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Ensinger PEI

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Schott P-BK7 516641.243, Optical Glass
Categories: Ceramic; Glass; Optical
Material Notes:

Information provided by SCHOTT.
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesOriginal ValueComments
Density 2.43 g/cc
 
Chemical PropertiesOriginal ValueComments
Acid Class, SR 1.0
Alkali Class, AR 2.3
Stain Resistance Class, FR 0.00
 
Mechanical PropertiesOriginal ValueComments
Hardness, Knoop 627HK (0.1/20)
Modulus of Elasticity 85.0 GPa
Poissons Ratio 0.202
Shear Modulus 35.4 GPaCalculated
 
Thermal PropertiesOriginal ValueComments
CTE, linear 6.00 µm/m-°C
@Temperature -30.0 - 70.0 °C
 7.30 µm/m-°C
@Temperature 20.0 - 300 °C
Specific Heat Capacity 0.870 J/g-°C
Thermal Conductivity 1.13 W/m-K
Transformation Temperature, Tg 498 °C
Softening Point 657 °Cviscosity of 107.6 cP
Annealing Point 498 °Cviscosity of 1013 cP
 
Optical PropertiesOriginal ValueComments
Refractive Index 1.488
@Wavelength 2323.4 nm
 1.494
@Wavelength 1970.1 nm
 1.50
@Wavelength 1529.6 nm
 1.506
@Wavelength 1014 nm
 1.506
@Wavelength 1060 nm
 1.509
@Wavelength 852.1 nm
 1.512
@Wavelength 706.5 nm
 1.513
@Wavelength 656.3 nm
 1.514
@Wavelength 632.8 nm
 1.514
@Wavelength 643.8 nm
 1.516
@Wavelength 587.6 nm
 1.516
@Wavelength 589.3 nm
 1.518
@Wavelength 546.1 nm
 1.521
@Wavelength 486.1 nm
 1.522
@Wavelength 480 nm
 1.526
@Wavelength 435.8 nm
 1.529
@Wavelength 404.7 nm
 1.535
@Wavelength 365 nm
 1.542
@Wavelength 334.1 nm
Abbe Number 63.87ve
 64.06vd
Optical Dispersion 0.008061nf - nc
 0.008115nf' - nc'
Transmission, Visible 99.4 %
@Thickness 25.0 mm,
Wavelength 420 nm
 99.4 %
@Thickness 25.0 mm,
Wavelength 436 nm
 99.5 %
@Thickness 25.0 mm,
Wavelength 460 nm
 99.6 %
@Thickness 25.0 mm,
Wavelength 500 nm
 99.7 %
@Thickness 25.0 mm,
Wavelength 546 nm
 99.7 %
@Thickness 25.0 mm,
Wavelength 660 nm
 99.7 %
@Thickness 25.0 mm,
Wavelength 700 nm
 99.7 %
@Thickness 25.0 mm,
Wavelength 580 nm
 99.7 %
@Thickness 25.0 mm,
Wavelength 620 nm
 99.7 %
@Thickness 10.0 mm,
Wavelength 420 nm
 99.8 %
@Thickness 10.0 mm,
Wavelength 436 nm
 99.8 %
@Thickness 10.0 mm,
Wavelength 460 nm
 99.8 %
@Thickness 10.0 mm,
Wavelength 500 nm
 99.9 %
@Thickness 10.0 mm,
Wavelength 546 nm
 99.9 %
@Thickness 10.0 mm,
Wavelength 700 nm
 99.9 %
@Thickness 10.0 mm,
Wavelength 660 nm
 99.9 %
@Thickness 10.0 mm,
Wavelength 580 nm
 99.9 %
@Thickness 10.0 mm,
Wavelength 620 nm
IR Transmittance 46 %
@Thickness 25.0 mm,
Wavelength 2500 nm
 70 %
@Thickness 25.0 mm,
Wavelength 2325 nm
 73.3 %
@Thickness 10.0 mm,
Wavelength 2500 nm
 86.7 %
@Thickness 10.0 mm,
Wavelength 2325 nm
 92 %
@Thickness 25.0 mm,
Wavelength 1970 nm
 96.7 %
@Thickness 10.0 mm,
Wavelength 1970 nm
 97.9 %
@Thickness 25.0 mm,
Wavelength 1530 nm
 99.2 %
@Thickness 10.0 mm,
Wavelength 1530 nm
 99.9 %
@Thickness 10.0 mm,
Wavelength 1060 nm
 99.9 %
@Thickness 25.0 mm,
Wavelength 1060 nm
UV Transmittance 2.0 %
@Thickness 25.0 mm,
Wavelength 310 nm
 4.0 %
@Thickness 10.0 mm,
Wavelength 300 nm
 18 %
@Thickness 10.0 mm,
Wavelength 310 nm
 24 %
@Thickness 25.0 mm,
Wavelength 320 nm
 56.5 %
@Thickness 10.0 mm,
Wavelength 320 nm
 73 %
@Thickness 25.0 mm,
Wavelength 334 nm
 88.2 %
@Thickness 10.0 mm,
Wavelength 334 nm
 93 %
@Thickness 25.0 mm,
Wavelength 350 nm
 97.1 %
@Thickness 10.0 mm,
Wavelength 350 nm
 97.3 %
@Thickness 25.0 mm,
Wavelength 365 nm
 97.9 %
@Thickness 25.0 mm,
Wavelength 370 nm
 98.6 %
@Thickness 25.0 mm,
Wavelength 380 nm
 98.9 %
@Thickness 10.0 mm,
Wavelength 365 nm
 99 %
@Thickness 25.0 mm,
Wavelength 390 nm
 99.2 %
@Thickness 25.0 mm,
Wavelength 400 nm
 99.2 %
@Thickness 10.0 mm,
Wavelength 370 nm
 99.3 %
@Thickness 25.0 mm,
Wavelength 405 nm
 99.4 %
@Thickness 10.0 mm,
Wavelength 380 nm
 99.6 %
@Thickness 10.0 mm,
Wavelength 390 nm
 99.7 %
@Thickness 10.0 mm,
Wavelength 400 nm
 99.7 %
@Thickness 10.0 mm,
Wavelength 405 nm
 
Descriptive Properties
Acid resistance class1according to JOGIS
Climatic resistance1
Grindability66according to JOGIS
Phosphate resistance2.3
Stress optical coefficient2.77[10-6mm2/N]
Water resistance class4according to JOGIS
Yield point/sag temperature546°C

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