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Schott N-BK10 Glass

Category Ceramic , Glass
Manufacturer Schott North America
Trade Name
Port Shanghai 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 2.39 g/cc
0.0863 lb/in³
Mechanical Properties Metric English Comments
Knoop Microhardness 560
560
.1/20
Modulus of Elasticity 71.0 GPa
10300 ksi
Poissons Ratio 0.203
0.203
Shear Modulus 30.0 GPa
4350 ksi
calculated
Thermal Properties Metric English Comments
CTE, linear 5.80 µm/m-°C

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

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

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

@Temperature 68.0 - 572 °F
Specific Heat Capacity 0.810 J/g-°C
0.194 BTU/lb-°F
Thermal Conductivity 1.32 W/m-K
9.16 BTU-in/hr-ft²-°F
Transformation Temperature, Tg 551 °C
1020 °F
Optical Properties Metric English Comments
Refractive Index 1.49782

@Wavelength 587.6 nm
 1.49782

@Wavelength 587.6 nm
 n<sub>d</sub>
1.4996

@Wavelength 546.1 nm
 1.4996

@Wavelength 546.1 nm
 n<sub>e</sub>
Transmission, Visible 99.4 %

@Thickness 10.0 mm,
Wavelength 380 nm
 99.4 %

@Thickness 0.394 in,
Wavelength 380 nm
99.6 %

@Thickness 10.0 mm,
Wavelength 405 nm
 99.6 %

@Thickness 0.394 in,
Wavelength 405 nm
99.6 %

@Thickness 10.0 mm,
Wavelength 460 nm
 99.6 %

@Thickness 0.394 in,
Wavelength 460 nm
99.7 %

@Thickness 10.0 mm,
Wavelength 580 nm
 99.7 %

@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 73.9 %

@Thickness 10.0 mm,
Wavelength 2500 nm
 73.9 %

@Thickness 0.394 in,
Wavelength 2500 nm
99.2 %

@Thickness 10.0 mm,
Wavelength 1530 nm
 99.2 %

@Thickness 0.394 in,
Wavelength 1530 nm
UV Transmittance 1.0 %

@Thickness 10.0 mm,
Wavelength 270 nm
 1.0 %

@Thickness 0.394 in,
Wavelength 270 nm
70.7 %

@Thickness 10.0 mm,
Wavelength 300 nm
 70.7 %

@Thickness 0.394 in,
Wavelength 300 nm
97.8 %

@Thickness 10.0 mm,
Wavelength 334 nm
 97.8 %

@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
Chemical Properties Metric English Comments
Acid Class, SR 1.0
1.0
Alkali Class, AR 1.0
1.0
Stain Resistance Class, FR 0.00
0.00
Descriptive Properties Value Comments
B 1
Climatic Resistance Test CR 1
HG 4
K (10-6mm2/N) 3.21
Phosphate Resistance PR 1
T1013.0 (°C) 0
T107.6 (°C) 753
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