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Rulon Bearings

Schott K5G20 523568.259, Optical Glass
Categories: Ceramic; Glass; Optical
Material Notes:

Information provided by SCHOTT.
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Physical PropertiesMetricEnglishComments
Density 2.59 g/cc0.0936 lb/in³
 
Chemical PropertiesMetricEnglishComments
Acid Class, SR 1.01.0
Alkali Class, AR 1.01.0
Stain Resistance Class, FR 0.000.00
 
Mechanical PropertiesMetricEnglishComments
Hardness, Knoop 510510HK (0.1/20)
Modulus of Elasticity 68.0 GPa9860 ksi
Poissons Ratio 0.2220.222
Shear Modulus 27.8 GPa4030 ksiCalculated
 
Thermal PropertiesMetricEnglishComments
CTE, linear  9.00 µm/m-°C
@Temperature -30.0 - 70.0 °C		5.00 µin/in-°F
@Temperature -22.0 - 158 °F
 10.3 µm/m-°C
@Temperature 20.0 - 300 °C		5.72 µin/in-°F
@Temperature 68.0 - 572 °F
Specific Heat Capacity 0.790 J/g-°C0.189 BTU/lb-°F
Thermal Conductivity 1.00 W/m-K6.94 BTU-in/hr-ft²-°F
Transformation Temperature, Tg 483 °C901 °F
Softening Point 679 °C1250 °Fviscosity of 107.6 cP
Annealing Point 501 °C934 °Fviscosity of 1013 cP
 
