Schott SFL6 805254.337, Optical Glass

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Schott SFL6 805254.337, Optical Glass
Categories:	Ceramic; Glass; Optical
Material Notes:	Information provided by SCHOTT.
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Physical Properties	Metric	English	Comments

Density	3.37 g/cc	0.122 lb/in³

Chemical Properties	Metric	English	Comments
Acid Class, SR	2.0	2.0
Alkali Class, AR	1.0	1.0
Stain Resistance Class, FR	0.00	0.00

Mechanical Properties	Metric	English	Comments
Hardness, Knoop	570	570	HK (0.1/20)
Modulus of Elasticity	93.0 GPa	13500 ksi
Poissons Ratio	0.26	0.26
Shear Modulus	36.9 GPa	5350 ksi	Calculated

Thermal Properties	Metric	English	Comments
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
Transformation Temperature, Tg	585 °C	1090 °F
Annealing Point	592 °C	1100 °F	viscosity of 10¹³ cP

Optical Properties	Metric	English	Comments
Refractive Index	1.748 @Wavelength 2325.4 nm	1.748 @Wavelength 2325.4 nm
	1.755 @Wavelength 1970.1 nm	1.755 @Wavelength 1970.1 nm
	1.763 @Wavelength 1529.6 nm	1.763 @Wavelength 1529.6 nm
	1.773 @Wavelength 1060 nm	1.773 @Wavelength 1060 nm
	1.774 @Wavelength 1014 nm	1.774 @Wavelength 1014 nm
	1.781 @Wavelength 852.1 nm	1.781 @Wavelength 852.1 nm
	1.791 @Wavelength 706.5 nm	1.791 @Wavelength 706.5 nm
	1.796 @Wavelength 656.3 nm	1.796 @Wavelength 656.3 nm
	1.797 @Wavelength 643.8 nm	1.797 @Wavelength 643.8 nm
	1.798 @Wavelength 632.8 nm	1.798 @Wavelength 632.8 nm
	1.804 @Wavelength 589.3 nm	1.804 @Wavelength 589.3 nm
	1.805 @Wavelength 587.6 nm	1.805 @Wavelength 587.6 nm
	1.812 @Wavelength 546.1 nm	1.812 @Wavelength 546.1 nm
	1.827 @Wavelength 486.1 nm	1.827 @Wavelength 486.1 nm
	1.829 @Wavelength 480 nm	1.829 @Wavelength 480 nm
	1.847 @Wavelength 435.8 nm	1.847 @Wavelength 435.8 nm
	1.865 @Wavelength 404.7 nm	1.865 @Wavelength 404.7 nm
Abbe Number	25.19	25.19	ve
	25.39	25.39	vd
Optical Dispersion	0.031708	0.031708	nf - nc
	0.03226	0.03226	nf' - nc'
Transmission, Visible	81 % @Thickness 25.0 mm, Wavelength 420 nm	81 % @Thickness 0.984 in, Wavelength 420 nm
	84 % @Thickness 25.0 mm, Wavelength 500 nm	84 % @Thickness 0.984 in, Wavelength 500 nm
	86 % @Thickness 25.0 mm, Wavelength 436 nm	86 % @Thickness 0.984 in, Wavelength 436 nm
	90 % @Thickness 25.0 mm, Wavelength 460 nm	90 % @Thickness 0.984 in, Wavelength 460 nm
	92 % @Thickness 10.0 mm, Wavelength 420 nm	92 % @Thickness 0.394 in, Wavelength 420 nm
	94 % @Thickness 10.0 mm, Wavelength 436 nm	94 % @Thickness 0.394 in, Wavelength 436 nm
	95.9 % @Thickness 10.0 mm, Wavelength 460 nm	95.9 % @Thickness 0.394 in, Wavelength 460 nm
	97 % @Thickness 25.0 mm, Wavelength 546 nm	97 % @Thickness 0.984 in, Wavelength 546 nm
