| Model: | Grit and micro |
|---|---|
| Brand: | FR |
| Origin: | Made In China |
| Category: | Industrial Supplies / Tools / Abrasives |
| Label: | desen corundum , refractory , abrsive |
| Price: |
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|
| Min. Order: | 20 pc |
| Last Online:01 Nov, 2013 |
Dense corundum, with a-AL2O3, as main principle crystalline phase, gray, is characterized by high melting point,high bulk density, low apparent porosity,excellent wear resistance,slag resistance, steady volume and thermal shock resistance. It is an excellent refractory material in corundum series.
CHARACTER:
It is characterized by high refractoriness, high bulk density, High thermal shock resistance,High wear-resistance ,high purity and High chemical resistance,complete crystal tabularization and low porosity
APPLICATION
It has been widely used as the material of choice in unshaped and shaped high performance refractories used in a variety of industries (steel, foundry, cement, glass, petrochemical, ceramic and waste incineration). Other common non-refractory applications include its use in kiln furniture and for metal filtration.
It is the preferred material to substitute for imported sintered alumina.
| Item | Unit | Index | Typical | |
|
Chemical composition |
Al2O3 | % | 99.00min | 99.5 |
| SiO2 | % | 0.20max | 0.09 | |
| Fe2O3 | % | 0.10max | 0.07 | |
| Na2O | % | 0.30max | 0.20 | |
| CaO | % | 0.1max | 0.03 | |
| MgO | % | 0.1max | 0.06 | |
| R2O | % | 0.3max | 0.20 | |
| Magnestic | % | 0.02max | 0.01 | |
| Bulk density | g/cm3 | 3.50min | 3.59 | |
| Absorbing water rate | % | 1.0max | 0.7 | |
| Porosity rate | % | 4.0max | 3.00 | |
| Grain size | mm | 5-3mm,3-1mm,1-0mm,2-1mm,1-0.5mm,
0.6-0.2mm,0.5-0mm,0.3-0mm, |
||
| Fine powder | mesh | - 220mesh, -325mesh | ||
