High aluminum content
High fire resistance
High hardness
High Alumina Powder
Description
High-alumina powder is made of high-alumina bauxite clinker through crushing, iron removal and other processing techniques.
Features
High aluminum, low iron, high hardness
Low coefficient of thermal expansion
High refractoriness
Stable thermochemical properties
Specification
| Grades | AL2O3 content % | Fe2O3 content % | Ti02 content % | CaO+MgO content % | K20+Na20 content % | Bulk density g/cm3 | Water absorption % |
|---|---|---|---|---|---|---|---|
| GAL-88 | ≥88 | ≤1.5 | ≤4.0 | ≤0.4 | ≤0.4 | ≥3.15 | ≤4 |
| GAL-85 | ≥85 | ≤1.8 | ≤4.0 | ≤0.4 | ≤0.4 | ≥3.10 | ≤4 |
| GAL-80 | ≥80 | ≤2.0 | ≤4.0 | ≤0.5 | ≤0.5 | ≥2.90 | ≤5 |
| GAL-70 | >70~80 | ≤2.0 | – | ≤0.6 | ≤0.6 | ≥2.75 | ≤5 |
| GAL-60 | >60~70 | ≤2.0 | – | ≤0.6 | ≤0.6 | ≥2.65 | ≤6 |
| GAL-50 | >50~60 | ≤2.5 | – | ≤0.6 | ≤0.6 | ≥2.45 | ≤6 |
Application
High alumina powder is the main raw material for manufacturing casting coatings, refractory bricks, castables, iron trench materials, refractory furnace materials, refractory materials and other unshaped refractory materials.
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