Ohara S-PHM52Q Optical Glass

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Ohara S-PHM52Q Optical Glass
Categories:	Ceramic; Glass; Optical
Material Notes:	Information provided by Ohara Corporation.
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Physical Properties	Metric	English	Comments

Specific Gravity	3.51 g/cc	3.51 g/cc

Chemical Properties	Metric	English	Comments
Acid Class, SR	51	51

Mechanical Properties	Metric	English	Comments
Hardness, Knoop	420 @Load 0.0999 kg	420 @Load 0.220 lb
Modulus of Elasticity	84.0 GPa	12200 ksi
Modulus of Rigidity	32.7 GPa	4740 ksi
Poissons Ratio	0.285	0.285
Abrasion	313	313	Aa

Thermal Properties	Metric	English	Comments
CTE, linear	8.80 µm/m-°C @Temperature -30.0 - 70.0 °C	4.89 µin/in-°F @Temperature -22.0 - 158 °F
	10.3 µm/m-°C @Temperature 100 - 300 °C	5.72 µin/in-°F @Temperature 212 - 572 °F
Thermal Conductivity	0.738 W/m-K @Temperature 35.0 °C	5.12 BTU-in/hr-ft²-°F @Temperature 95.0 °F
Transformation Temperature, Tg	577 °C	1070 °F	per thermal expansion curve
Softening Point	650 °C	1200 °F	10^7.65 poise; JIS-R3104 and ASTM-C338
Annealing Point	559 °C	1040 °F	10¹³ poise; ASTM-C336
Strain Point	539 °C	1000 °F	10^14.5 poise; JIS-R3103 and ASTM-C336

