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Schott FK5HTi 487705.245, Glass
Categories: Ceramic; Glass; Optical
Material Notes:

Information provided by SCHOTT.
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Physical PropertiesMetricEnglishComments
Density 2.45 g/cc0.0885 lb/in³
 
Chemical PropertiesMetricEnglishComments
Acid Class, SR 4.04.0
Alkali Class, AR 2.02.0
Stain Resistance Class, FR 1.01.0
 
Mechanical PropertiesMetricEnglishComments
Hardness, Knoop 520520HK (0.1/20)
Modulus of Elasticity 62.0 GPa8990 ksi
Poissons Ratio 0.2320.232
Shear Modulus 25.2 GPa3660 ksiCalculated
 
Thermal PropertiesMetricEnglishComments
CTE, linear  9.20 µm/m-°C
@Temperature -30.0 - 70.0 °C		5.11 µin/in-°F
@Temperature -22.0 - 158 °F
 10.0 µm/m-°C
@Temperature 20.0 - 300 °C		5.56 µin/in-°F
@Temperature 68.0 - 572 °F
Specific Heat Capacity 0.808 J/g-°C0.193 BTU/lb-°F
Thermal Conductivity 0.925 W/m-K6.42 BTU-in/hr-ft²-°F
Transformation Temperature, Tg 466 °C871 °F
Softening Point 672 °C1240 °Fviscosity of 107.6 cP
Annealing Point 496 °C925 °Fviscosity of 1013 cP
 
