Materials | Soda Lime | PPG Starfire Soda Lime Glass

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

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/[email protected].
Alkali Resistance	N/A	Dielectric Strength	0.5 KV/mm

Chemical Properties

Hydrolytic Resistance

Class 3

Dielectric Constant

E=5.7 MHz @R.T.

Acid Resistance

N/A

Resistivity

106 -108 ohms/[email protected].

Alkali Resistance

N/A

Dielectric Strength

0.5 KV/mm

Optical Properties
Refractive Index	1.5183 (589.3 nm)

Optical Properties

Refractive Index

1.5183 (589.3 nm)