Optical Properties	Metric	English	Comments
Refractive Index	1.58996 @Wavelength 2325.42 nm	1.58996 @Wavelength 2325.42 nm
	1.59514 @Wavelength 1970.09 nm	1.59514 @Wavelength 1970.09 nm
	1.60064 @Wavelength 1529.58 nm	1.60064 @Wavelength 1529.58 nm
	1.60545 @Wavelength 1128.64 nm	1.60545 @Wavelength 1128.64 nm
	1.60703 @Wavelength 1013.98 nm	1.60703 @Wavelength 1013.98 nm	nt (Hg t line)
	1.60977 @Wavelength 852.11 nm	1.60977 @Wavelength 852.11 nm	ns (Cs s line)
	1.61164 @Wavelength 768.19 nm	1.61164 @Wavelength 768.19 nm	nA' (K A' line)
	1.61334 @Wavelength 706.52 nm	1.61334 @Wavelength 706.52 nm	nr (He r line)
	1.61503 @Wavelength 656.27 nm	1.61503 @Wavelength 656.27 nm	nC (H C line)
	1.6155 @Wavelength 643.85 nm	1.6155 @Wavelength 643.85 nm	nC' (Cd C' line)
	1.61594 @Wavelength 632.8 nm	1.61594 @Wavelength 632.8 nm	nHe-Ne
	1.61791 @Wavelength 589.29 nm	1.61791 @Wavelength 589.29 nm	nD
	1.618 @Wavelength 587.56 nm	1.618 @Wavelength 587.56 nm	nd (He D line)
	1.62033 @Wavelength 546.07 nm	1.62033 @Wavelength 546.07 nm	ne (Hg e line)
	1.62479 @Wavelength 486.13 nm	1.62479 @Wavelength 486.13 nm	nf (H F line)
	1.62534 @Wavelength 479.99 nm	1.62534 @Wavelength 479.99 nm	nF' (Cd F' line)
	1.62938 @Wavelength 441.57 nm	1.62938 @Wavelength 441.57 nm	nHe-Cd
	1.63008 @Wavelength 435.835 nm	1.63008 @Wavelength 435.835 nm	ng (Hg g line)
	1.63448 @Wavelength 404.656 nm	1.63448 @Wavelength 404.656 nm	nh (Hg h line)
	1.64195 @Wavelength 365.015 nm	1.64195 @Wavelength 365.015 nm	ni (Hg i line)
Abbe Number	63.02	63.02	ν e
	63.32	63.32	ν d
Optical Dispersion	0.002971	0.002971	nd-nC; Partial Dispersion
	0.003394	0.003394	nC-nA'; Partial Dispersion
	0.00439	0.00439	nh-ng; Partial Dispersion
	0.004826	0.004826	ne-nC'; Partial Dispersion
	0.005017	0.005017	nF'-ne; Partial Dispersion
	0.005296	0.005296	ng-nF; Partial Dispersion
	0.005298	0.005298	ne-nC; Partial Dispersion
	0.007997	0.007997	nC-nt; Partial Dispersion
	0.008469	0.008469	nC'-nt; Partial Dispersion
	0.00976	0.00976	nF-nC
	0.009843	0.009843	nF'-nC'
	0.011862	0.011862	ni-ng; Partial Dispersion
	0.012085	0.012085	ng-nd; Partial Dispersion
	0.016603	0.016603	ni-nF'; Partial Dispersion
Transmission, Visible	96.1 % @Thickness 10.0 mm, Wavelength 380 nm	96.1 % @Thickness 0.394 in, Wavelength 380 nm	Internal Transmission
	97.8 % @Thickness 10.0 mm, Wavelength 390 nm	97.8 % @Thickness 0.394 in, Wavelength 390 nm	Internal Transmission
	98.6 % @Thickness 10.0 mm, Wavelength 400 nm	98.6 % @Thickness 0.394 in, Wavelength 400 nm	Internal Transmission
	99.1 % @Thickness 10.0 mm, Wavelength 420 nm	99.1 % @Thickness 0.394 in, Wavelength 420 nm	Internal Transmission
	99.2 % @Thickness 10.0 mm, Wavelength 440 nm	99.2 % @Thickness 0.394 in, Wavelength 440 nm	Internal Transmission
	99.4 % @Thickness 10.0 mm, Wavelength 460 nm	99.4 % @Thickness 0.394 in, Wavelength 460 nm	Internal Transmission
	99.6 % @Thickness 10.0 mm, Wavelength 480 nm	99.6 % @Thickness 0.394 in, Wavelength 480 nm	Internal Transmission
	99.7 % @Thickness 10.0 mm, Wavelength 500 nm	99.7 % @Thickness 0.394 in, Wavelength 500 nm	Internal Transmission
	99.7 % @Thickness 10.0 mm, Wavelength 650 nm	99.7 % @Thickness 0.394 in, Wavelength 650 nm	Internal Transmission
	99.7 % @Thickness 10.0 mm, Wavelength 700 nm	99.7 % @Thickness 0.394 in, Wavelength 700 nm	Internal Transmission
	99.8 % @Thickness 10.0 mm, Wavelength 550 nm	99.8 % @Thickness 0.394 in, Wavelength 550 nm	Internal Transmission
	99.8 % @Thickness 10.0 mm, Wavelength 600 nm	99.8 % @Thickness 0.394 in, Wavelength 600 nm	Internal Transmission
IR Transmittance	85 % @Thickness 10.0 mm, Wavelength 2400 nm	85 % @Thickness 0.394 in, Wavelength 2400 nm	Internal Transmission
	90 % @Thickness 10.0 mm, Wavelength 2200 nm	90 % @Thickness 0.394 in, Wavelength 2200 nm	Internal Transmission
	96 % @Thickness 10.0 mm, Wavelength 2000 nm	96 % @Thickness 0.394 in, Wavelength 2000 nm	Internal Transmission
	97.8 % @Thickness 10.0 mm, Wavelength 1800 nm	97.8 % @Thickness 0.394 in, Wavelength 1800 nm	Internal Transmission
	99.1 % @Thickness 10.0 mm, Wavelength 1600 nm	99.1 % @Thickness 0.394 in, Wavelength 1600 nm	Internal Transmission
	99.5 % @Thickness 10.0 mm, Wavelength 1400 nm	99.5 % @Thickness 0.394 in, Wavelength 1400 nm	Internal Transmission
	99.8 % @Thickness 10.0 mm, Wavelength 800 nm	99.8 % @Thickness 0.394 in, Wavelength 800 nm	Internal Transmission
	99.8 % @Thickness 10.0 mm, Wavelength 900 nm	99.8 % @Thickness 0.394 in, Wavelength 900 nm	Internal Transmission
	99.8 % @Thickness 10.0 mm, Wavelength 1000 nm	99.8 % @Thickness 0.394 in, Wavelength 1000 nm	Internal Transmission
	99.9 % @Thickness 10.0 mm, Wavelength 1200 nm	99.9 % @Thickness 0.394 in, Wavelength 1200 nm	Internal Transmission
UV Transmittance	2.0 % @Thickness 10.0 mm, Wavelength 320 nm	2.0 % @Thickness 0.394 in, Wavelength 320 nm	Internal Transmission
	17 % @Thickness 10.0 mm, Wavelength 330 nm	17 % @Thickness 0.394 in, Wavelength 330 nm	Internal Transmission
	44 % @Thickness 10.0 mm, Wavelength 340 nm	44 % @Thickness 0.394 in, Wavelength 340 nm	Internal Transmission
	69 % @Thickness 10.0 mm, Wavelength 350 nm	69 % @Thickness 0.394 in, Wavelength 350 nm	Internal Transmission
	85 % @Thickness 10.0 mm, Wavelength 360 nm	85 % @Thickness 0.394 in, Wavelength 360 nm	Internal Transmission
	92.4 % @Thickness 10.0 mm, Wavelength 370 nm	92.4 % @Thickness 0.394 in, Wavelength 370 nm	Internal Transmission

Descriptive Properties
Acid Resistance, Powder Method, RA(P)	3
CCI	0.00 B
	0.31 G
	0.31 R
coloring, λ 5	325
coloring, λ 80	365
Coloring, Internal Transmission λ 0.05	322
Coloring, Internal Transmission λ 0.80	357
Knoop Hardness Class	4
Ohara Code d	618633
Ohara Code e	620630
Phosphate Resistance, PR	4
Photoelastic Constant (ß)	1.41
Water Resistance, RW(P)	1
Weathering Resistance (Surface Method) W(S)max	1
Yield Point, At (°C)	614		per thermal expansion curve

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.

CZOHARA784 / 281623

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