Foundry Grade Chromite Sand (46% Cr₂O₃) is a high-performance, refractory aggregate of choice for solving thermal expansion, burn-on, and metal penetration defects in demanding ferrous castings.

Chromite sand originating from South Africa is a benchmark product in the global foundry industry. it is a naturally occurring spinel consisting primarily of the oxides of chrome and iron

Chromite sand is a special refractory sand used in metal casting, primarily for steel and high-alloy iron castings. It is valued for its unique combination of properties that address challenges found in traditional silica sand, such as burn-on defects and high thermal expansion.

 The use of Chromite Flour 325 mesh as a foundry coating (refractory coating) is a highly specialized and critical application, primarily in the production of high-quality steel and manganese steel castings. PHYSICAL PROPERTIES(TYPICAL)  AVERAGE CHEMICAL COMPOSITION(TYPICAL) PH 7-9 Cr2O3 ≥46.0% Color Black SiO2   ≤1.0% Acid Amount ≤2m Fe2O3 ≤28.5% Soil% ≤0.1 CaO ≤0.30% Bulk Density 2.5-3.0g/cm3 MgO

Foundry chromite sand in stock ：   Chromite sand loading in 20GP container:  

chromite sand reduces cleaning and finishing costs, improves casting yield, and contributes to producing a superior, defect-free hammer ready for heat treatment and service.