Calcined Alumina
α-Al₂O₃
High-purity calcined alumina supplied for advanced ceramics, refractory castables, abrasives, and precision polishing applications.
Overview
Calcined alumina is produced by calcining aluminium hydroxide to form stable alpha-Al₂O₃, with controlled particle size, purity, and crystal structure. It is the primary alumina material for technical ceramics, high-purity refractory castables, abrasive grains, and precision polishing applications requiring maximum hardness and chemical purity.
Source Details
Source Name
Calcined Alumina Supply
Region / Country
Multi-Origin, India / China / Australia
Dispatch Ports
Mundra, Kandla, Nhava Sheva
Sourcing Note
Available in standard, reactive, and low-soda grades by Al₂O₃ purity, alpha content, and PSD.
Quality Parameters
| Parameter | Typical Range / Content |
|---|---|
| Al₂O₃ | 99.0–99.6% min |
| Na₂O | <0.5% |
| SiO₂ | <0.03% |
| Fe₂O₃ | <0.03% |
| D50 / BET | As per application |
* Final chemistry, sizing, and commercial grade are supplied subject to confirmed assay, origin, and buyer application.
Applications
Technical Ceramics
Primary alumina for substrate, wear part, and electronic ceramic applications.
Refractory Castables
Key ingredient in ultra-high purity refractory systems for petrochemical furnaces.
Abrasives & Polishing
Used in precision lapping, polishing, and abrasive grain applications.
Industries Served
Technical Documentation
Access detailed technical specifications, safety data sheets (SDS), and certificate of analysis (COA) examples.
Commercial Details
Packaging Options
- 25 kg bags
- 50 kg bags
- 1 MT jumbo bags
Export Availability
Containerized supply available for advanced ceramic and refractory buyers
Contact Sales
Request Calcined Alumina Supply
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