The foundry applications of Chromite Sand
Chromite ore is a type of spinel ore containing chromium oxide, iron oxide, and small amounts of silicon and calcium. After breaking into small particles, it becomes sandy and is also known as chromite sand. Cr2O3 content min 46% chromite sand is for foundry. Due to its high refractory temperature, fast thermal conductivity and cooling rate, solid-state sintering, and low coefficient of expansion, chromite sand is considered a good casting sand and surface sand for steel castings.