Corundum Refractory

Description

1. Product Overview
   Corundum Refractory is a high-performance refractory material primarily composed of high-purity alumina (Al₂O₃), engineered for extreme thermal and mechanical stress environments. It is widely used in high-temperature industrial furnaces, kilns, and metallurgical processes where superior heat resistance and structural stability are critical. The key value proposition lies in its exceptional refractoriness, corrosion resistance, and long service life under aggressive operating conditions. Strategically, it is essential for industries seeking to improve operational efficiency, reduce downtime, and extend equipment lifespan in high-temperature applications.
2. Key Specifications & Technical Characteristics

• Chemical Composition: Al₂O₃ ≥ 90–99% (high-grade corundum base)
• Material Type: Sintered or fused corundum aggregate
• Color: White to light gray
• Bulk Density: 3.2 – 3.9 g/cm³ (depending on grade)
• Grain Size: Customizable (fine powder to coarse aggregates)
• Melting Point: ~2050°C
• Hardness: Mohs scale ~9
• Packaging: 25 kg bags, 1-ton jumbo bags, bulk shipment
• Shelf Life: Indefinite under dry storage conditions

3. Core Industrial Applications
   Corundum Refractory is extensively used in steel, cement, glass, petrochemical, and non-ferrous metallurgy industries. It is applied in blast furnaces, ladles, kiln linings, incinerators, and high-temperature reactors. Its superior thermal shock resistance and chemical inertness make it ideal for environments with aggressive slag and molten metal exposure. Compared to conventional refractory materials, corundum-based products deliver higher durability, reduced erosion rates, and improved energy efficiency, significantly lowering maintenance and replacement costs.
4. Competitive Advantages

• Superior thermal stability for extreme temperature operations
• High resistance to chemical corrosion and slag penetration
• Consistent quality with controlled industrial-grade manufacturing
• Extended service life reducing operational downtime
• Cost-efficient lifecycle performance compared to alumina-silica refractories
• Reliable bulk supply capability for large-scale industrial demand
• Technical documentation and application support available for engineering integration
• Environmentally stable material with low contamination risk in industrial processes

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): BULK 20 MT
• Loading Capacity: 20–27 MT per 20ft container (depending on packaging format)