Optical PropertiesMetricEnglishComments
Refractive Index  1.497
@Wavelength 2325.4 nm		1.497
@Wavelength 2325.4 nm
 1.502
@Wavelength 1970 nm		1.502
@Wavelength 1970 nm
 1.507
@Wavelength 1529.6 nm		1.507
@Wavelength 1529.6 nm
 1.512
@Wavelength 1060 nm		1.512
@Wavelength 1060 nm
 1.513
@Wavelength 1014 nm		1.513
@Wavelength 1014 nm
 1.515
@Wavelength 852.1 nm		1.515
@Wavelength 852.1 nm
 1.519
@Wavelength 706.5 nm		1.519
@Wavelength 706.5 nm
 1.52
@Wavelength 656.3 nm		1.52
@Wavelength 656.3 nm
 1.521
@Wavelength 632.8 nm		1.521
@Wavelength 632.8 nm
 1.521
@Wavelength 643.8 nm		1.521
@Wavelength 643.8 nm
 1.523
@Wavelength 587.6 nm		1.523
@Wavelength 587.6 nm
 1.523
@Wavelength 589.3 nm		1.523
@Wavelength 589.3 nm
 1.525
@Wavelength 546.1 nm		1.525
@Wavelength 546.1 nm
 1.529
@Wavelength 486.1 nm		1.529
@Wavelength 486.1 nm
 1.53
@Wavelength 480 nm		1.53
@Wavelength 480 nm
 1.534
@Wavelength 435.8 nm		1.534
@Wavelength 435.8 nm
 1.546
@Wavelength 365 nm		1.546
@Wavelength 365 nm
 1.593
@Wavelength 404.7 nm		1.593
@Wavelength 404.7 nm
Abbe Number 56.4756.47ve
 56.7656.76vd
Optical Dispersion 0.0092220.009222nf - nc
 0.0093080.009308nf' - nc'
Transmission, Visible  12 %
@Thickness 25.0 mm,
Wavelength 680 nm		12 %
@Thickness 0.984 in,
Wavelength 680 nm
 39 %
@Thickness 25.0 mm,
Wavelength 690 nm		39 %
@Thickness 0.984 in,
Wavelength 690 nm
 44.2 %
@Thickness 10.0 mm,
Wavelength 680 nm		44.2 %
@Thickness 0.394 in,
Wavelength 680 nm
 68.6 %
@Thickness 10.0 mm,
Wavelength 690 nm		68.6 %
@Thickness 0.394 in,
Wavelength 690 nm
 82 %
@Thickness 25.0 mm,
Wavelength 420 nm		82 %
@Thickness 0.984 in,
Wavelength 420 nm
 89 %
@Thickness 25.0 mm,
Wavelength 436 nm		89 %
@Thickness 0.984 in,
Wavelength 436 nm
 92.4 %
@Thickness 10.0 mm,
Wavelength 420 nm		92.4 %
@Thickness 0.394 in,
Wavelength 420 nm
 93 %
@Thickness 25.0 mm,
Wavelength 460 nm		93 %
@Thickness 0.984 in,
Wavelength 460 nm
 95.4 %
@Thickness 10.0 mm,
Wavelength 436 nm		95.4 %
@Thickness 0.394 in,
Wavelength 436 nm
 96.1 %
@Thickness 25.0 mm,
Wavelength 500 nm		96.1 %
@Thickness 0.984 in,
Wavelength 500 nm
 97.1 %
@Thickness 10.0 mm,
Wavelength 460 nm		97.1 %
@Thickness 0.394 in,
Wavelength 460 nm
 97.6 %
@Thickness 25.0 mm,
Wavelength 546 nm		97.6 %
@Thickness 0.984 in,
Wavelength 546 nm
 98.2 %
@Thickness 25.0 mm,
Wavelength 580 nm		98.2 %
@Thickness 0.984 in,
Wavelength 580 nm
 98.4 %
@Thickness 10.0 mm,
Wavelength 500 nm		98.4 %
@Thickness 0.394 in,
Wavelength 500 nm
 98.5 %
@Thickness 25.0 mm,
Wavelength 620 nm		98.5 %
@Thickness 0.984 in,
Wavelength 620 nm
 98.7 %
@Thickness 25.0 mm,
Wavelength 660 nm		98.7 %
@Thickness 0.984 in,
Wavelength 660 nm
 99 %
@Thickness 10.0 mm,
Wavelength 546 nm		99 %
@Thickness 0.394 in,
Wavelength 546 nm
 99.2 %
@Thickness 25.0 mm,
Wavelength 700 nm		99.2 %
@Thickness 0.984 in,
Wavelength 700 nm
 99.3 %
@Thickness 10.0 mm,
Wavelength 580 nm		99.3 %
@Thickness 0.394 in,
Wavelength 580 nm
 99.4 %
@Thickness 10.0 mm,
Wavelength 620 nm		99.4 %
@Thickness 0.394 in,
Wavelength 620 nm
 99.5 %
@Thickness 10.0 mm,
Wavelength 660 nm		99.5 %
@Thickness 0.394 in,
Wavelength 660 nm
 99.7 %
@Thickness 10.0 mm,
Wavelength 700 nm		99.7 %
@Thickness 0.394 in,
Wavelength 700 nm
IR Transmittance  32 %
@Thickness 25.0 mm,
Wavelength 2500 nm		32 %
@Thickness 0.984 in,
Wavelength 2500 nm
 46 %
@Thickness 25.0 mm,
Wavelength 2325 nm		46 %
@Thickness 0.984 in,
Wavelength 2325 nm
 63.4 %
@Thickness 10.0 mm,
Wavelength 2500 nm		63.4 %
@Thickness 0.394 in,
Wavelength 2500 nm
 73.3 %
@Thickness 10.0 mm,
Wavelength 2325 nm		73.3 %
@Thickness 0.394 in,
Wavelength 2325 nm
 76 %
@Thickness 25.0 mm,
Wavelength 1970 nm		76 %
@Thickness 0.984 in,
Wavelength 1970 nm
 89.6 %
@Thickness 10.0 mm,
Wavelength 1970 nm		89.6 %
@Thickness 0.394 in,
Wavelength 1970 nm
 97.6 %
@Thickness 25.0 mm,
Wavelength 1530 nm		97.6 %
@Thickness 0.984 in,
Wavelength 1530 nm
 98.8 %
@Thickness 10.0 mm,
Wavelength 1060 nm		98.8 %
@Thickness 0.394 in,
Wavelength 1060 nm
 99 %
@Thickness 10.0 mm,
Wavelength 1530 nm		99 %
@Thickness 0.394 in,
Wavelength 1530 nm
 99.5 %
@Thickness 25.0 mm,
Wavelength 1060 nm		99.5 %
@Thickness 0.984 in,
Wavelength 1060 nm
UV Transmittance  2.9 %
@Thickness 10.0 mm,
Wavelength 370 nm		2.9 %
@Thickness 0.394 in,
Wavelength 370 nm
 13 %
@Thickness 10.0 mm,
Wavelength 365 nm		13 %
@Thickness 0.394 in,
Wavelength 365 nm
 61 %
@Thickness 25.0 mm,
Wavelength 400 nm		61 %
@Thickness 0.984 in,
Wavelength 400 nm
 68 %
@Thickness 25.0 mm,
Wavelength 405 nm		68 %
@Thickness 0.984 in,
Wavelength 405 nm
 82.1 %
@Thickness 10.0 mm,
Wavelength 400 nm		82.1 %
@Thickness 0.394 in,
Wavelength 400 nm
 85.7 %
@Thickness 10.0 mm,
Wavelength 405 nm		85.7 %
@Thickness 0.394 in,
Wavelength 405 nm

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