Optical PropertiesMetricEnglishComments
Refractive Index  1.461
@Wavelength 2325.4 nm		1.461
@Wavelength 2325.4 nm
 1.467
@Wavelength 1970.1 nm		1.467
@Wavelength 1970.1 nm
 1.473
@Wavelength 1529.6 nm		1.473
@Wavelength 1529.6 nm
 1.478
@Wavelength 1060 nm		1.478
@Wavelength 1060 nm
 1.481
@Wavelength 852.1 nm		1.481
@Wavelength 852.1 nm
 1.484
@Wavelength 706.5 nm		1.484
@Wavelength 706.5 nm
 1.485
@Wavelength 643.8 nm		1.485
@Wavelength 643.8 nm
 1.485
@Wavelength 656.3 nm		1.485
@Wavelength 656.3 nm
 1.486
@Wavelength 632.8 nm		1.486
@Wavelength 632.8 nm
 1.487
@Wavelength 587.6 nm		1.487
@Wavelength 587.6 nm
 1.487
@Wavelength 589.3 nm		1.487
@Wavelength 589.3 nm
 1.489
@Wavelength 546.1 nm		1.489
@Wavelength 546.1 nm
 1.49
@Wavelength 1014 nm		1.49
@Wavelength 1014 nm
 1.492
@Wavelength 480 nm		1.492
@Wavelength 480 nm
 1.492
@Wavelength 486.1 nm		1.492
@Wavelength 486.1 nm
 1.49591
@Wavelength 435.8 nm		1.49591
@Wavelength 435.8 nm
 1.498
@Wavelength 404.7 nm		1.498
@Wavelength 404.7 nm
 1.503
@Wavelength 365 nm		1.503
@Wavelength 365 nm
 1.509
@Wavelength 334.1 nm		1.509
@Wavelength 334.1 nm
 1.514
@Wavelength 312.6 nm		1.514
@Wavelength 312.6 nm
 1.518
@Wavelength 296.7 nm		1.518
@Wavelength 296.7 nm
 1.524
@Wavelength 280.4 nm		1.524
@Wavelength 280.4 nm
Abbe Number 70.2970.29ve
 70.4770.47vd
Optical Dispersion 0.0069180.006918nf - nc
 0.0069590.006959nf' - nc'
Transmission, Visible  99.4 %
@Thickness 25.0 mm,
Wavelength 620 nm		99.4 %
@Thickness 0.984 in,
Wavelength 620 nm
 99.4 %
@Thickness 25.0 mm,
Wavelength 500 nm		99.4 %
@Thickness 0.984 in,
Wavelength 500 nm
 99.5 %
@Thickness 25.0 mm,
Wavelength 660 nm		99.5 %
@Thickness 0.984 in,
Wavelength 660 nm
 99.5 %
@Thickness 25.0 mm,
Wavelength 580 nm		99.5 %
@Thickness 0.984 in,
Wavelength 580 nm
 99.5 %
@Thickness 25.0 mm,
Wavelength 546 nm		99.5 %
@Thickness 0.984 in,
Wavelength 546 nm
 99.5 %
@Thickness 25.0 mm,
Wavelength 460 nm		99.5 %
@Thickness 0.984 in,
Wavelength 460 nm
 99.6 %
@Thickness 25.0 mm,
Wavelength 436 nm		99.6 %
@Thickness 0.984 in,
Wavelength 436 nm
 99.7 %
@Thickness 25.0 mm,
Wavelength 420 nm		99.7 %
@Thickness 0.984 in,
Wavelength 420 nm
 99.7 %
@Thickness 25.0 mm,
Wavelength 700 nm		99.7 %
@Thickness 0.984 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 660 nm		99.8 %
@Thickness 0.394 in,
Wavelength 660 nm
 99.8 %
@Thickness 10.0 mm,
Wavelength 620 nm		99.8 %
@Thickness 0.394 in,
Wavelength 620 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 580 nm		99.8 %
@Thickness 0.394 in,
Wavelength 580 nm
 99.8 %
@Thickness 10.0 mm,
Wavelength 436 nm		99.8 %
@Thickness 0.394 in,
Wavelength 436 nm
 99.8 %
@Thickness 10.0 mm,
Wavelength 460 nm		99.8 %
@Thickness 0.394 in,
Wavelength 460 nm
 99.9 %
@Thickness 10.0 mm,
Wavelength 420 nm		99.9 %
@Thickness 0.394 in,
Wavelength 420 nm
 99.9 %
@Thickness 10.0 mm,
Wavelength 700 nm		99.9 %
@Thickness 0.394 in,
Wavelength 700 nm
IR Transmittance  38.5 %
@Thickness 25.0 mm,
Wavelength 2500 nm		38.5 %
@Thickness 0.984 in,
Wavelength 2500 nm
 68.3 %
@Thickness 10.0 mm,
Wavelength 2500 nm		68.3 %
@Thickness 0.394 in,
Wavelength 2500 nm
 92.8 %
@Thickness 25.0 mm,
Wavelength 2325 nm		92.8 %
@Thickness 0.984 in,
Wavelength 2325 nm
 93 %
@Thickness 10.0 mm,
Wavelength 2325 nm		93 %
@Thickness 0.394 in,
Wavelength 2325 nm
 93 %
@Thickness 25.0 mm,
Wavelength 1970 nm		93 %
@Thickness 0.984 in,
Wavelength 1970 nm
 96.5 %
@Thickness 25.0 mm,
Wavelength 1530 nm		96.5 %
