Songhan Plastic Technology Co.,Ltd.
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Schott LAFN7 Glass

Category Ceramic , Glass
Manufacturer Schott North America
Trade Name
Port Shanghai port,China
Trade Terms EXW, FOB, CFR, CIF
Payment Terms L/C, T/T, PayPal
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Material Notes:
Information Provided by SCHOTT North America, Inc.
Physical Properties Metric English Comments
Density 4.38 g/cc
0.158 lb/in³
Mechanical Properties Metric English Comments
Knoop Microhardness 520
520
.1/20
Modulus of Elasticity 80.0 GPa
11600 ksi
Poissons Ratio 0.28
0.28
Shear Modulus 31.0 GPa
4500 ksi
calculated
Thermal Properties Metric English Comments
CTE, linear 5.30 µm/m-°C
<br>@Temperature -30.0 - 70.0 °C
 2.94 µin/in-°F
<br>@Temperature -22.0 - 158 °F
6.40 µm/m-°C
<br>@Temperature 20.0 - 300 °C
 3.56 µin/in-°F
<br>@Temperature 68.0 - 572 °F
Thermal Conductivity 0.770 W/m-K
5.34 BTU-in/hr-ft²-°F
Transformation Temperature, Tg 500 °C
932 °F
Optical Properties Metric English Comments
Refractive Index 1.7495
<br>@Wavelength 587.6 nm
 1.7495
<br>@Wavelength 587.6 nm
 n&lt;sub&gt;d&lt;/sub&gt;
1.75458
<br>@Wavelength 546.1 nm
 1.75458
<br>@Wavelength 546.1 nm
 n&lt;sub&gt;e&lt;/sub&gt;
Transmission, Visible 84.2 %
<br>@Thickness 10.0 mm,<br> Wavelength 380 nm
 84.2 %
<br>@Thickness 0.394 in,<br> Wavelength 380 nm
95 %
<br>@Thickness 10.0 mm,<br> Wavelength 405 nm
 95 %
<br>@Thickness 0.394 in,<br> Wavelength 405 nm
99.3 %
<br>@Thickness 10.0 mm,<br> Wavelength 460 nm
 99.3 %
<br>@Thickness 0.394 in,<br> Wavelength 460 nm
99.8 %
<br>@Thickness 10.0 mm,<br> Wavelength 580 nm
 99.8 %
<br>@Thickness 0.394 in,<br> Wavelength 580 nm
99.8 %
<br>@Thickness 10.0 mm,<br> Wavelength 700 nm
 99.8 %
<br>@Thickness 0.394 in,<br> Wavelength 700 nm
IR Transmittance 38.2 %
<br>@Thickness 10.0 mm,<br> Wavelength 2500 nm
 38.2 %
<br>@Thickness 0.394 in,<br> Wavelength 2500 nm
98.4 %
<br>@Thickness 10.0 mm,<br> Wavelength 1530 nm
 98.4 %
<br>@Thickness 0.394 in,<br> Wavelength 1530 nm
UV Transmittance 12.5 %
<br>@Thickness 10.0 mm,<br> Wavelength 350 nm
 12.5 %
<br>@Thickness 0.394 in,<br> Wavelength 350 nm
54.6 %
<br>@Thickness 10.0 mm,<br> Wavelength 365 nm
 54.6 %
<br>@Thickness 0.394 in,<br> Wavelength 365 nm
69.3 %
<br>@Thickness 10.0 mm,<br> Wavelength 370 nm
 69.3 %
<br>@Thickness 0.394 in,<br> Wavelength 370 nm
Chemical Properties Metric English Comments
Acid Class, SR 53.3
53.3
Alkali Class, AR 2.2
2.2
Stain Resistance Class, FR 1.0
1.0
Descriptive Properties Value Comments
B 0
Climatic Resistance Test CR 3
HG 3
K (10-6mm2/N) 1.77
Phosphate Resistance PR 4.3
T1013.0 (°C) 481
T107.6 (°C) 573
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