Ohara S-PHM53 Optical Glass

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Ohara S-PHM53 Optical Glass
Categories:	Ceramic; Glass; Optical
Material Notes:	ECO optical glass that does not contain any lead or arsenic. 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	390 @Load 0.0999 kg	390 @Load 0.220 lb
Modulus of Elasticity	70.8 GPa	10300 ksi
Modulus of Rigidity	27.5 GPa	3990 ksi
Poissons Ratio	0.285	0.285
Abrasion	378	378	Aa

Thermal Properties	Metric	English	Comments
CTE, linear	9.30 µm/m-°C @Temperature -30.0 - 70.0 °C	5.17 µin/in-°F @Temperature -22.0 - 158 °F
	10.9 µm/m-°C @Temperature 100 - 300 °C	6.06 µin/in-°F @Temperature 212 - 572 °F
Thermal Conductivity	0.615 W/m-K @Temperature 35.0 °C	4.27 BTU-in/hr-ft²-°F @Temperature 95.0 °F
Transformation Temperature, Tg	610 °C	1130 °F	per thermal expansion curve
Softening Point	681 °C	1260 °F	10^7.65 poise; JIS-R3104 and ASTM-C338

Optical Properties	Metric	English	Comments
Refractive Index	1.57583 @Wavelength 2325.42 nm	1.57583 @Wavelength 2325.42 nm
	1.58092 @Wavelength 1970.09 nm	1.58092 @Wavelength 1970.09 nm
	1.58634 @Wavelength 1529.58 nm	1.58634 @Wavelength 1529.58 nm
	1.59103 @Wavelength 1128.64 nm	1.59103 @Wavelength 1128.64 nm
	1.59256 @Wavelength 1013.98 nm	1.59256 @Wavelength 1013.98 nm	nt (Hg t line)
	1.59519 @Wavelength 852.11 nm	1.59519 @Wavelength 852.11 nm	ns (Cs s line)
	1.59697 @Wavelength 768.19 nm	1.59697 @Wavelength 768.19 nm	nA' (K A' line)
	1.59858 @Wavelength 706.52 nm	1.59858 @Wavelength 706.52 nm	nr (He r line)
	1.60019 @Wavelength 656.27 nm	1.60019 @Wavelength 656.27 nm	nC (H C line)
	1.60064 @Wavelength 643.85 nm	1.60064 @Wavelength 643.85 nm	nC' (Cd C' line)
	1.60106 @Wavelength 632.8 nm	1.60106 @Wavelength 632.8 nm	nHe-Ne
	1.60292 @Wavelength 589.29 nm	1.60292 @Wavelength 589.29 nm	nD (Na D line)
	1.60300 @Wavelength 587.56 nm	1.60300 @Wavelength 587.56 nm	nd (He D line)
	1.60520 @Wavelength 546.07 nm	1.60520 @Wavelength 546.07 nm	ne (Hg e line)
	1.60940 @Wavelength 486.13 nm	1.60940 @Wavelength 486.13 nm	nf (H F line)
	1.60993 @Wavelength 479.99 nm	1.60993 @Wavelength 479.99 nm	nF' (Cd F' line)
	1.61372 @Wavelength 441.57 nm	1.61372 @Wavelength 441.57 nm	nHe-Cd
	1.61438 @Wavelength 435.835 nm	1.61438 @Wavelength 435.835 nm	ng (Hg g line)
	1.61850 @Wavelength 404.656 nm	1.61850 @Wavelength 404.656 nm	nh (Hg h line)
	1.62547 @Wavelength 365.015 nm	1.62547 @Wavelength 365.015 nm	ni (Hg i line)
Abbe Number	65.15	65.15	ν e
	65.44	65.44	ν d
Optical Dispersion	0.002812	0.002812	nd-nC; Partial Dispersion
	0.003223	0.003223	nC-nA'; Partial Dispersion
	0.004114	0.004114	nh-ng; Partial Dispersion
	0.004563	0.004563	ne-nC'; Partial Dispersion
