Schott LF5G19 597399.330, Optical Glass

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Schott LF5G19 597399.330, Optical Glass
Categories:	Ceramic; Glass; Optical
Material Notes:	Information provided by SCHOTT.
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Physical Properties	Metric	English	Comments

Density	3.30 g/cc	0.119 lb/in³

Chemical Properties	Metric	English	Comments
Acid Class, SR	3.4	3.4
Alkali Class, AR	2.2	2.2
Stain Resistance Class, FR	2.0	2.0

Mechanical Properties	Metric	English	Comments
Hardness, Knoop	410	410	HK (0.1/20)
Modulus of Elasticity	56.0 GPa	8120 ksi
Poissons Ratio	0.242	0.242
Shear Modulus	22.5 GPa	3260 ksi	Calculated

Thermal Properties	Metric	English	Comments
CTE, linear	10.7 µm/m-°C @Temperature -30.0 - 70.0 °C	5.94 µin/in-°F @Temperature -22.0 - 158 °F
	11.4 µm/m-°C @Temperature 20.0 - 300 °C	6.33 µin/in-°F @Temperature 68.0 - 572 °F
Specific Heat Capacity	0.580 J/g-°C	0.139 BTU/lb-°F
Thermal Conductivity	0.750 W/m-K	5.20 BTU-in/hr-ft²-°F
Transformation Temperature, Tg	474 °C	885 °F
Softening Point	606 °C	1120 °F	viscosity of 10^7.6 cP
Annealing Point	462 °C	864 °F	viscosity of 10¹³ cP

