GWECO LLC
Calcined Alumina Powder
Calcined Alumina Powder technical grades and source-listed specifications for customer review.
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Calcined Alumina Powder is listed in GWECO’s Industrial & Refractory Materials Catalog, Revision 4 (October 2026), under Alumina Products.
Source-listed technical profile: TCH-33B.
Contact GWECO with the required grade, particle size, quantity and delivery destination to confirm current availability, packaging and shipment requirements.
GWECO did not perform the original testing. Source-reported results do not certify any particular shipment or production lot. Confirm current availability and shipment requirements with GWECO.
Available grades and sizes
TCH-33B
Technical specifications
Available sizes
Property |
|---|
CHEMICAL COMPOSITION REQUIREMENTS
Component | Specification |
|---|---|
Al₂O₃ (%) | ≥99.0 |
Na₂O (%) | ≤0.35 |
SiO₂ (%) | ≤0.15 |
Fe₂O₃ (%) | ≤0.02 |
CaO (%) | ≤0.02 |
A-Alumina | ≥95 |
PHYSICAL-PROPERTY REQUIREMENTS
Property | Specification |
|---|---|
Specific gravity (g/cm³) | ≥3.95 |
Primary crystal size (µm) | 3–5 |
D50 (µm) | 6–8 |
BET (m²/g) | 1.0–1.2 |
Moisture (%) | ≤0.1 |
LOI (%) | ≤0.1 |
Property |
|---|
TCH-33B
Separate commercial size options are not specified in the catalog for this grade.