Bulk Density (g/cm³) | 2.35-2.4 | 2.45-2.5 | 2.5-2.55 | 2.75-2.8 |
| Softening Temperature Under Load (°C) | ≥1450 | ≥1510 | ≥1520 | ≥1600 |
| Apparent Porosity (%) | ≤24 | ≤23 | ≤21 | ≤18 |
| Cold Crushing Strength (MPa) | ≥45 | ≥50 | ≥60 | ≥85 |
Key Advantages
Low Iron Content: Minimal iron oxide impurities (<2%) prevent unwanted reactions and discoloration at high temperatures.
Optimal Bulk Density: Dense structure (2.5-3.0 g/cm³) enhances mechanical strength, load-bearing capacity, and thermal conductivity.
Excellent Erosion Resistance: Superior resistance to chemical erosion and slag corrosion in acidic or alkaline environments.
High Temperature Resistance: Withstands extreme temperatures up to 1750°C or higher, maintaining structural integrity.
Applications
1. Iron and Steel Metallurgy:
- Blast furnace: Furnace throat, furnace body；
- Hot blast furnace: Furnace vault
- Ladle: Slag line area
- Electric furnace/converter: Furnace top triangle area
2.Energy and Chemical Industry
-
Boiler: Combustion chamber lining, cyclone separator;
-
Cracking furnace: Radiant section furnace wall;
-
Incinerator: Secondary combustion chamber lining;
3.Building materials industry:
-
Cement rotary kiln: Firing zone, transition zone, and preheating zone;
- Glass melting furnace: Kiln roof, breast wall, heat storage chamber;
- Ceramic Kiln: Kiln car table in firing area;
Product Features
- Long service life with easy operation and flexible shaping capabilities
- Low thermal conductivity with excellent thermal insulation performance
- Available in standard form, normal standard, shaped and special shaped bricks
- Versatile use across various kilns with cost-effective general tray packaging
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Qingdao Leadsun Refractory Co., Ltd
Location
No. 700, Qingshan Road, Licang District, Qingdao, China
Contact Person
Tony