AFS20 AFS30 AFS40 Fused foundry partical ceramic sand
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: