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Rulon Bearings

Schott FK3 464658.227, Optical Glass
Categories: Ceramic; Glass; Optical
Material Notes:

Information provided by SCHOTT.
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Physical PropertiesMetricEnglishComments
Density 2.27 g/cc0.0820 lb/in³
 
Chemical PropertiesMetricEnglishComments
Acid Class, SR 52.452.4
Alkali Class, AR 2.02.0
Stain Resistance Class, FR 3.03.0
 
Mechanical PropertiesMetricEnglishComments
Hardness, Knoop 380380HK (0.1/20)
Modulus of Elasticity 46.0 GPa6670 ksi
Poissons Ratio 0.2430.243
Shear Modulus 18.5 GPa2680 ksiCalculated
 
Thermal PropertiesMetricEnglishComments
CTE, linear  8.20 µm/m-°C
@Temperature -30.0 - 70.0 °C		4.56 µin/in-°F
@Temperature -22.0 - 158 °F
 9.40 µm/m-°C
@Temperature 20.0 - 300 °C		5.22 µin/in-°F
@Temperature 68.0 - 572 °F
Specific Heat Capacity 0.840 J/g-°C0.201 BTU/lb-°F
Thermal Conductivity 0.900 W/m-K6.25 BTU-in/hr-ft²-°F
Transformation Temperature, Tg 362 °C684 °F
Softening Point 622 °C1150 °Fviscosity of 107.6 cP
Annealing Point 369 °C696 °Fviscosity of 1013 cP
 
