What are the characteristics of South African chromite sand?
chromite sand origin：south africa
It has high refractory resistance, low thermal expansion coefficient, does not react with metal oxides, and can effectively prevent casting defects such as veining, sand inclusions, and sand sticking.
Adding an appropriate amount of South African chromite sand to the molding sand can be used to prepare cast steel and cast iron facing sand. Adding an appropriate amount of South African chromite sand to the mixture can effectively prevent thermal expansion casting defects.