Alumina Properties: The Engineer’s Data Hub for Grade Selection

The six commercial alumina grades we produce (95%, 97%, 99%, 99.5%, 99.7%, and 99.99%) span a wide performance range. Density runs from 3.62 to 3.95 g/cm³, Vickers hardness HV 1410 to 1660, bending strength 292 to 392 MPa, and dielectric strength 17.84 to 24.38 kV/mm. Every value below is grade-specific, drawn from our internal quality

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