Brand: haixu abrasives
Model: AFS40-45AFS45-50
Price: USD 300 / ton
Min. Order: 1 ton
chromite sand
foundry chromite sand
Chromite Sand origin： South Africa.
We are chromite sand manufacturer, we import chrome ore from south africa ,then crushing and sieving in lianyungang china
Chromite Sand is a naturally occurring mineral consisting primarily of the oxides of chrome and iron. Its properties enable the material to be used in high duty grey iron and steel foundries as a core and mould making sand. Its high thermal conductivity gives it good chilling properties whilst its low thermal expansion gives rise to good dimensional stability. Its basicity being close to neutral allows the use of a wide range of resin bonding systems and inorganic binders.

Chromite sand advantages:
Good thermal conductivity
Good resistance to thermal shock
Excellent resistance to metal penetration or burn-on
Resists slag attack
High dimensional stability
Chromite sand physical-chemical index
Item Index
Cr2O3 ≥46.0%
SiO2 ≤1.0%
FeO ≤26.5%
CaO ≤0.30%
MgO ≤10.0%
Al2O3 ≤15.5%
P ≤0.003%
S ≤0.003%
Cr/Fe 1.55:1
Bulk Density 2.5-3
Color Black
PH 7-9
The amount of the acid ≤ 2 ML
Percent soil ≤0.1%
Percent Moisture ≤0.1%
The sintered 1600℃
Percentage of free acid present in the sand 0
filling density    2.6g/cm³
sintering point       > 1800°C
melting temperature    2180°C
Avaliable sizes
AFS25-35 AFS30-35 AFS35-40 AFS40-45 AFS45-50 AFS45-55 AFS50-55 AFS55-60 AFS60-65 AFS60-70