What can brown raw materials be used for?
Brown Corundum for Abrasives
Due to its good toughness, balanced thermal conductivity and crack resistance, and the fact that its production involves melting in an electric arc furnace, rapid cooling, crushing, and grading, brown fused alumina is a raw material commonly used in resin grinding wheels (from rough to fine grinding), ceramic grinding wheels, metal deburring, and roughing before grinding and polishing. As a professional manufacturer, we provide customers with a "particle size → typical working conditions → recommended combination system" table for easier reference by purchasing and formulation engineers.
For wholesale customers worldwide, we can provide particle size tables and PSD curves, indicating commonly used mesh sizes (#36–#240) or μm grades. Regarding hardness, we can achieve Mohs ≈ ~9.0, and can provide professional microhardness test values. Toughness and friability affect the overall service life of brown fused alumina for grinding.
As a raw material manufacturer, for export, we can provide data on soluble salt and heavy metal safety values (ppm), minimum order quantity, packaging (25 kg / 1 MT bulk bag), annual production capacity, and delivery time for customized customers to choose from.
Brown Corundum for Refractory
Its excellent performance makes it suitable for a wider range of professional fields. In castables/self-flowing materials: fine/medium particle size is preferred to improve flowability and density.
Refractory brick and module aggregates: medium/coarse particle size is used as aggregate to improve wear resistance and thermal shock resistance.
Furnace lining repair materials: particle size is selected in conjunction with the cementing system to shorten maintenance time and improve strength.
The typical chemical composition of brown fused alumina used in refractory materials is 85–92% Al₂O₃, with low impurity content such as Fe₂O₃, SiO₂, CaO, TiO₂, etc., generally presented in ICP/OES or XRF reports (ppm or %). Particle size determines the proportion, flowability, and density. The most typical bulk density/true density can be 3.6–3.9 g/cm³, used for volume conversion and formulation design.
When dealing with procurement, we can provide downloadable chemical reports, PSD curves, thermal shock/thermal expansion reports, and third-party testing certificates (such as SGS/CTI).
