Ceramic foundry sand

Size:#200-#1500 AFS15-AFS170

Main Chemical Composition:
Al2O3:70-85%
SiO2:5%-20%
Fe2O3:5%max
TiO2 :5%max


Physical Properties:
Shape:ball, spherical
Angularity: 1.1 max, similar to ball
Bulk Density:1.95-2.05(g/cm3)
Refractoriness: 1790 C min
Thermal expansion: 0.13% (10 min at 1000 C )
Application:
Waterglass bonded sand, resin bonded sand, precision casting, Expendable Pattern Casting (EPC), Copper and Aluminium articles casting treatment.
Advantages:
1,replacement of Quartz Sands and Silica Sands
2,Low thermal expansion rate
3,high refractoriness
Ceramic foundry sand