Pink fused alumina is made from alumdum as main material, being added with 0.5%—2% oxidized chromium , and melting in an electric arc furnace.It is a kind of rosy crystal with approximate hardness and higher crisp than white fused alumina, and its rosy color will become lighter as the grains minish.
The main chemical composition of pink fused alumina is Al2O3, the usually content of Al2O3 is 98%, other substances such as oxidized chromium and bonded spinel accounts for less than 2%.Most of the pink fused alumina on the market now is man-made product.
Physical Index of Pink Fused Alumina
Color Pink
Basic Mineral a-Al2O3
True Density 3.90g/cm3
Bulk Density 1.40-1.95g/cm3
Mohs Hardness 9.0
Microhardness HV2200-2300
Typical Chemical Composition of Pink Fused Alumina
Al2O3 98.5%
Cr2O3 0.15-1.50%
Na2O 0.50%
