Glass Type: Soda lime
Description
STARPHIRE Ultra-Clear™ glass is an ultra-clear soda lime float glass product. Its high visible light transmittance (>91 % at 6 mm) and its brilliant azure edge are two characteristics unique to STARPHIRE Ultra-Clear™ glass. This glass is a low iron composition with mechanical and physical properties similar to ordinary clear soda lime float glass.
| Thermal Properties | Mechanical Properties | ||||||
|---|---|---|---|---|---|---|---|
| Thermal Coefficient of Expansion | (0/300°C): 32.5 X 10 -7/°C | Density | 2.51 g/cm3 (at 20°C/68°F) | ||||
| Annealing Point | 547°C /1017° F | Knoop Hardness | 448 kg/m m2 | ||||
| Softening Point | 710°C /1310° F | Young’s Modulus | 73.1 Gpa | ||||
| Strain Point | 513°C/ 955° F | Poisson’s Ratio | 0.22 | ||||
| Chemical Properties | |||||||
|---|---|---|---|---|---|---|---|
| Hydrolytic Resistance | Class 3 | Dielectric Constant | E=5.7 MHz @R.T. | ||||
| Acid Resistance | N/A | Resistivity | 106 -108 ohms/sq.@R.T. | ||||
| Alkali Resistance | N/A | Dielectric Strength | 0.5 KV/mm | ||||
| Optical Properties | |||
|---|---|---|---|
| Refractive Index | 1.5183 (589.3 nm) | ||