	97.6 % @Thickness 10.0 mm, Wavelength 500 nm	97.6 % @Thickness 0.394 in, Wavelength 500 nm
	98 % @Thickness 25.0 mm, Wavelength 580 nm	98 % @Thickness 0.984 in, Wavelength 580 nm
	98.6 % @Thickness 25.0 mm, Wavelength 620 nm	98.6 % @Thickness 0.984 in, Wavelength 620 nm
	98.8 % @Thickness 10.0 mm, Wavelength 546 nm	98.8 % @Thickness 0.394 in, Wavelength 546 nm
	98.8 % @Thickness 25.0 mm, Wavelength 660 nm	98.8 % @Thickness 0.984 in, Wavelength 660 nm
	98.9 % @Thickness 25.0 mm, Wavelength 700 nm	98.9 % @Thickness 0.984 in, Wavelength 700 nm
	99.2 % @Thickness 10.0 mm, Wavelength 580 nm	99.2 % @Thickness 0.394 in, Wavelength 580 nm
	99.3 % @Thickness 10.0 mm, Wavelength 620 nm	99.3 % @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
	99.6 % @Thickness 10.0 mm, Wavelength 700 nm	99.6 % @Thickness 0.394 in, Wavelength 700 nm
IR Transmittance	84 % @Thickness 25.0 mm, Wavelength 2325 nm	84 % @Thickness 0.984 in, Wavelength 2325 nm
	93 % @Thickness 10.0 mm, Wavelength 2325 nm	93 % @Thickness 0.394 in, Wavelength 2325 nm
	95 % @Thickness 25.0 mm, Wavelength 1970 nm	95 % @Thickness 0.984 in, Wavelength 1970 nm
	98 % @Thickness 10.0 mm, Wavelength 1970 nm	98 % @Thickness 0.394 in, Wavelength 1970 nm
	98.8 % @Thickness 25.0 mm, Wavelength 1060 nm	98.8 % @Thickness 0.984 in, Wavelength 1060 nm
	99.5 % @Thickness 10.0 mm, Wavelength 1060 nm	99.5 % @Thickness 0.394 in, Wavelength 1060 nm
	99.5 % @Thickness 25.0 mm, Wavelength 1530 nm	99.5 % @Thickness 0.984 in, Wavelength 1530 nm
	99.8 % @Thickness 10.0 mm, Wavelength 1530 nm	99.8 % @Thickness 0.394 in, Wavelength 1530 nm
UV Transmittance	20 % @Thickness 25.0 mm, Wavelength 370 nm	20 % @Thickness 0.984 in, Wavelength 370 nm
	21 % @Thickness 10.0 mm, Wavelength 370 nm	21 % @Thickness 0.394 in, Wavelength 370 nm
	25 % @Thickness 25.0 mm, Wavelength 380 nm	25 % @Thickness 0.984 in, Wavelength 380 nm
	52 % @Thickness 25.0 mm, Wavelength 390 nm	52 % @Thickness 0.984 in, Wavelength 390 nm
	57 % @Thickness 10.0 mm, Wavelength 380 nm	57 % @Thickness 0.394 in, Wavelength 380 nm
	67 % @Thickness 25.0 mm, Wavelength 400 nm	67 % @Thickness 0.984 in, Wavelength 400 nm
	72 % @Thickness 25.0 mm, Wavelength 405 nm	72 % @Thickness 0.984 in, Wavelength 405 nm
	77 % @Thickness 10.0 mm, Wavelength 390 nm	77 % @Thickness 0.394 in, Wavelength 390 nm
	85 % @Thickness 10.0 mm, Wavelength 400 nm	85 % @Thickness 0.394 in, Wavelength 400 nm
	88 % @Thickness 10.0 mm, Wavelength 405 nm	88 % @Thickness 0.394 in, Wavelength 405 nm

Descriptive Properties
Climatic resistance	1
Phosphate resistance	1
Stress optical coefficient	2.79		[10^-6mm²/N]

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

CSGT9876 / 183129

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