Chromite ore, also known as chromite ore, is a special sand for casting, is a natural spinel based on chromite, after crushing, grinding, screening into a specified size, suitable for molding (core) sand. Our factory uses the chrome ore imported from South Africa.Foundry chromite sand is a natural process products of chromite through the broken screen classification, its main chemical composition of Cr2O3, this sand heated volume stability, high thermal conductivity, not only when in contact with molten metal has the very good resistance to basic slag, not with ferric oxide and other chemical reactions, and itself has the characteristics of the solid phase sintering, can be a very good prevent the infiltration of molten metal, avoid to produce adhering sand defects.