Chromite Sand

Hevi-Sand® Chromite Sand is a versatile, unique aggregate, unlike ordinary chromite sands. Hevi-Sand is the only chromite brand that offers your business full life-cycle support, starting with our mine and ending in your mold. Combined with worldwide logistics and a global technical support team, these components work together to provide the highest-quality finished castings, saving your business both time and money. As part of our commitment and service to our valued customers, AMCOL Metalcasting provides expertise in all areas of the foundry, including but not limited to;

  • Methods and pattern design
  • Sand systems
  • Molding
  • Painting and closing
  • Pouring
  • Melting
  • After-cast processes
  • In-house training

Features & Benefits of Hevi-Sand®

The unique characteristics and proven performance of Hevi-Sand provides a means for foundrymen to cast tough jobs and produce high quality castings, compared to silica sand. Hevi-Sand prevents metal penetration and can be used with most foundry binders in molds and cores. Hevi-Sand offers low thermal expansion, low binder requirements, and significantly reduces overall cleaning costs. Other features and benefits include;

  • Excellent chilling characteristics can eliminate the need for metal chills
  • Chipping, grinding, and overall cleaning costs significantly reduced
  • Reduced gas defects due to minimal binder requirements along with excellent permeability
  • Preferred aggregate for large iron, steel, copper base and high alloy castings due to high resistance to penetration
  • Excellent peel characteristics and good surface finish due to superior resistance to metal oxides and slag
  • High thermal stability reduces expansion defects, enhancing overall dimensional accuracy

Hevi-Sand® Specification

  • Cr2O3 -46% min
  • SiO2 -1% max
  • AFS of 25-70 with a broad distribution
  • Low thermal expansion
  • High thermal conductivity