Schott P-SK60 610579.308, Optical Glass

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Schott P-SK60 610579.308, Optical Glass
Categories:	Ceramic; Glass; Optical
Material Notes:	Information provided by SCHOTT.
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Physical Properties	Original Value	Comments

Density	3.08 g/cc

Chemical Properties	Original Value	Comments
Acid Class, SR	53.4
Alkali Class, AR	2.3
Stain Resistance Class, FR	5.0

Mechanical Properties	Original Value	Comments
Hardness, Knoop	601	HK (0.1/20)
Modulus of Elasticity	99.0 GPa
Poissons Ratio	0.253
Shear Modulus	39.5 GPa	Calculated

Thermal Properties	Original Value	Comments
CTE, linear	7.00 µm/m-°C @Temperature -30.0 - 70.0 °C
	8.90 µm/m-°C @Temperature 20.0 - 300 °C
Specific Heat Capacity	0.760 J/g-°C
Thermal Conductivity	1.13 W/m-K
Transformation Temperature, Tg	507 °C
Softening Point	606 °C	viscosity of 10^7.6 cP
Annealing Point	509 °C	viscosity of 10¹³ cP

Optical Properties	Original Value	Comments
Refractive Index	1.578 @Wavelength 2323.4 nm
	1.584 @Wavelength 1970.1 nm
	1.591 @Wavelength 1529.6 nm
	1.597 @Wavelength 1060 nm
	1.598 @Wavelength 1014 nm
	1.601 @Wavelength 852.1 nm
	1.605 @Wavelength 706.5 nm
	1.607 @Wavelength 643.8 nm
	1.607 @Wavelength 656.3 nm
	1.608 @Wavelength 632.8 nm
	1.61 @Wavelength 587.6 nm
	1.61 @Wavelength 589.3 nm
	1.612 @Wavelength 546.1 nm
	1.617 @Wavelength 486.1 nm
	1.618 @Wavelength 480 nm
	1.623 @Wavelength 435.8 nm
	1.628 @Wavelength 404.7 nm
	1.636 @Wavelength 365 nm
	1.645 @Wavelength 334.1 nm
	1.653 @Wavelength 312.6 nm
	1.66 @Wavelength 296.7 nm
Abbe Number	57.66	ve
	57.9	vd
Optical Dispersion	0.010541	nf - nc
	0.010628	nf' - nc'
Transmission, Visible	99.4 % @Thickness 25.0 mm, Wavelength 420 nm
	99.4 % @Thickness 25.0 mm, Wavelength 436 nm
	99.5 % @Thickness 25.0 mm, Wavelength 460 nm
	99.6 % @Thickness 25.0 mm, Wavelength 620 nm
	99.6 % @Thickness 25.0 mm, Wavelength 660 nm
	99.7 % @Thickness 25.0 mm, Wavelength 700 nm
	99.7 % @Thickness 25.0 mm, Wavelength 500 nm
	99.8 % @Thickness 25.0 mm, Wavelength 546 nm
	99.8 % @Thickness 10.0 mm, Wavelength 660 nm
	99.8 % @Thickness 25.0 mm, Wavelength 580 nm
	99.8 % @Thickness 10.0 mm, Wavelength 620 nm
	99.8 % @Thickness 10.0 mm, Wavelength 460 nm
	99.8 % @Thickness 10.0 mm, Wavelength 436 nm
	99.8 % @Thickness 10.0 mm, Wavelength 420 nm
	99.9 % @Thickness 10.0 mm, Wavelength 580 nm
	99.9 % @Thickness 10.0 mm, Wavelength 700 nm
	99.9 % @Thickness 10.0 mm, Wavelength 546 nm
	99.9 % @Thickness 10.0 mm, Wavelength 500 nm
IR Transmittance	40 % @Thickness 25.0 mm, Wavelength 2500 nm
	63 % @Thickness 25.0 mm, Wavelength 2325 nm
	69.3 % @Thickness 10.0 mm, Wavelength 2500 nm
	83.1 % @Thickness 10.0 mm, Wavelength 2325 nm
	90 % @Thickness 25.0 mm, Wavelength 1970 nm
	95.9 % @Thickness 10.0 mm, Wavelength 1970 nm
	98.3 % @Thickness 25.0 mm, Wavelength 1530 nm
	99.3 % @Thickness 10.0 mm, Wavelength 1530 nm
	99.8 % @Thickness 25.0 mm, Wavelength 1060 nm
	99.9 % @Thickness 10.0 mm, Wavelength 1060 nm
UV Transmittance	0.50 % @Thickness 25.0 mm, Wavelength 300 nm
	1.0 % @Thickness 10.0 mm, Wavelength 290 nm
	15 % @Thickness 10.0 mm, Wavelength 300 nm
	16 % @Thickness 25.0 mm, Wavelength 310 nm
	48 % @Thickness 10.0 mm, Wavelength 310 nm
	48 % @Thickness 25.0 mm, Wavelength 320 nm
	74.6 % @Thickness 10.0 mm, Wavelength 320 nm
	78 % @Thickness 25.0 mm, Wavelength 334 nm
	90.5 % @Thickness 10.0 mm, Wavelength 334 nm
	92 % @Thickness 25.0 mm, Wavelength 350 nm
	96.7 % @Thickness 10.0 mm, Wavelength 350 nm
	96.7 % @Thickness 25.0 mm, Wavelength 365 nm
	97.4 % @Thickness 25.0 mm, Wavelength 370 nm
	98.3 % @Thickness 25.0 mm, Wavelength 380 nm
	98.7 % @Thickness 10.0 mm, Wavelength 365 nm
	98.8 % @Thickness 25.0 mm, Wavelength 390 nm
	99 % @Thickness 10.0 mm, Wavelength 370 nm
	99.2 % @Thickness 25.0 mm, Wavelength 400 nm
	99.3 % @Thickness 10.0 mm, Wavelength 380 nm
	99.3 % @Thickness 25.0 mm, Wavelength 405 nm
	99.5 % @Thickness 10.0 mm, Wavelength 390 nm
	99.7 % @Thickness 10.0 mm, Wavelength 400 nm
	99.7 % @Thickness 10.0 mm, Wavelength 405 nm

Descriptive Properties
Acid resistance class	4	according to JOGIS
Climatic resistance	4
Grindability	86	according to JOGIS
Phosphate resistance	3.3
Stress optical coefficient	2.04	[10^-6mm²/N]
Water resistance class	3	according to JOGIS
Yield point/sag temperature	547°C

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CSGT9898 / 183151

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