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Schott N-PK51 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:
Suitable for precision moldingInformation Provided by SCHOTT North America, Inc.
Physical Properties Metric English Comments
Density 3.86 g/cc
0.139 lb/in³
Mechanical Properties Metric English Comments
Knoop Microhardness 415
415
.1/20
Modulus of Elasticity 74.0 GPa
10700 ksi
Poissons Ratio 0.295
0.295
Shear Modulus 29.0 GPa
4210 ksi
calculated
Thermal Properties Metric English Comments
CTE, linear 12.4 µm/m-°C

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

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

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

@Temperature 68.0 - 572 °F
Specific Heat Capacity 0.620 J/g-°C
0.148 BTU/lb-°F
Thermal Conductivity 0.650 W/m-K
4.51 BTU-in/hr-ft²-°F
Transformation Temperature, Tg 487 °C
909 °F
Optical Properties Metric English Comments
Refractive Index 1.52855

@Wavelength 587.6 nm
 1.52855

@Wavelength 587.6 nm
 n<sub>d</sub>
1.53019

@Wavelength 546.1 nm
 1.53019

@Wavelength 546.1 nm
 n<sub>e</sub>
Transmission, Visible 98.9 %

@Thickness 10.0 mm,
Wavelength 380 nm
 98.9 %

@Thickness 0.394 in,
Wavelength 380 nm
99.4 %

@Thickness 10.0 mm,
Wavelength 405 nm
 99.4 %

@Thickness 0.394 in,
Wavelength 405 nm
99.5 %

@Thickness 10.0 mm,
Wavelength 460 nm
 99.5 %

@Thickness 0.394 in,
Wavelength 460 nm
99.7 %

@Thickness 10.0 mm,
Wavelength 700 nm
 99.7 %

@Thickness 0.394 in,
Wavelength 700 nm
99.8 %

@Thickness 10.0 mm,
Wavelength 580 nm
 99.8 %

@Thickness 0.394 in,
Wavelength 580 nm
IR Transmittance 91.9 %

@Thickness 10.0 mm,
Wavelength 2500 nm
 91.9 %

@Thickness 0.394 in,
Wavelength 2500 nm
99.4 %

@Thickness 10.0 mm,
Wavelength 1530 nm
 99.4 %

@Thickness 0.394 in,
Wavelength 1530 nm
UV Transmittance 0.10 %

@Thickness 10.0 mm,
Wavelength 270 nm
 0.10 %

@Thickness 0.394 in,
Wavelength 270 nm
20.9 %

@Thickness 10.0 mm,
Wavelength 300 nm
 20.9 %

@Thickness 0.394 in,
Wavelength 300 nm
81.5 %

@Thickness 10.0 mm,
Wavelength 334 nm
 81.5 %

@Thickness 0.394 in,
Wavelength 334 nm
98.2 %

@Thickness 10.0 mm,
Wavelength 370 nm
 98.2 %

@Thickness 0.394 in,
Wavelength 370 nm
Chemical Properties Metric English Comments
Acid Class, SR 52.3
52.3
Alkali Class, AR 3.3
3.3
Stain Resistance Class, FR 0.00
0.00
Descriptive Properties Value Comments
B 1
Climatic Resistance Test CR 1
HG 6
K (10-6mm2/N) 0.54
Phosphate Resistance PR 4.3
T1013.0 (°C) 488
T107.6 (°C) 568
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