Chromium Corundum

We are providing our clients fine quality Chromium Corundum. Chromium corundum, Pink Fused Alumina is electrically fused in high temperature, being added with the right quantity of oxidized chromium. It is pink. Its hardness is close to, but toughness higher than that of WA. The abrasive tools made of it feature excellent durability and high processing cleanness, which are suitable for the precision grinding of the measuring tolls, lathe main shafts, instruments and apparatus parts, threading work pieces and samplers, etc.
Chemical composition:
Low chromium,Middle chromium,High chromium
Al2O3 97.00% to 98.50%
Cr2O3 0.20% to 0.2%
Na2O 0.50% to 0.70%
Pink fused alumina physical properties:
Bacic mineral Alpha Al2O3
Crystal size 600 to 2000 micron
True density 3.9g/cm3
Bulk density 1.4 to 1.9g/cm3
Microhardness 2200 to 2300kg/mm2