Optical Properties	Metric	English	Comments
Refractive Index	1.564 @Wavelength 2325.4 nm	1.564 @Wavelength 2325.4 nm
	1.568 @Wavelength 1970.1 nm	1.568 @Wavelength 1970.1 nm
	1.574 @Wavelength 1529.6 nm	1.574 @Wavelength 1529.6 nm
	1.58 @Wavelength 1060 nm	1.58 @Wavelength 1060 nm
	1.581 @Wavelength 1014 nm	1.581 @Wavelength 1014 nm
	1.584 @Wavelength 852.1 nm	1.584 @Wavelength 852.1 nm
	1.589 @Wavelength 706.5 nm	1.589 @Wavelength 706.5 nm
	1.592 @Wavelength 656.3 nm	1.592 @Wavelength 656.3 nm
	1.592 @Wavelength 613.8 nm	1.592 @Wavelength 613.8 nm
	1.59349 @Wavelength 632.8 nm	1.59349 @Wavelength 632.8 nm
	1.596 @Wavelength 5289.3 nm	1.596 @Wavelength 5289.3 nm
	1.596 @Wavelength 587.6 nm	1.596 @Wavelength 587.6 nm
	1.60 @Wavelength 546.1 nm	1.60 @Wavelength 546.1 nm
	1.607 @Wavelength 486.1 nm	1.607 @Wavelength 486.1 nm
	1.60799 @Wavelength 480 nm	1.60799 @Wavelength 480 nm
	1.615 @Wavelength 435.8 nm	1.615 @Wavelength 435.8 nm
	1.623 @Wavelength 404.7 nm	1.623 @Wavelength 404.7 nm
Abbe Number	39.6	39.6	ve
	39.89	39.89	vd
Optical Dispersion	0.014954	0.014954	nf - nc
	0.015153	0.015153	nf' - nc'
Transmission, Visible	35 % @Thickness 25.0 mm, Wavelength 420 nm	35 % @Thickness 0.984 in, Wavelength 420 nm
	61.2 % @Thickness 25.0 mm, Wavelength 436 nm	61.2 % @Thickness 0.984 in, Wavelength 436 nm
	65.7 % @Thickness 10.0 mm, Wavelength 420 nm	65.7 % @Thickness 0.394 in, Wavelength 420 nm
	82.2 % @Thickness 10.0 mm, Wavelength 436 nm	82.2 % @Thickness 0.394 in, Wavelength 436 nm
	83.2 % @Thickness 25.0 mm, Wavelength 460 nm	83.2 % @Thickness 0.984 in, Wavelength 460 nm
	92.9 % @Thickness 10.0 mm, Wavelength 460 nm	92.9 % @Thickness 0.394 in, Wavelength 460 nm
	93.4 % @Thickness 25.0 mm, Wavelength 500 nm	93.4 % @Thickness 0.984 in, Wavelength 500 nm
	96.6 % @Thickness 25.0 mm, Wavelength 546 nm	96.6 % @Thickness 0.984 in, Wavelength 546 nm
	97.3 % @Thickness 10.0 mm, Wavelength 500 nm	97.3 % @Thickness 0.394 in, Wavelength 500 nm
	97.7 % @Thickness 25.0 mm, Wavelength 580 nm	97.7 % @Thickness 0.984 in, Wavelength 580 nm
	98.3 % @Thickness 25.0 mm, Wavelength 620 nm	98.3 % @Thickness 0.984 in, Wavelength 620 nm
	98.6 % @Thickness 10.0 mm, Wavelength 546 nm	98.6 % @Thickness 0.394 in, Wavelength 546 nm
	98.7 % @Thickness 25.0 mm, Wavelength 660 nm	98.7 % @Thickness 0.984 in, Wavelength 660 nm
	99.1 % @Thickness 10.0 mm, Wavelength 580 nm	99.1 % @Thickness 0.394 in, Wavelength 580 nm
	99.3 % @Thickness 25.0 mm, Wavelength 700 nm	99.3 % @Thickness 0.984 in, Wavelength 700 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
	99.7 % @Thickness 10.0 mm, Wavelength 700 nm	99.7 % @Thickness 0.394 in, Wavelength 700 nm
IR Transmittance	20 % @Thickness 25.0 mm, Wavelength 2500 nm	20 % @Thickness 0.984 in, Wavelength 2500 nm
	31.6 % @Thickness 25.0 mm, Wavelength 2325 nm	31.6 % @Thickness 0.984 in, Wavelength 2325 nm
	52.5 % @Thickness 10.0 mm, Wavelength 2500 nm	52.5 % @Thickness 0.394 in, Wavelength 2500 nm
	63.1 % @Thickness 10.0 mm, Wavelength 2325 nm	63.1 % @Thickness 0.394 in, Wavelength 2325 nm
	70.7 % @Thickness 25.0 mm, Wavelength 1970 nm	70.7 % @Thickness 0.984 in, Wavelength 1970 nm
	87 % @Thickness 10.0 mm, Wavelength 1970 nm	87 % @Thickness 0.394 in, Wavelength 1970 nm
	97.9 % @Thickness 25.0 mm, Wavelength 1530 nm	97.9 % @Thickness 0.984 in, Wavelength 1530 nm
	99.2 % @Thickness 10.0 mm, Wavelength 1530 nm	99.2 % @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	4.0 % @Thickness 25.0 mm, Wavelength 400 nm	4.0 % @Thickness 0.984 in, Wavelength 400 nm
	9.0 % @Thickness 10.0 mm, Wavelength 390 nm	9.0 % @Thickness 0.394 in, Wavelength 390 nm
	9.0 % @Thickness 25.0 mm, Wavelength 405 nm	9.0 % @Thickness 0.984 in, Wavelength 405 nm
	27.6 % @Thickness 10.0 mm, Wavelength 400 nm	27.6 % @Thickness 0.394 in, Wavelength 400 nm
	38.2 % @Thickness 10.0 mm, Wavelength 405 nm	38.2 % @Thickness 0.394 in, Wavelength 405 nm

Descriptive Properties
Climatic resistance	3
Grindability	2		ISO 12844
Phosphate resistance	3
Stress optical coefficient	2.8		[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.

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