Ceramic foundry sand is made of high quality bauxite, through the process of electrofusion, granulation, screening and so on,which is made of very ball-like refractory particles.
Ceramic foundry Sand for Casting Chemical and Physical index
Shape | Round |
Color | Dark brown |
Bulk density | 1.95-2.05g/cm3 |
Real density | 3.4g/cm3 |
Refractory temperature | ≥1800℃ |
Thermal expansion | 0.13% |
Thermal conductivity | 0.698W/M.K |
Angularity | ≤1.1 |
Chemical composition
Composition | Content(%) |
Al2O3 | >70 |
SiO2 | 15-25 |
Fe2O3 | <3 |
TiO2 | <3.5 |
CaO | <0.45 |
MgO | <0.35 |
K2O | <0.33 |
Na2O | <0.08 |
Ceramic foundry sand AFS30# price Contact Us: