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Rulon Bearings

Schott N-FK58 456909.365, Optical Glass
Categories: Ceramic; Glass; Optical
Material Notes:

Information provided by SCHOTT.
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Physical PropertiesMetricEnglishComments
Density 3.65 g/cc0.132 lb/in³
 
Chemical PropertiesMetricEnglishComments
Acid Class, SR 52.352.3
Alkali Class, AR 3.33.3
Stain Resistance Class, FR 1.01.0
 
Mechanical PropertiesMetricEnglishComments
Hardness, Knoop 372372HK (0.1/20)
Modulus of Elasticity 70.0 GPa10200 ksi
Poissons Ratio 0.300.30
Shear Modulus 26.9 GPa3900 ksiCalculated
 
Thermal PropertiesMetricEnglishComments
CTE, linear  13.7 µm/m-°C
@Temperature -30.0 - 70.0 °C		7.61 µin/in-°F
@Temperature -22.0 - 158 °F
 15.7 µm/m-°C
@Temperature 20.0 - 300 °C		8.72 µin/in-°F
@Temperature 68.0 - 572 °F
Specific Heat Capacity 0.710 J/g-°C0.170 BTU/lb-°F
Thermal Conductivity 0.760 W/m-K5.27 BTU-in/hr-ft²-°F
Transformation Temperature, Tg 445 °C833 °F
Softening Point 508 °C946 °Fviscosity of 107.6 cP
Annealing Point 448 °C838 °Fviscosity of 1013 cP
 
Optical PropertiesMetricEnglishComments
Refractive Index  1.441
@Wavelength 232.4 nm		1.441
@Wavelength 232.4 nm
 1.443
@Wavelength 1970.1 nm		1.443
@Wavelength 1970.1 nm
 1.446
@Wavelength 1529.6 nm		1.446
@Wavelength 1529.6 nm
 1.449
@Wavelength 1060 nm		1.449
@Wavelength 1060 nm
 1.45
@Wavelength 1014 nm		1.45
@Wavelength 1014 nm
 1.451
@Wavelength 852.1 nm		1.451
@Wavelength 852.1 nm
 1.453
@Wavelength 706.5 nm		1.453
@Wavelength 706.5 nm
 1.454
@Wavelength 656.3 nm		1.454
@Wavelength 656.3 nm
 1.454
@Wavelength 632.8 nm		1.454
@Wavelength 632.8 nm
 1.454
@Wavelength 643.8 nm		1.454
@Wavelength 643.8 nm
 1.455
@Wavelength 589.3 nm		1.455
@Wavelength 589.3 nm
 1.456
@Wavelength 587.6 nm		1.456
@Wavelength 587.6 nm
 1.459
@Wavelength 486.1 nm		1.459
@Wavelength 486.1 nm
 1.459
@Wavelength 480 nm		1.459
@Wavelength 480 nm
 1.462
@Wavelength 435.8 nm		1.462
@Wavelength 435.8 nm
 1.464
@Wavelength 404.7 nm		1.464
@Wavelength 404.7 nm
 1.468
@Wavelength 365 nm		1.468
@Wavelength 365 nm
 1.471
@Wavelength 334.1 nm		1.471
@Wavelength 334.1 nm
 1.475
@Wavelength 546.1 nm		1.475
@Wavelength 546.1 nm
Abbe Number 90.4790.47ve
 90.990.9vd
Optical Dispersion 0.0050170.005017nf - nc
 0.0050530.005053nf' - nc'
Transmission, Visible  99.1 %
@Thickness 25.0 mm,
Wavelength 420 nm		99.1 %
@Thickness 0.984 in,
Wavelength 420 nm
 99.1 %
@Thickness 25.0 mm,
Wavelength 436 nm		99.1 %
@Thickness 0.984 in,
Wavelength 436 nm
 99.2 %
@Thickness 25.0 mm,
Wavelength 460 nm		99.2 %
@Thickness 0.984 in,
Wavelength 460 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
 99.4 %
@Thickness 25.0 mm,
Wavelength 500 nm		99.4 %
@Thickness 0.984 in,
Wavelength 500 nm
 99.4 %
@Thickness 25.0 mm,
Wavelength 580 nm		99.4 %
@Thickness 0.984 in,
Wavelength 580 nm
 99.4 %
@Thickness 25.0 mm,
Wavelength 620 nm		99.4 %
@Thickness 0.984 in,
Wavelength 620 nm
 99.5 %
@Thickness 25.0 mm,
Wavelength 546 nm		99.5 %
@Thickness 0.984 in,
Wavelength 546 nm
 99.6 %
@Thickness 10.0 mm,
Wavelength 436 nm		99.6 %
@Thickness 0.394 in,
Wavelength 436 nm
 99.6 %
@Thickness 10.0 mm,
Wavelength 420 nm		99.6 %
@Thickness 0.394 in,
Wavelength 420 nm
 99.7 %
@Thickness 10.0 mm,
Wavelength 620 nm		99.7 %
@Thickness 0.394 in,
Wavelength 620 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 700 nm		99.7 %
@Thickness 0.394 in,
Wavelength 700 nm
 99.8 %
@Thickness 10.0 mm,
Wavelength 500 nm		99.8 %
@Thickness 0.394 in,
Wavelength 500 nm
 99.8 %
@Thickness 10.0 mm,
Wavelength 580 nm		99.8 %
@Thickness 0.394 in,
Wavelength 580 nm
 99.8 %
@Thickness 10.0 mm,
Wavelength 546 nm		99.8 %
@Thickness 0.394 in,
Wavelength 546 nm
 99.8 %
@Thickness 10.0 mm,
Wavelength 460 nm		99.8 %
@Thickness 0.394 in,
Wavelength 460 nm
IR Transmittance  99.3 %
@Thickness 25.0 mm,
Wavelength 2500 nm		99.3 %
@Thickness 0.984 in,
Wavelength 2500 nm
 99.5 %
@Thickness 25.0 mm,
Wavelength 1060 nm		99.5 %
@Thickness 0.984 in,
Wavelength 1060 nm
 99.6 %
@Thickness 25.0 mm,
Wavelength 2325 nm		99.6 %
@Thickness 0.984 in,
Wavelength 2325 nm
 99.7 %
@Thickness 10.0 mm,
Wavelength 2500 nm		99.7 %
@Thickness 0.394 in,
Wavelength 2500 nm
 99.8 %
@Thickness 10.0 mm,
Wavelength 2325 nm		99.8 %
@Thickness 0.394 in,
Wavelength 2325 nm
 99.8 %
@Thickness 10.0 mm,
Wavelength 1060 nm		99.8 %
@Thickness 0.394 in,
Wavelength 1060 nm
 99.8 %
@Thickness 25.0 mm,
Wavelength 1530 nm		99.8 %
@Thickness 0.984 in,
Wavelength 1530 nm
 99.8 %
@Thickness 25.0 mm,
