Kyanite sand is granular industrial material processed from natural kyanite by crushing, screening and mineral separation. It is a key high-alumina refractory mineral famous for its unique high-temperature volume expansion characteristic, widely used in metallurgy, casting, construction materials and premium abrasive production.
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Processed from natural kyanite, kyanite sand is a high-alumina refractory raw material with special high-temp expansion performance, applicable to metallurgy, casting, building materials and high-end abrasives.
Refractory Products: Its irreversible thermal expansion prevents refractory cracking; used to produce mullite bricks, castables and ramming mixes for industrial kilns.
Metallurgy & Foundry: Applied in ladle linings and high-grade casting coatings to boost thermal shock resistance and high-temperature strength.
Construction Heat-resistant Materials: Added to high-temperature building materials to stabilize structure under intense heat.
High-end Grinding Tools & Special Ceramics: High hardness and stable thermal properties make it ideal for premium abrasives and industrial ceramics.