@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
 98.6 %
@Thickness 10.0 mm,
Wavelength 1530 nm		98.6 %
@Thickness 0.394 in,
Wavelength 1530 nm
 99.8 %
@Thickness 25.0 mm,
Wavelength 1060 nm		99.8 %
@Thickness 0.984 in,
Wavelength 1060 nm
 99.9 %
@Thickness 10.0 mm,
Wavelength 1060 nm		99.9 %
@Thickness 0.394 in,
Wavelength 1060 nm
UV Transmittance  0.20 %
@Thickness 25.0 mm,
Wavelength 250 nm		0.20 %
@Thickness 0.984 in,
Wavelength 250 nm
 5.0 %
@Thickness 25.0 mm,
Wavelength 260 nm		5.0 %
@Thickness 0.984 in,
Wavelength 260 nm
 12 %
@Thickness 10.0 mm,
Wavelength 250 nm		12 %
@Thickness 0.394 in,
Wavelength 250 nm
 22 %
@Thickness 25.0 mm,
Wavelength 270 nm		22 %
@Thickness 0.984 in,
Wavelength 270 nm
 30.2 %
@Thickness 10.0 mm,
Wavelength 260 nm		30.2 %
@Thickness 0.394 in,
Wavelength 260 nm
 51 %
@Thickness 25.0 mm,
Wavelength 280 nm		51 %
@Thickness 0.984 in,
Wavelength 280 nm
 54.6 %
@Thickness 10.0 mm,
Wavelength 270 nm		54.6 %
@Thickness 0.394 in,
Wavelength 270 nm
 76 %
@Thickness 25.0 mm,
Wavelength 290 nm		76 %
@Thickness 0.984 in,
Wavelength 290 nm
 76.4 %
@Thickness 10.0 mm,
Wavelength 280 nm		76.4 %
@Thickness 0.394 in,
Wavelength 280 nm
 89.6 %
@Thickness 10.0 mm,
Wavelength 290 nm		89.6 %
@Thickness 0.394 in,
Wavelength 290 nm
 90 %
@Thickness 25.0 mm,
Wavelength 300 nm		90 %
@Thickness 0.984 in,
Wavelength 300 nm
 95.8 %
@Thickness 25.0 mm,
Wavelength 310 nm		95.8 %
@Thickness 0.984 in,
Wavelength 310 nm
 95.9 %
@Thickness 10.0 mm,
Wavelength 300 nm		95.9 %
@Thickness 0.394 in,
Wavelength 300 nm
 97.9 %
@Thickness 25.0 mm,
Wavelength 320 nm		97.9 %
@Thickness 0.984 in,
Wavelength 320 nm
 98.3 %
@Thickness 10.0 mm,
Wavelength 310 nm		98.3 %
@Thickness 0.394 in,
Wavelength 310 nm
 98.9 %
@Thickness 25.0 mm,
Wavelength 334 nm		98.9 %
@Thickness 0.984 in,
Wavelength 334 nm
 99.2 %
@Thickness 10.0 mm,
Wavelength 320 nm		99.2 %
@Thickness 0.394 in,
Wavelength 320 nm
 99.4 %
@Thickness 25.0 mm,
Wavelength 350 nm		99.4 %
@Thickness 0.984 in,
Wavelength 350 nm
 99.6 %
@Thickness 10.0 mm,
Wavelength 334 nm		99.6 %
@Thickness 0.394 in,
Wavelength 334 nm
 99.6 %
@Thickness 25.0 mm,
Wavelength 370 nm		99.6 %
@Thickness 0.984 in,
Wavelength 370 nm
 99.6 %
@Thickness 25.0 mm,
Wavelength 365 nm		99.6 %
@Thickness 0.984 in,
Wavelength 365 nm
 99.6 %
@Thickness 25.0 mm,
Wavelength 380 nm		99.6 %
@Thickness 0.984 in,
Wavelength 380 nm
 99.7 %
@Thickness 25.0 mm,
Wavelength 390 nm		99.7 %
@Thickness 0.984 in,
Wavelength 390 nm
 99.7 %
@Thickness 25.0 mm,
Wavelength 400 nm		99.7 %
@Thickness 0.984 in,
Wavelength 400 nm
 99.7 %
@Thickness 25.0 mm,
Wavelength 405 nm		99.7 %
@Thickness 0.984 in,
Wavelength 405 nm
 99.8 %
@Thickness 10.0 mm,
Wavelength 350 nm		99.8 %
@Thickness 0.394 in,
Wavelength 350 nm
 99.8 %
@Thickness 10.0 mm,
Wavelength 365 nm		99.8 %
@Thickness 0.394 in,
Wavelength 365 nm
 99.8 %
@Thickness 10.0 mm,
Wavelength 380 nm		99.8 %
@Thickness 0.394 in,
Wavelength 380 nm
 99.9 %
@Thickness 10.0 mm,
Wavelength 390 nm		99.9 %
@Thickness 0.394 in,
Wavelength 390 nm
 99.9 %
@Thickness 10.0 mm,
Wavelength 400 nm		99.9 %
@Thickness 0.394 in,
Wavelength 400 nm
 99.9 %
@Thickness 10.0 mm,
Wavelength 370 nm		99.9 %
@Thickness 0.394 in,
Wavelength 370 nm
 99.9 %
@Thickness 10.0 mm,
Wavelength 405 nm		99.9 %
@Thickness 0.394 in,
Wavelength 405 nm
 
Descriptive Properties
Climatic resistance2
Phosphate resistance2.3
Stress optical coefficient2.91[10-6mm2/N]

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