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.

chromite flour has several uses, its main application is unquestionably as the critical ingredient in refractory coatings for foundry molds and cores, where it is essential for producing high-quality, complex, and clean steel castings.

chromite sand superior thermal stability, inertness, and durability justify its use in critical industrial processes