Schott LLF1 Glass

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Schott LLF1 Glass
Categories:	Ceramic; Glass
Material Notes:	Information Provided by SCHOTT North America, Inc.
Key Words:	548458.294
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Physical Properties	Metric	English	Comments

Density	2.94 g/cc	0.106 lb/in³

Chemical Properties	Metric	English	Comments
Acid Class, SR	1.0	1.0
Alkali Class, AR	2.0	2.0
Stain Resistance Class, FR	0.00	0.00

Mechanical Properties	Metric	English	Comments
Knoop Microhardness	450	450	.1/20
Modulus of Elasticity	60.0 GPa	8700 ksi
Poissons Ratio	0.208	0.208
Shear Modulus	25.0 GPa	3630 ksi	calculated

Thermal Properties	Metric	English	Comments
CTE, linear	8.10 µm/m-°C @Temperature -30.0 - 70.0 °C	4.50 µin/in-°F @Temperature -22.0 - 158 °F
	9.20 µm/m-°C @Temperature 20.0 - 300 °C	5.11 µin/in-°F @Temperature 68.0 - 572 °F
Specific Heat Capacity	0.650 J/g-°C	0.155 BTU/lb-°F
Transformation Temperature, Tg	431 °C	808 °F
Softening Point	628 °C	1160 °F	Viscosity 10^7.6 dPa s
Annealing Point	426 °C	799 °F	Viscosity 10^13.0 dPa s

Optical Properties	Metric	English	Comments
Refractive Index	1.54814 @Wavelength 587.6 nm	1.54814 @Wavelength 587.6 nm	n_d
	1.55099 @Wavelength 546.1 nm	1.55099 @Wavelength 546.1 nm	n_e
Abbe Number	45.47	45.47	ve
	45.75	45.75	vd
Optical Dispersion	0.011981	0.011981	nf - nc
	0.012118	0.012118	nf' - nc'
Transmission, Visible	99.5 % @Thickness 10.0 mm, Wavelength 380 nm	99.5 % @Thickness 0.394 in, Wavelength 380 nm
	99.8 % @Thickness 10.0 mm, Wavelength 405 nm	99.8 % @Thickness 0.394 in, Wavelength 405 nm
	99.8 % @Thickness 10.0 mm, Wavelength 460 nm	99.8 % @Thickness 0.394 in, Wavelength 460 nm
	99.9 % @Thickness 10.0 mm, Wavelength 580 nm	99.9 % @Thickness 0.394 in, Wavelength 580 nm
	99.9 % @Thickness 10.0 mm, Wavelength 700 nm	99.9 % @Thickness 0.394 in, Wavelength 700 nm
IR Transmittance	75.8 % @Thickness 10.0 mm, Wavelength 2500 nm	75.8 % @Thickness 0.394 in, Wavelength 2500 nm
	99.6 % @Thickness 10.0 mm, Wavelength 1530 nm	99.6 % @Thickness 0.394 in, Wavelength 1530 nm
UV Transmittance	2.4 % @Thickness 10.0 mm, Wavelength 300 nm	2.4 % @Thickness 0.394 in, Wavelength 300 nm
	91.9 % @Thickness 10.0 mm, Wavelength 334 nm	91.9 % @Thickness 0.394 in, Wavelength 334 nm
	99.4 % @Thickness 10.0 mm, Wavelength 370 nm	99.4 % @Thickness 0.394 in, Wavelength 370 nm

Descriptive Properties
B	1
Climatic Resistance Test CR	1
HG	3
K (10^-6mm²/N)	3.05
Phosphate Resistance PR	1

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