Refractory Raw MaterialsAlumina raw materials
Activated Alumina Powder
Activated alumina powder is supplied as a refractory raw material in four models, RSAA-1 to RSAA-4, each with warranted and typical values in the specification below.
- Grades / types
- RSAA-1, RSAA-2, RSAA-3, RSAA-4
- Values
- Warranted and typical for each model
Product overview
Activated alumina powder is supplied as a refractory raw material in the models RSAA-1, RSAA-2, RSAA-3 and RSAA-4. For each model the catalogue states warranted and typical values for chemistry, D50 particle size, particle distribution characterization, α-Al₂O₃ phase content and true density.
Technical data
| Property | Unit | RSAA-1 Warranted | RSAA-1 Typical | RSAA-2 Warranted | RSAA-2 Typical | RSAA-3 Warranted | RSAA-3 Typical | RSAA-4 Warranted | RSAA-4 Typical |
|---|---|---|---|---|---|---|---|---|---|
| Al₂O₃ | % | ≥99.50 | 99.52 | ≥99.50 | 99.6 | ≥99.50 | 99.53 | ≥99.50 | 99.66 |
| K₂O+Na₂O | % | ≤0.20 | 0.13 | ≤0.20 | 0.14 | ≤0.25 | 0.15 | ≤0.15 | 0.10 |
| Fe₂O₃ | % | ≤0.05 | 0.02 | ≤0.05 | 0.02 | ≤0.08 | 0.03 | ≤0.05 | 0.02 |
| SiO₂ | % | ≤0.15 | 0.08 | ≤0.15 | 0.08 | ≤0.15 | 0.09 | ≤0.15 | 0.07 |
| D50 | μm | ≤2.0 | 1.7 | 2.0-3.0 | 2.4 | 3.0-5.0 | 3.5 | 2.0-3.0 | 2.5 |
| Particle Distribution Characterization | single-peak | single-peak | single-peak | single-peak | single-peak | single-peak | double-peak | double-peak | |
| α-Al₂O₃ Phase | % | ≥93 | 95 | ≥93 | 95 | ≥93 | 96 | ≥93 | 96 |
| True density | g/cm³ | ≥3.93 | 3.96 | ≥3.93 | 3.96 | ≥3.93 | 3.96 | ≥3.94 | 3.97 |
- The specification has a two-level header (model, then Warranted / Typical); each pair is shown here as two columns.
- Particle distribution characterization is stated once per model in the specification and is repeated in both of that model's columns.
- The specification uses the word "Warranted"; it is kept as printed.
Available grades, shapes and sizes
Available grades
- RSAA-1
- RSAA-2
- RSAA-3
- RSAA-4
Related products
Refractory Raw Materials
Tabular Alumina
Tabular alumina is supplied as a refractory raw material in two forms, grain and fine powder, according to the specification below.
View ProductGradesGrain · Fine Powder
Refractory Raw Materials
White Fused Alumina (WFA)
White fused alumina (WFA) is supplied as a refractory raw material in two forms, grain and fine powder, according to the specification below.
View ProductGradesGrain · Fine Powder
Technical Consultation
Discuss your requirement with our technical team
Share your application, service conditions and quantities. Our engineers confirm the suitable grade and return a structured quotation.
Request a quote for prices and lead times, a TDS for the grade’s data sheet, or technical information for a selection or specification question.
Technical data sheets are supplied on request with the quotation.Request TDS