High density without bubbles
Low thermal expansion coefficient
Strong thermal shock stability
No deformation under high temperature
High Compressive Strength
Good wear resistance
Technical index
|
Index |
Unit |
Data |
|
SiO2 |
(wt%) |
>=99.7 |
|
Bulk Density |
(g/cm3) |
>1.95 |
|
Apparent Porosity |
(%) |
7-11 |
|
Compressive Strength |
(Mpa) |
≥60 |
|
High-temperature Bending Strength |
(Mpa) |
≥30 |
|
Coefficient of Thermal Expansion |
(×10-6/°C) |
<0.6 |
|
Surface Roughness Ra |
(u m) |
≤1.6 |
|
Diameter Tolerance |
(mm) |
±0.05 |
|
Circular Runout |
(mm) |
≤0.08 |
