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- < Refractory Materials and Abrasives - < Calcined Alpha Alumina
 
 

1. Calcined Alpha Alumina (Refractory grade)

Items Unit AD-1 AD-2 AD-3
Al2O3 % 99.7min 99.5min 99.0min
Na2O % 0.10max 0.15max 0.20max
SiO2 % 0.05max 0.08max 0.15max
Fe2O3 % 0.03max 0.03max 0.04max
True Density g/cm3 3.95 3.94 3.93
Alpha-Al2O3 % 95min 95min 94min
Particle μm 1 1-2 2-3

Packing: In 50Kgs bag or in 1MT big bag

2. Calcined Alpha Alumina (Ceramics grade)

Items Unit AD-13 AD-R23 AD-D23 AD-30 AD-32
Al2O3 % 99.7min 99.7min 99.7min 99.7min 99.8min
Na2O % 0.03max 0.08max 0.05max 0.08max 0.05max
SiO2 % 0.04max 0.05max 0.04max 0.05max 0.04max
Fe2O3 % 0.02max 0.03max 0.03max 0.03max 0.02max
True Density g/cm3 3.97 3.96 3.96 3.94 3.95
Alpha-Al2O3 % 96 95 96 95 96
Particle μm 3-5 2-3 2-4 1max 1-2

Packing: In 50Kgs bag or in 1MT big bag