High Alumina Refractory Brick with Corrosion Resistance, Thermal Stability, and Extreme Heat Resistance
Price:
0.45-2.5usd/pc
MOQ:
500pcs
Delivery Time:
10 -15 days
Brand:
LEADSUN
Product Description
SK30 SK32 SK34 SK36 High Alumina Brick - Excellent Thermal Stability & Corrosion Resistance for Extreme Heat
Product Overview
Our High Alumina Brick is manufactured using carefully selected bauxite chamotte and advanced production technology, delivering outstanding performance in environments up to 1850°C. With its high alumina content and excellent mechanical properties, it is the preferred choice for demanding industrial furnaces and kilns.
Performance Advantages
- Corrosion Resistance: Highly resistant to acidic and basic slags
- Abrasion Resistance: Ideal for high-wear zones in rotary kilns and cyclones
- Thermal Shock Resistance: Maintains structural integrity under rapid temperature changes
- Customizable Shapes: Available in standard and tailored dimensions
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 | ≥1450 | ≥1510 | ≥1520 | ≥1600 |
| Apparent Porosity (%) | ≤24 | ≤23 | ≤21 | ≤18 |
| Cold Crushing Strength (MPa) | ≥45 | ≥50 | ≥60 | ≥85 |
Support & Services
- Comprehensive technical consultation and installation support
- Custom formulation and sizing available
- Prompt delivery with secure, moisture-proof packaging
Applications
- Steel furnaces and ladles
- Cement and ceramic rotary kilns
- Glass melting furnaces and regenerators
- Non-ferrous metal smelting equipment
- High-temperature incinerators and petrochemical reactors
Why Choose Our High Alumina Bricks?
We combine rigorous quality control with decades of refractory expertise to deliver bricks that extend furnace life, reduce downtime, and improve operational efficiency. Our products are trusted globally in steel, cement, glass, and metallurgical industries.
Key Features
Ultra-High Alumina Content
Ensures superior refractoriness and structural integrity
Excellent Thermal Stability
Under load, with a softening temperature exceeding 1600°C
Low Apparent Porosity
Enhances resistance to slag penetration and chemical erosion
High Mechanical Strength
Cold crushing strength ≥85 MPa for long service life
Optimized Thermal Conductivity
Balances insulation and thermal efficiency
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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