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Schott N-LASF41 Glass

Category Ceramic , Glass
Manufacturer Schott North America
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
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Material Notes:
Information Provided by SCHOTT North America, Inc.
Physical Properties Metric English Comments
Density 4.85 g/cc
0.175 lb/in³
Mechanical Properties Metric English Comments
Knoop Microhardness 760
760
.1/20
Modulus of Elasticity 124 GPa
18000 ksi
Poissons Ratio 0.294
0.294
Shear Modulus 48.0 GPa
6960 ksi
calculated
Thermal Properties Metric English Comments
CTE, linear 6.20 µm/m-°C

@Temperature -30.0 - 70.0 °C
 3.44 µin/in-°F

@Temperature -22.0 - 158 °F
7.30 µm/m-°C

@Temperature 20.0 - 300 °C
 4.06 µin/in-°F

@Temperature 68.0 - 572 °F
Specific Heat Capacity 0.490 J/g-°C
0.117 BTU/lb-°F
Thermal Conductivity 0.790 W/m-K
5.48 BTU-in/hr-ft²-°F
Transformation Temperature, Tg 651 °C
1200 °F
Optical Properties Metric English Comments
Refractive Index 1.83501

@Wavelength 587.6 nm
 1.83501

@Wavelength 587.6 nm
 n<sub>d</sub>
1.83961

@Wavelength 546.1 nm
 1.83961

@Wavelength 546.1 nm
 n<sub>e</sub>
Transmission, Visible 89.1 %

@Thickness 10.0 mm,
Wavelength 380 nm
 89.1 %

@Thickness 0.394 in,
Wavelength 380 nm
95.4 %

@Thickness 10.0 mm,
Wavelength 405 nm
 95.4 %

@Thickness 0.394 in,
Wavelength 405 nm
98.5 %

@Thickness 10.0 mm,
Wavelength 460 nm
 98.5 %

@Thickness 0.394 in,
Wavelength 460 nm
99.8 %

@Thickness 10.0 mm,
Wavelength 580 nm
 99.8 %

@Thickness 0.394 in,
Wavelength 580 nm
99.8 %

@Thickness 10.0 mm,
Wavelength 700 nm
 99.8 %

@Thickness 0.394 in,
Wavelength 700 nm
IR Transmittance 48 %

@Thickness 10.0 mm,
Wavelength 2500 nm
 48 %

@Thickness 0.394 in,
Wavelength 2500 nm
99.3 %

@Thickness 10.0 mm,
Wavelength 1530 nm
 99.3 %

@Thickness 0.394 in,
Wavelength 1530 nm
UV Transmittance 4.0 %

@Thickness 10.0 mm,
Wavelength 320 nm
 4.0 %

@Thickness 0.394 in,
Wavelength 320 nm
29.2 %

@Thickness 10.0 mm,
Wavelength 334 nm
 29.2 %

@Thickness 0.394 in,
Wavelength 334 nm
59.2 %

@Thickness 10.0 mm,
Wavelength 350 nm
 59.2 %

@Thickness 0.394 in,
Wavelength 350 nm
83.1 %

@Thickness 10.0 mm,
Wavelength 370 nm
 83.1 %

@Thickness 0.394 in,
Wavelength 370 nm
Chemical Properties Metric English Comments
Acid Class, SR 4.0
4.0
Alkali Class, AR 1.0
1.0
Stain Resistance Class, FR 1.0
1.0
Descriptive Properties Value Comments
B 0
Climatic Resistance Test CR 1
HG 2
K (10-6mm2/N) 1.57
Phosphate Resistance PR 1
T1013.0 (°C) 658
T107.6 (°C) 739
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