Optical PropertiesMetricEnglishComments
Refractive Index  1.439
@Wavelength 2325.4 nm		1.439
@Wavelength 2325.4 nm
 1.444
@Wavelength 1970.1 nm		1.444
@Wavelength 1970.1 nm
 1.45
@Wavelength 1529.6 nm		1.45
@Wavelength 1529.6 nm
 1.455
@Wavelength 1060 nm		1.455
@Wavelength 1060 nm
 1.456
@Wavelength 1014 nm		1.456
@Wavelength 1014 nm
 1.458
@Wavelength 852.1 nm		1.458
@Wavelength 852.1 nm
 1.461
@Wavelength 706.5 nm		1.461
@Wavelength 706.5 nm
 1.462
@Wavelength 656.3 nm		1.462
@Wavelength 656.3 nm
 1.463
@Wavelength 632.8 nm		1.463
@Wavelength 632.8 nm
 1.463
@Wavelength 643.8 nm		1.463
@Wavelength 643.8 nm
 1.464
@Wavelength 587.6 nm		1.464
@Wavelength 587.6 nm
 1.464
@Wavelength 589.3 nm		1.464
@Wavelength 589.3 nm
 1.466
@Wavelength 546.1 nm		1.466
@Wavelength 546.1 nm
 1.469
@Wavelength 486.1 nm		1.469
@Wavelength 486.1 nm
 1.469
@Wavelength 480 nm		1.469
@Wavelength 480 nm
 1.47
@Wavelength 365 nm		1.47
@Wavelength 365 nm
 1.473
@Wavelength 435.8 nm		1.473
@Wavelength 435.8 nm
 1.476
@Wavelength 404.7 nm		1.476
@Wavelength 404.7 nm
 1.487
@Wavelength 334.1 nm		1.487
@Wavelength 334.1 nm
 1.492
@Wavelength 312.6 nm		1.492
@Wavelength 312.6 nm
Abbe Number 65.5765.57ve
 65.7765.77vd
Optical Dispersion 0.0070630.007063nf - nc
 0.007110.00711nf' - nc'
Transmission, Visible  98.7 %
@Thickness 25.0 mm,
Wavelength 420 nm		98.7 %
@Thickness 0.984 in,
Wavelength 420 nm
 98.9 %
@Thickness 25.0 mm,
Wavelength 436 nm		98.9 %
@Thickness 0.984 in,
Wavelength 436 nm
 99 %
@Thickness 25.0 mm,
Wavelength 460 nm		99 %
@Thickness 0.984 in,
Wavelength 460 nm
 99.3 %
@Thickness 25.0 mm,
Wavelength 620 nm		99.3 %
@Thickness 0.984 in,
Wavelength 620 nm
 99.3 %
@Thickness 25.0 mm,
Wavelength 660 nm		99.3 %
@Thickness 0.984 in,
Wavelength 660 nm
 99.3 %
@Thickness 25.0 mm,
Wavelength 700 nm		99.3 %
@Thickness 0.984 in,
Wavelength 700 nm
 99.3 %
@Thickness 25.0 mm,
Wavelength 500 nm		99.3 %
@Thickness 0.984 in,
Wavelength 500 nm
 99.3 %
@Thickness 25.0 mm,
Wavelength 580 nm		99.3 %
@Thickness 0.984 in,
Wavelength 580 nm
 99.3 %
@Thickness 25.0 mm,
Wavelength 546 nm		99.3 %
@Thickness 0.984 in,
Wavelength 546 nm
 99.5 %
@Thickness 10.0 mm,
Wavelength 420 nm		99.5 %
@Thickness 0.394 in,
Wavelength 420 nm
 99.6 %
@Thickness 10.0 mm,
Wavelength 460 nm		99.6 %
@Thickness 0.394 in,
Wavelength 460 nm
 99.6 %
@Thickness 10.0 mm,
Wavelength 436 nm		99.6 %
@Thickness 0.394 in,
Wavelength 436 nm
 99.7 %
@Thickness 10.0 mm,
Wavelength 546 nm		99.7 %
@Thickness 0.394 in,
Wavelength 546 nm
 99.7 %
@Thickness 10.0 mm,
Wavelength 580 nm		99.7 %
@Thickness 0.394 in,
Wavelength 580 nm
 99.7 %
@Thickness 10.0 mm,
Wavelength 500 nm		99.7 %
@Thickness 0.394 in,
Wavelength 500 nm
 99.7 %
@Thickness 10.0 mm,
Wavelength 700 nm		99.7 %
@Thickness 0.394 in,
Wavelength 700 nm
 99.7 %
@Thickness 10.0 mm,
Wavelength 660 nm		99.7 %
@Thickness 0.394 in,
Wavelength 660 nm
 99.7 %
@Thickness 10.0 mm,
Wavelength 620 nm		99.7 %
@Thickness 0.394 in,
Wavelength 620 nm
IR Transmittance  34 %
@Thickness 25.0 mm,
Wavelength 2500 nm		34 %
@Thickness 0.984 in,
Wavelength 2500 nm
 59 %
@Thickness 25.0 mm,
Wavelength 2325 nm		59 %
@Thickness 0.984 in,
Wavelength 2325 nm
 65 %
@Thickness 10.0 mm,
Wavelength 2500 nm		65 %
@Thickness 0.394 in,
Wavelength 2500 nm
 81 %
@Thickness 10.0 mm,
Wavelength 2325 nm		81 %
@Thickness 0.394 in,
Wavelength 2325 nm
 93 %
@Thickness 25.0 mm,
Wavelength 1970 nm		93 %
@Thickness 0.984 in,
Wavelength 1970 nm
 97 %
@Thickness 25.0 mm,
Wavelength 1530 nm		97 %
@Thickness 0.984 in,
Wavelength 1530 nm
 97.1 %
@Thickness 10.0 mm,
Wavelength 1970 nm		97.1 %
@Thickness 0.394 in,
Wavelength 1970 nm
 98.8 %
@Thickness 10.0 mm,
Wavelength 1530 nm		98.8 %
@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
 99.8 %
@Thickness 10.0 mm,
Wavelength 1060 nm		99.8 %
@Thickness 0.394 in,
Wavelength 1060 nm
UV Transmittance  5.0 %
@Thickness 25.0 mm,
Wavelength 300 nm		5.0 %
@Thickness 0.984 in,
Wavelength 300 nm
 19 %
@Thickness 25.0 mm,
Wavelength 310 nm		19 %
@Thickness 0.984 in,
Wavelength 310 nm
 30 %
@Thickness 10.0 mm,
Wavelength 300 nm		30 %
@Thickness 0.394 in,
Wavelength 300 nm
 41 %
@Thickness 25.0 mm,
Wavelength 320 nm		41 %
@Thickness 0.984 in,
Wavelength 320 nm
 51 %
@Thickness 10.0 mm,
Wavelength 310 nm		51 %
@Thickness 0.394 in,
Wavelength 310 nm
 70 %
@Thickness 10.0 mm,
Wavelength 320 nm		70 %
@Thickness 0.394 in,
Wavelength 320 nm
 74 %
@Thickness 25.0 mm,
Wavelength 334 nm		74 %
@Thickness 0.984 in,
Wavelength 334 nm
 89 %
@Thickness 10.0 mm,
Wavelength 334 nm		89 %
@Thickness 0.394 in,
Wavelength 334 nm
 89 %
@Thickness 25.0 mm,
Wavelength 350 nm		89 %
@Thickness 0.984 in,
Wavelength 350 nm
 95.4 %
@Thickness 10.0 mm,
Wavelength 350 nm		95.4 %
@Thickness 0.394 in,
Wavelength 350 nm
 96.4 %
@Thickness 25.0 mm,
Wavelength 365 nm		96.4 %
@Thickness 0.984 in,
Wavelength 365 nm
 97.1 %
@Thickness 25.0 mm,
Wavelength 370 nm		97.1 %
@Thickness 0.984 in,
Wavelength 370 nm
 98 %
@Thickness 25.0 mm,
Wavelength 380 nm		98 %
@Thickness 0.984 in,
Wavelength 380 nm
 98.4 %
@Thickness 25.0 mm,
Wavelength 390 nm		98.4 %
@Thickness 0.984 in,
Wavelength 390 nm
 98.5 %
@Thickness 10.0 mm,
Wavelength 365 nm		98.5 %
@Thickness 0.394 in,
Wavelength 365 nm
 98.5 %
@Thickness 25.0 mm,
Wavelength 400 nm		98.5 %
@Thickness 0.984 in,
Wavelength 400 nm
 98.6 %
@Thickness 25.0 mm,
Wavelength 405 nm		98.6 %
@Thickness 0.984 in,
Wavelength 405 nm
 98.8 %
@Thickness 10.0 mm,
Wavelength 370 nm		98.8 %
@Thickness 0.394 in,
Wavelength 370 nm
 99.2 %
@Thickness 10.0 mm,
Wavelength 380 nm		99.2 %
@Thickness 0.394 in,
Wavelength 380 nm
 99.4 %
@Thickness 10.0 mm,
Wavelength 390 nm		99.4 %
@Thickness 0.394 in,
Wavelength 390 nm
 99.4 %
@Thickness 10.0 mm,
Wavelength 400 nm		99.4 %
@Thickness 0.394 in,
Wavelength 400 nm
 99.4 %
@Thickness 10.0 mm,
Wavelength 405 nm		99.4 %
@Thickness 0.394 in,
Wavelength 405 nm
 
Descriptive Properties
Climatic resistance2
Phosphate resistance1
Stress optical coefficient3.71[10-6mm2/N]

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