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Sand Type: | Manufactured Sand |
Fire resistance: | 1750 degrees |
Type: | Sand |
Product name: | Mullite Sand |
Appearance: | Particle / powder |
Color: | White, yellow |
Characteristic: | High fire resistance, high aluminum content and low iron content |
Advantage: | Cast castings are easy to be shelled, not deformed, not easy to scale, good finish and high yield. |
Purpose: | Refractory, ceramics, metallurgy, casting, electronics and other industries |
Chemical composition: | Generally, 46% ≥ Al2O3 ≥ 42%, 53% ≥ SiO2 ≥ 51%, 1.2 ≤ fe2o31 ≤ 1.5%, Na2O + K2O ≤ 0.3%, CaO + MgO2 ≤ 0.6%, TiO2 ≤ 0.1%. |
Physical index: | Density ≥ 2.5g/cm3, true specific gravity > 2.6g/cm3, water content < 0.03%, fire resistance ≥ 1750 ℃, ignition loss ≤ 0.3-0.4%, dust content ≤ 0.01-0.03%, pH value 7-9, shell hardness > 8.0MPa. |