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Schott N-LAF7 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 3.73 g/cc
0.135 lb/in³
Mechanical Properties Metric English Comments
Knoop Microhardness 530
530
.1/20
Modulus of Elasticity 96.0 GPa
13900 ksi
Poissons Ratio 0.271
0.271
Shear Modulus 38.0 GPa
5510 ksi
calculated
Thermal Properties Metric English Comments
CTE, linear 7.30 µm/m-°C

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

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

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

@Temperature 68.0 - 572 °F
Specific Heat Capacity 0.620 J/g-°C
0.148 BTU/lb-°F
Thermal Conductivity 0.830 W/m-K
5.76 BTU-in/hr-ft²-°F
Transformation Temperature, Tg 568 °C
1050 °F
Optical Properties Metric English Comments
Refractive Index 1.7495

@Wavelength 587.6 nm
 1.7495

@Wavelength 587.6 nm
 n<sub>d</sub>
1.75459

@Wavelength 546.1 nm
 1.75459

@Wavelength 546.1 nm
 n<sub>e</sub>
Transmission, Visible 51.5 %

@Thickness 10.0 mm,
Wavelength 380 nm
 51.5 %

@Thickness 0.394 in,
Wavelength 380 nm
78.2 %

@Thickness 10.0 mm,
Wavelength 405 nm
 78.2 %

@Thickness 0.394 in,
Wavelength 405 nm
93.7 %

@Thickness 10.0 mm,
Wavelength 460 nm
 93.7 %

@Thickness 0.394 in,
Wavelength 460 nm
99.2 %

@Thickness 10.0 mm,
Wavelength 580 nm
 99.2 %

@Thickness 0.394 in,
Wavelength 580 nm
99.7 %

@Thickness 10.0 mm,
Wavelength 700 nm
 99.7 %

@Thickness 0.394 in,
Wavelength 700 nm
IR Transmittance 67.9 %

@Thickness 10.0 mm,
Wavelength 2500 nm
 67.9 %

@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 17 %

@Thickness 10.0 mm,
Wavelength 365 nm
 17 %

@Thickness 0.394 in,
Wavelength 365 nm
30.2 %

@Thickness 10.0 mm,
Wavelength 370 nm
 30.2 %

@Thickness 0.394 in,
Wavelength 370 nm
Chemical Properties Metric English Comments
Acid Class, SR 51.3
51.3
Alkali Class, AR 1.2
1.2
Stain Resistance Class, FR 2.0
2.0
Descriptive Properties Value Comments
B 1
Climatic Resistance Test CR 1
HG 5
K (10-6mm2/N) 2.57
Phosphate Resistance PR 1.2
T1013.0 (°C) 563
T107.6 (°C) 669
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