Available sizes of type BS-64 grinding balls: 3 mm, 6 mm, 10 mm, 12 mm, 16 mm, 20 mm, 25 mm, 30 mm, 40 mm, 50 mm, 60 mm and 70 mm. Minimum order quantity 100 kg per size.
Main specifications of Steatite Grinding Balls Type BS-64
Material Properties | Units | Steatite C-220 |
---|---|---|
Specific gravity | g/cm3 | 2,55 |
Open Porosity | max. Vol.% | 0 |
Flexural strength | min. Gpa | 80 |
Young modulus | min. N/mm2 | 120 |
Coefficient of lineair thermal expansion (20ºC to 600ºC) | 10(-6)K(-1) | 7 – 9 |
Mohs hardness | Scale | >7 |
Thermal Conductivity (20ºC to 100ºC) | W/m.K | 3 |
Chemical and Main Specification | Value | |
---|---|---|
SiO2 | max. 64% | |
MgO | max. 31% | |
AL2O3 | 4% | |
Fe2O3 | <1.4% | |
Na2O + K2O | 1.2% | |
CaO |

Example of Steatite Grinding ball 70mm BS-64 70mm. Its weight is approx 470 grams a piece.