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Product introduction of high alumina powder
High alumina powder is the main raw material for manufacturing casting coatings, refractory bricks, main materials, ridge materials, refractory furnace materials, refractory materials and other amorphous refractory materials.
Features of high alumina powder
High alumina powder is prepared from high alumina concentrate by crushing, ironmaking and other processing processes. It has the characteristics of high aluminum content, low iron content, high hardness, low coefficient of thermal expansion, high refractoriness, and stable thermo chemical properties.
Common sizes of high alumina powder
Common size: 0.150mm, 0.016mm, 0.075mm, 0.053mm, 0.045mm; Other dimensions can also be processed as required.
Parameters of high alumina powder
| 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 |