	0.004726	0.004726	nF'-ne; Partial Dispersion
	0.004977	0.004977	ng-nF; Partial Dispersion
	0.005011	0.005011	ne-nC; Partial Dispersion
	0.00763	0.00763	nC-nt; Partial Dispersion
	0.008078	0.008078	nC'-nt; Partial Dispersion
	0.009215	0.009215	nF-nC
	0.009289	0.009289	nF'-nC'
	0.01109	0.01109	ni-ng; Partial Dispersion
	0.01138	0.01138	ng-nd; Partial Dispersion
	0.015545	0.015545	ni-nF'; Partial Dispersion
Transmission, Visible	93.5 % @Wavelength 380 nm	93.5 % @Wavelength 380 nm
	96.3 % @Wavelength 390 nm	96.3 % @Wavelength 390 nm
	97.7 % @Wavelength 400 nm	97.7 % @Wavelength 400 nm
	98.6 % @Wavelength 420 nm	98.6 % @Wavelength 420 nm
	98.7 % @Wavelength 440 nm	98.7 % @Wavelength 440 nm
	98.9 % @Wavelength 460 nm	98.9 % @Wavelength 460 nm
	99.2 % @Wavelength 480 nm	99.2 % @Wavelength 480 nm
	99.4 % @Wavelength 500 nm	99.4 % @Wavelength 500 nm
	99.6 % @Wavelength 650 nm	99.6 % @Wavelength 650 nm
	99.6 % @Wavelength 700 nm	99.6 % @Wavelength 700 nm
	99.7 % @Wavelength 600 nm	99.7 % @Wavelength 600 nm
	99.8 % @Wavelength 550 nm	99.8 % @Wavelength 550 nm
IR Transmittance	83 % @Wavelength 2400 nm	83 % @Wavelength 2400 nm
	87 % @Wavelength 2200 nm	87 % @Wavelength 2200 nm
	96.7 % @Wavelength 1800 nm	96.7 % @Wavelength 1800 nm
	98.7 % @Wavelength 1600 nm	98.7 % @Wavelength 1600 nm
	99.3 % @Wavelength 1400 nm	99.3 % @Wavelength 1400 nm
	99.6 % @Wavelength 1000 nm	99.6 % @Wavelength 1000 nm
	99.7 % @Wavelength 800 nm	99.7 % @Wavelength 800 nm
	99.7 % @Wavelength 900 nm	99.7 % @Wavelength 900 nm
	99.7 % @Wavelength 1200 nm	99.7 % @Wavelength 1200 nm
UV Transmittance	3.0 % @Wavelength 310 nm	3.0 % @Wavelength 310 nm
	10 % @Wavelength 320 nm	10 % @Wavelength 320 nm
	25 % @Wavelength 330 nm	25 % @Wavelength 330 nm
	45 % @Wavelength 340 nm	45 % @Wavelength 340 nm
	64 % @Wavelength 350 nm	64 % @Wavelength 350 nm
	78 % @Wavelength 360 nm	78 % @Wavelength 360 nm
	88 % @Wavelength 370 nm	88 % @Wavelength 370 nm

Descriptive Properties
Acid Resistance, Powder Method, RAP)	5
CCI	0.00 B
	0.56 G
	0.56 R
coloring, λ 5	300
coloring, λ 80	360
Coloring, Internal Transmission λ 0.05	313
Coloring, Internal Transmission λ 0.80	362
Knoop Hardness Class	4
Melt Frequency	2
Ohara Code d	603655
Ohara Code e	605651
Ohara Status	Preferred
Phosphate Resistance, PR	4
Photoelastic Constant (ß)	1.21
Relative Price	6		S-BSL7 = 1
Water Resistance, RW(P)	1
Weathering Resistance (Surface Method) W(S)max	1
Weathering Resistance (Surface Method) W(S)min	2
Yield Point, At (°C)	644		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.

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CZOHARA937 / 192202

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