85 High Alumina Brick by Xintai Refractory is a superior-grade refractory material with Al₂O₃ content ≥85%, delivering exceptional performance in the harshest thermal conditions. With extremely high refractoriness and mechanical strength, it is specifically designed for applications exposed to continuous high temperatures, chemical corrosion, and mechanical stress, such as steel furnaces and non-ferrous metallurgy.

Technical Specifications

Item	85 High Alumina Brick
Brand	Xintai
Al₂O₃ Content	≥ 85%
Bulk Density	2.80–2.90 g/cm³
Cold Crushing Strength	≥ 800 kg/cm²
Working Temperature	Up to 1800ºC
Classification Temp.	~1800ºC
Size	230×114×65 mm (standard) / Custom
Color	Light Buff / Pale Yellow
Certification	ISO9001 / ISO14001 / ISO45001 / ISO50001
Sample	Available on request

Key Features

Ultra-High Alumina Content: Ensures maximum refractoriness and chemical resistance.
Exceptional Thermal Performance: Operates at temperatures up to 1800°C.
High Mechanical Strength: Excellent resistance to abrasion and crushing in high-load environments.
Corrosion Resistance: Performs well in slag, alkaline, and acidic atmospheres.
Long Service Life: Withstands prolonged exposure without degradation or dimensional change.

Typical Applications

Steelmaking furnaces and refining ladles
Glass and petrochemical kilns
Copper, zinc, and aluminum smelting furnaces
Regenerative chambers and hot blast stoves
High-load furnace hearths and burner zones

Production Details

Manufactured using ultra-pure bauxite and synthetic materials, 85 High Alumina Bricks are pressed and fired at temperatures exceeding 1600°C. Strict quality assurance procedures including X-ray fluorescence (XRF) and strength testing guarantee reliable performance.