Product description
White Fused Alumina white Aluminum F220 Sand White Corundum Grain/sand Bonded Abrasives and Coated abrasives is made of 99% aluminum oxide powder as raw material, which is refined and crystallized by electric melting (thus white corundum is also called fused alumina and white fused alumina).
1. The Al2O3 purity is high(99%min). So the hardness & grinding ability is high with good grinding efficiency.
Chemical indicators of White Fused Alumina white Aluminum F220 Sand White Corundum Grain/sand Bonded Abrasives and Coated abrasives | |
AL2O3 | 99.62% |
Fe2O3 | 0.02% |
Na2O | 0.18% |
K2O | 0.01% |
SiO2 | 0.07% |
CaO | 0.02% |
Physical Index of White Fused Alumina white Aluminum F220 Sand White Corundum Grain/sand Bonded Abrasives and Coated abrasives | |
Hardness | Mohs:9.0 |
Maximum service temperature: | 1900 °C |
Melting Point: | 2250 °C |
Specific Gravity: | 3.95g/cm3 |
Volume density | 3.6g/cm3 |
Whiteness | 85% |
Ph Value | 7.53 |
F220 | +75um | ≤15% | +63um | * | +63+53um | ≥40% | -45um | * |
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