Bevel:

Protective as needed

Clear Aperture (%):

90

Clear Aperture CA (mm):

11.25

Diameter (mm):

12.50 ±0.127

Thickness (mm):

1.10 Nominal

Coating:

Uncoated

Coefficient of Thermal Expansion CTE (10^-6/°C):

8.8 (+20 to +300°C)

Density (g/cm³):

2.48

Edges:

Fine Ground

Index of Refraction n_d:

1.51

Knoop Hardness (kg/mm²):

639

Poisson's Ratio:

0.215

Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More

SCHOTT Xensation®

Surface Quality:

80-50

Transformation Temperature (°C):

615

Type:

Protective Window

Wavelength Range (nm):

380 - 840

Young's Modulus (GPa):

74

12.5mm Dia., 1.1mm Thick, Uncoated, SCHOTT Xensation® Chemically Strengthened Window