Description:
Ceramsite sand is a kind of fused ceramic sand,it is made from calcined bauxite with main content aluminium oxide processed by melting,blowing,sieving and blending.
Ceramsite sand Physical and Chemical Composition
| Chemical Analysis[%] | |
| Al2O3 | 70-75 |
| SiO2 | 8-20 |
| Fe2O3 | ≤3 |
| TiO2 | ≤3.5 |
| CaO | ≤0.45 |
| MgO | ≤0.35 |
| K2O | ≤0.33 |
| Na2O | ≤0.08 |
| Physical Properties | |
| Grain shape | Spherical Ball |
| Roundness | 90% |
| Refractoriness: | ＞1790℃ |
| Shape Coefficient | ≤1.1 |
| Thermal Expansion Ratio | 0.13%（Heated up for 10 min at 1000℃） |
| Thermal expansion coefficient | 6×10-6 /℃(20-1000℃) |
| Thermal conductivity | 0.698W/M.K(1200℃) |
| Specific Gravity:: | 1.95-2.05g/cm3 |
| Bulk density(LPD): | 3.4 g/cm3 |
| Color: | Black |
| AVAILABLE SIZES | |
| AFS25-35,AFS35-45,AFS45-55,AFS55-65,AFS60-70,AFS70-80,AFS95-110 Customized sizes are available upon request | |
| sieve(#) | 10 | 20 | 30 | 40 | 50 | 70 | 100 | 140 | 200 | 270 | PAN | AFS |
| um | 1700 | 850 | 600 | 425 | 300 | 212 | 150 | 106 | 75 | 53 | PAN | |
| 20-40 | 15-40 | 30-55 | 15-35 | ≤3 | 15-25 | |||||||
| 30-50 | ≤10 | 25-45 | 35-55 | 5-15 | ≤5 | ≤2 | 25-29 | |||||
| 40-70 | ≤10 | 25-45 | 20-40 | 5-25 | ≤7 | ≤5 | 35-39 | |||||
| 40-100 | ≤3 | 10-25 | 25-40 | 25-45 | 10-25 | ≤10 | ≤5 | 45-55 | ||||
| 50-100 | ≤10 | 10-30 | 30-50 | 15-35 | ≤15 | ≤5 | ≤2 | ≤1 | 55-65 | |||
| 50-140 | ≤8 | 10-25 | 20-45 | 20-45 | 5-20 | ≤7 | ≤2 | ≤1 | 60-70 | |||
| 70-140 | ≤10 | 10-25 | 25-45 | 15-35 | ≤15 | ≤5 | ≤2 | 75-85 | ||||
| 100-200 | ≤3 | 10-35 | 35-55 | 15-35 | ≤10 | ≤5 | 95-115 | |||||
| 140-270 | ≤5 | 5-25 | 40-60 | 25-40 | ≤15 | 155-175 | ||||||
| 6-20 | for lost foam casting | |||||||||||