Calcined Alumina – Metallurgical Grade

Metallurgical Grade Calcined Alumina (Sandy Type) supplied in loose bulk, offering excellent flowability, high thermal stability, consistent bulk density, and low impurity levels. Suitable for smelting, refractory, ceramic, abrasive, and metallurgical applications.

Product Description

SGT supplies Metallurgical Grade Calcined Alumina (Sandy Type) in loose bulk, sourced from trusted producers known for consistent high-temperature calcination and stable chemical profiles. This material is a critical input for aluminium smelting, alloy production, refractories, ceramics, abrasives, and applications that demand high purity, thermal stability, and controlled particle size distribution.

Produced through the calcination of alumina hydrate, this sandy-type alumina offers excellent hardness, uniform morphology, and reliable flow characteristics—making it suitable for dry scrubbing systems, smelter-grade processes, and various metallurgical operations. Its high alpha-phase content ensures strong performance under elevated temperatures, low impurity levels, and predictable reactivity.

SGT ensures reliable high-seas trading, shipment consistency, and strict adherence to global metallurgical standards—making our sandy-type calcined alumina a trusted choice for smelters, alloy producers, and industrial manufacturers worldwide.

Technical Specification

Product Type

  • Metallurgical Grade Calcined Alumina (Sandy Type) 
  • Supplied in: Loose Bulk 
  • Attributes: 
    • Excellent flowability
    • High thermal stability
    • Consistent bulk density
    • Low impurity index
    • Suitable for smelting, refractory, ceramic, and abrasive applications

 

Chemical Composition

  • Alpha Al₂O₃: Typical 98.7%, Minimum 98.5%
  • 45 µm (Fines): Typical 10%, Maximum 12%
  • Na₂O: Typical 0.38%, Maximum 0.50%
  • LOI + Moisture (Total): 0.5% – 1.0%

 

SGT ensures reliable high-seas trading, shipment consistency, and strict adherence to global metallurgical standards – making our sandy-type calcined alumina a trusted choice for smelters, alloy producers, and industrial manufacturers worldwide.