Foundry Grade South Africa Chromite Sand Price / Casting Chromite Sand AFS45-50 Chromite Sand is a naturally occurring spinel consisting primarily of the oxides of chrome and iron. It is a by-product of ferro-chrome production and is mainly used in foundry applications and in glass production. Cr2O346.0% SiO21.0% FeO26.5% CaO0.30% MgO10.0% Al2O315.5% P0.003% S0.003% SIZES:AFS30-35 AFS35-40 AFS40-45 AFS45-50 AFS50-55 AFS55-60 AFS60-65 PACKING:1MT big bag