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By certification 
Specifications
Chemical Al2O3: 70% min ; Fe2O3: 5% max TiO2:5%max SiO2 (%)：8~20%
MgO Content (%)：0.5%max CaO (%):0.5%max K2O:0.5%max Na2O:0.5%max
Grain type: ball, spherical
Angularity: 1.1 max, similar to ball
Packing density: 1.95-2.05 g/cm3
Refractoriness: 1790 C min
Thermal expansion: 0.13% (10 min at 1000 C )
Size: 10-14 mesh; 20-30 mesh; 30 mesh; 40-70 mesh; 100-140 mesh; 170 mesh
Description
Ceramic Foundry sand is made from fine bauxite, by re-fused and blown to ball type. With advantage of fine surface smooth finish and air permeability, it is a new type casting material for precision casting, coated sand and self hardening sand etc.
Advantages
Spherical grain, low thermal expansion, good anti-breakness, well refractory, low density, neutral materials
Application
Waterglass bonded sand, resin bonded sand, precision casting, Expendable Pattern Casting (EPC), Copper and Aluminium articles polishing
Packing
25kg/bag or others
Chemical Al2O3: 70% min ; Fe2O3: 5% max TiO2:5%max SiO2 (%)：8~20%
MgO Content (%)：0.5%max CaO (%):0.5%max K2O:0.5%max Na2O:0.5%max
Grain type: ball, spherical
Angularity: 1.1 max, similar to ball
Packing density: 1.95-2.05 g/cm3
Refractoriness: 1790 C min
Thermal expansion: 0.13% (10 min at 1000 C )
Size: 10-14 mesh; 20-30 mesh; 30 mesh; 40-70 mesh; 100-140 mesh; 170 mesh
Description
Ceramic Foundry sand is made from fine bauxite, by re-fused and blown to ball type. With advantage of fine surface smooth finish and air permeability, it is a new type casting material for precision casting, coated sand and self hardening sand etc.
Advantages
Spherical grain, low thermal expansion, good anti-breakness, well refractory, low density, neutral materials
Application
Waterglass bonded sand, resin bonded sand, precision casting, Expendable Pattern Casting (EPC), Copper and Aluminium articles polishing
Packing
25kg/bag or others