Wavelength 1970 nm		99.8 %
@Thickness 0.984 in,
Wavelength 1970 nm
 99.9 %
@Thickness 10.0 mm,
Wavelength 1970 nm		99.9 %
@Thickness 0.394 in,
Wavelength 1970 nm
 99.9 %
@Thickness 10.0 mm,
Wavelength 1530 nm		99.9 %
@Thickness 0.394 in,
Wavelength 1530 nm
UV Transmittance  0.50 %
@Thickness 25.0 mm,
Wavelength 260 nm		0.50 %
@Thickness 0.984 in,
Wavelength 260 nm
 1.0 %
@Thickness 25.0 mm,
Wavelength 270 nm		1.0 %
@Thickness 0.984 in,
Wavelength 270 nm
 2.8 %
@Thickness 25.0 mm,
Wavelength 280 nm		2.8 %
@Thickness 0.984 in,
Wavelength 280 nm
 8.0 %
@Thickness 25.0 mm,
Wavelength 290 nm		8.0 %
@Thickness 0.984 in,
Wavelength 290 nm
 9.0 %
@Thickness 10.0 mm,
Wavelength 250 nm		9.0 %
@Thickness 0.394 in,
Wavelength 250 nm
 10.9 %
@Thickness 10.0 mm,
Wavelength 260 nm		10.9 %
@Thickness 0.394 in,
Wavelength 260 nm
 15.2 %
@Thickness 10.0 mm,
Wavelength 270 nm		15.2 %
@Thickness 0.394 in,
Wavelength 270 nm
 20 %
@Thickness 25.0 mm,
Wavelength 300 nm		20 %
@Thickness 0.984 in,
Wavelength 300 nm
 23.9 %
@Thickness 10.0 mm,
Wavelength 280 nm		23.9 %
@Thickness 0.394 in,
Wavelength 280 nm
 36.4 %
@Thickness 10.0 mm,
Wavelength 290 nm		36.4 %
@Thickness 0.394 in,
Wavelength 290 nm
 40 %
@Thickness 25.0 mm,
Wavelength 310 nm		40 %
@Thickness 0.984 in,
Wavelength 310 nm
 52.5 %
@Thickness 10.0 mm,
Wavelength 300 nm		52.5 %
@Thickness 0.394 in,
Wavelength 300 nm
 61 %
@Thickness 25.0 mm,
Wavelength 320 nm		61 %
@Thickness 0.984 in,
Wavelength 320 nm
 69.3 %
@Thickness 10.0 mm,
Wavelength 310 nm		69.3 %
@Thickness 0.394 in,
Wavelength 310 nm
 82.1 %
@Thickness 10.0 mm,
Wavelength 320 nm		82.1 %
@Thickness 0.394 in,
Wavelength 320 nm
 83 %
@Thickness 25.0 mm,
Wavelength 334 nm		83 %
@Thickness 0.984 in,
Wavelength 334 nm
 92.8 %
@Thickness 10.0 mm,
Wavelength 334 nm		92.8 %
@Thickness 0.394 in,
Wavelength 334 nm
 94 %
@Thickness 25.0 mm,
Wavelength 350 nm		94 %
@Thickness 0.984 in,
Wavelength 350 nm
 97.5 %
@Thickness 25.0 mm,
Wavelength 365 nm		97.5 %
@Thickness 0.984 in,
Wavelength 365 nm
 97.6 %
@Thickness 10.0 mm,
Wavelength 350 nm		97.6 %
@Thickness 0.394 in,
Wavelength 350 nm
 98 %
@Thickness 25.0 mm,
Wavelength 370 nm		98 %
@Thickness 0.984 in,
Wavelength 370 nm
 98.7 %
@Thickness 25.0 mm,
Wavelength 380 nm		98.7 %
@Thickness 0.984 in,
Wavelength 380 nm
 99 %
@Thickness 25.0 mm,
Wavelength 390 nm		99 %
@Thickness 0.984 in,
Wavelength 390 nm
 99 %
@Thickness 10.0 mm,
Wavelength 365 nm		99 %
@Thickness 0.394 in,
Wavelength 365 nm
 99.1 %
@Thickness 25.0 mm,
Wavelength 405 nm		99.1 %
@Thickness 0.984 in,
Wavelength 405 nm
 99.1 %
@Thickness 25.0 mm,
Wavelength 400 nm		99.1 %
@Thickness 0.984 in,
Wavelength 400 nm
 99.2 %
@Thickness 10.0 mm,
Wavelength 370 nm		99.2 %
@Thickness 0.394 in,
Wavelength 370 nm
 99.5 %
@Thickness 10.0 mm,
Wavelength 380 nm		99.5 %
@Thickness 0.394 in,
Wavelength 380 nm
 99.6 %
@Thickness 10.0 mm,
Wavelength 400 nm		99.6 %
@Thickness 0.394 in,
Wavelength 400 nm
 99.6 %
@Thickness 10.0 mm,
Wavelength 390 nm		99.6 %
@Thickness 0.394 in,
Wavelength 390 nm
 99.6 %
@Thickness 10.0 mm,
Wavelength 405 nm		99.6 %
@Thickness 0.394 in,
Wavelength 405 nm
 
Descriptive Properties
Acid resistance class4according to JOGIS
Climatic resistance1
Phosphate resistance4.3
Stress optical coefficient0.54[10-6mm2/N]
Water resistance class1according to JOGIS
Yield point/sag temperature475°C

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