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Schott Glass 8347 Borosilicate 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:
Borosilicate glass 3.3 acc. To ISO 3585, chemically and thermally highly resistant, highly UV-transmitting The heavy metal content for the elements lead, cadmium, mercury, and hexavalent chromium is less than 100 ppmInformation provided by SCHOTT AG.
Physical Properties Metric English Comments
Density 2.23 g/cc

@Temperature 25.0 °C
0.0806 lb/in³

@Temperature 77.0 °F
Mechanical Properties Metric English Comments
Modulus of Elasticity 63.0 GPa
9140 ksi
Poissons Ratio 0.20
0.20
Thermal Properties Metric English Comments
CTE, linear 3.30 µm/m-°C

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

@Temperature 68.0 - 572 °F
ISO 7991
Thermal Conductivity 1.20 W/m-K

@Temperature 90.0 °C
8.33 BTU-in/hr-ft²-°F

@Temperature 194 °F
Transformation Temperature, Tg 525 °C
977 °F
ISO 7884-8
Softening Point 825 °C
1520 °F
Viscosity 10<sup>7.6</sup> dPa s; ISO 7884-3
Working Point 1260 °C
2300 °F
Viscosity 10<sup>4</sup> dPa s; ISO 7884-2
Annealing Point 560 °C
1040 °F
Viscosity 10<sup>13</sup> dPa s; ISO 7884-4
Optical Properties Metric English Comments
Refractive Index 1.473

@Wavelength 587.6 nm
1.473

@Wavelength 587.6 nm
UV Transmittance <= 70 %

@Thickness 1.00 mm,
Wavelength 254 nm
<= 70 %

@Thickness 0.0394 in,
Wavelength 254 nm
Electrical Properties Metric English Comments
Volume Resistivity 3.20e+6 ohm-cm

@Temperature 350 °C
3.20e+6 ohm-cm

@Temperature 662 °F
1.00e+8 ohm-cm

@Temperature 250 °C
1.00e+8 ohm-cm

@Temperature 482 °F
Dielectric Constant 4.6

@Frequency 1.00e+6 Hz,
Temperature 25.0 °C
4.6

@Frequency 1.00e+6 Hz,
Temperature 77.0 °F
Dielectric Loss Index 0.0037

@Frequency 1.00e+6 Hz,
Temperature 25.0 °C
0.0037

@Frequency 1.00e+6 Hz,
Temperature 77.0 °F
Chemical Properties Metric English Comments
Acid Class, SR 1
1
DIN 12116
Alkali Class, AR 2
2
ISO 695
Descriptive Properties Value Comments
Hydrolytic Resistance Class HGB 1
ISO 719
Stress-optical Coefficient K (10-6mm2N-1) 4
DIN 52314
tk100(°C) 250
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