Sell Foundry sand chromite sand for casting

Chromite sand , Is a special kind of sand for casting , It is a natural spinel mainly composed of chromite ,It is crushed , ground and screened into specified grain size , which is suitable for molding (core-making ) sand
Chrome ore sand ,Its main chemical composition is Cr2O3, This kind of sand heating volume is stable , High thermal conductivity , sand molten metal contact , not only has a good alkali slag resistance , not with iron oxide and other chemical reaction , and itself has the characteristics of solid phase sintering , can well prevent the penetration of molten metal , avoid sand defects , suitable for all kinds of stainless steel , Alloy steel and carbon steel gradually modeling core sand and paint .

Component  Cr2O3  SiO2  MgO  Fe2O3  Al2O3  P  S  Density
Indicators  46%Min   1% Max  10% Max  26.5% Max  15.5%Max  0.003% Max  0.003% Max  2.5-3g/cm³