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Schott N-LAK21 Glass

Category Ceramic , Glass
Manufacturer Schott North America
Trade Name
Port Ningbo port,China
Trade Terms EXW, FOB, CFR, CIF
Payment Terms L/C, T/T, PayPal
Download PDF Schott N-LAK21 Glass.pdf
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Material Notes:
Information Provided by SCHOTT North America, Inc.
Physical Properties Metric English Comments
Density 3.74 g/cc
0.135 lb/in³
Mechanical Properties Metric English Comments
Knoop Microhardness 600
600
.1/20
Modulus of Elasticity 91.0 GPa
13200 ksi
Poissons Ratio 0.272
0.272
Shear Modulus 36.0 GPa
5220 ksi
calculated
Thermal Properties Metric English Comments
CTE, linear 6.80 µm/m-°C
<br>@Temperature -30.0 - 70.0 °C
 3.78 µin/in-°F
<br>@Temperature -22.0 - 158 °F
8.10 µm/m-°C
<br>@Temperature 20.0 - 300 °C
 4.50 µin/in-°F
<br>@Temperature 68.0 - 572 °F
Specific Heat Capacity 0.590 J/g-°C
0.141 BTU/lb-°F
Thermal Conductivity 0.880 W/m-K
6.11 BTU-in/hr-ft²-°F
Transformation Temperature, Tg 639 °C
1180 °F
Optical Properties Metric English Comments
Refractive Index 1.64049
<br>@Wavelength 587.6 nm
 1.64049
<br>@Wavelength 587.6 nm
 n&lt;sub&gt;d&lt;/sub&gt;
1.64304
<br>@Wavelength 546.1 nm
 1.64304
<br>@Wavelength 546.1 nm
 n&lt;sub&gt;e&lt;/sub&gt;
Transmission, Visible 95.9 %
<br>@Thickness 10.0 mm,<br> Wavelength 380 nm
 95.9 %
<br>@Thickness 0.394 in,<br> Wavelength 380 nm
98.2 %
<br>@Thickness 10.0 mm,<br> Wavelength 405 nm
 98.2 %
<br>@Thickness 0.394 in,<br> Wavelength 405 nm
99 %
<br>@Thickness 10.0 mm,<br> Wavelength 460 nm
 99 %
<br>@Thickness 0.394 in,<br> Wavelength 460 nm
99.7 %
<br>@Thickness 10.0 mm,<br> Wavelength 580 nm
 99.7 %
<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 53.6 %
<br>@Thickness 10.0 mm,<br> Wavelength 2500 nm
 53.6 %
<br>@Thickness 0.394 in,<br> Wavelength 2500 nm
98.8 %
<br>@Thickness 10.0 mm,<br> Wavelength 1530 nm
 98.8 %
<br>@Thickness 0.394 in,<br> Wavelength 1530 nm
UV Transmittance 6.0 %
<br>@Thickness 10.0 mm,<br> Wavelength 310 nm
 6.0 %
<br>@Thickness 0.394 in,<br> Wavelength 310 nm
56.5 %
<br>@Thickness 10.0 mm,<br> Wavelength 334 nm
 56.5 %
<br>@Thickness 0.394 in,<br> Wavelength 334 nm
92.8 %
<br>@Thickness 10.0 mm,<br> Wavelength 370 nm
 92.8 %
<br>@Thickness 0.394 in,<br> Wavelength 370 nm
Chemical Properties Metric English Comments
Acid Class, SR 53.2
53.2
Alkali Class, AR 4.3
4.3
Stain Resistance Class, FR 2.0
2.0
Descriptive Properties Value Comments
B 0
Climatic Resistance Test CR 4
HG 5
K (10-6mm2/N) 1.74
Phosphate Resistance PR 4.3
T1013.0 (°C) 627
T107.6 (°C) 716
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