Ohara S-TIM35 Optical Glass

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Ohara S-TIM35 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	2.96 g/cc	2.96 g/cc

Chemical Properties	Metric	English	Comments
Acid Class, SR	1.0	1.0

Mechanical Properties	Metric	English	Comments
Hardness, Knoop	500 @Load 0.0999 kg	500 @Load 0.220 lb
Modulus of Elasticity	87.5 GPa	12700 ksi
Modulus of Rigidity	35.3 GPa	5120 ksi
Poissons Ratio	0.238	0.238
Abrasion	136	136	Aa

Thermal Properties	Metric	English	Comments
CTE, linear	7.50 µm/m-°C @Temperature -30.0 - 70.0 °C	4.17 µin/in-°F @Temperature -22.0 - 158 °F
	8.90 µm/m-°C @Temperature 100 - 300 °C	4.94 µin/in-°F @Temperature 212 - 572 °F
Thermal Conductivity	1.049 W/m-K @Temperature 35.0 °C	7.280 BTU-in/hr-ft²-°F @Temperature 95.0 °F
Transformation Temperature, Tg	622 °C	1150 °F	per thermal expansion curve
Softening Point	716 °C	1320 °F	10^7.65 poise; JIS-R3104 and ASTM-C338
Annealing Point	603 °C	1120 °F	10¹³ poise; ASTM-C336
Strain Point	579 °C	1070 °F	10^14.5 poise; JIS-R3103 and ASTM-C336

Optical Properties	Metric	English	Comments
Refractive Index	1.65283 @Wavelength 2325.42 nm	1.65283 @Wavelength 2325.42 nm
	1.65905 @Wavelength 1970.09 nm	1.65905 @Wavelength 1970.09 nm
	1.66615 @Wavelength 1529.58 nm	1.66615 @Wavelength 1529.58 nm
	1.67335 @Wavelength 1128.64 nm	1.67335 @Wavelength 1128.64 nm
	1.67606 @Wavelength 1013.98 nm	1.67606 @Wavelength 1013.98 nm	nt (Hg t line)
	1.68120 @Wavelength 852.11 nm	1.68120 @Wavelength 852.11 nm	ns (Cs s line)
	1.68496 @Wavelength 768.19 nm	1.68496 @Wavelength 768.19 nm	nA' (K A' line)
	1.68854 @Wavelength 706.52 nm	1.68854 @Wavelength 706.52 nm	nr (He r line)
	1.69222 @Wavelength 656.27 nm	1.69222 @Wavelength 656.27 nm	nC (H C line)
	1.69327 @Wavelength 643.85 nm	1.69327 @Wavelength 643.85 nm	nC' (Cd C' line)
	1.69426 @Wavelength 632.8 nm	1.69426 @Wavelength 632.8 nm	nHe-Ne
	1.69875 @Wavelength 589.29 nm	1.69875 @Wavelength 589.29 nm	nD (Na D line)
	1.69895 @Wavelength 587.56 nm	1.69895 @Wavelength 587.56 nm	nd (He D line)
	1.70442 @Wavelength 546.07 nm	1.70442 @Wavelength 546.07 nm	ne (Hg e line)
	1.71542 @Wavelength 486.13 nm	1.71542 @Wavelength 486.13 nm	nf (H F line)
	1.71684 @Wavelength 479.99 nm	1.71684 @Wavelength 479.99 nm	nF' (Cd F' line)
	1.72750 @Wavelength 441.57 nm	1.72750 @Wavelength 441.57 nm	nHe-Cd
	1.72941 @Wavelength 435.835 nm	1.72941 @Wavelength 435.835 nm	ng (Hg g line)
	1.74189 @Wavelength 404.656 nm	1.74189 @Wavelength 404.656 nm	nh (Hg h line)
Abbe Number	29.89	29.89	ν e
	30.13	30.13	ν d
Optical Dispersion	0.006722	0.006722	nd-nC; Partial Dispersion
	0.007266	0.007266	nC-nA'; Partial Dispersion
	0.01115	0.01115	ne-nC'; Partial Dispersion
	0.012199	0.012199	ne-nC; Partial Dispersion
	0.012417	0.012417	nF'-ne; Partial Dispersion
	0.012478	0.012478	nh-ng; Partial Dispersion
	0.013988	0.013988	ng-nF; Partial Dispersion
	0.016161	0.016161	nC-nt; Partial Dispersion
	0.01721	0.01721	nC'-nt; Partial Dispersion
	0.023199	0.023199	nF-nC
	0.023567	0.023567	nF'-nC'
	0.030465	0.030465	ng-nd; Partial Dispersion
Transmission, Visible	48 % @Wavelength 380 nm	48 % @Wavelength 380 nm
	72 % @Wavelength 390 nm	72 % @Wavelength 390 nm
	84 % @Wavelength 400 nm	84 % @Wavelength 400 nm
	93.9 % @Wavelength 420 nm	93.9 % @Wavelength 420 nm
	96.4 % @Wavelength 440 nm	96.4 % @Wavelength 440 nm
	97.4 % @Wavelength 460 nm	97.4 % @Wavelength 460 nm
	98.1 % @Wavelength 480 nm	98.1 % @Wavelength 480 nm
	98.6 % @Wavelength 500 nm	98.6 % @Wavelength 500 nm
	99.3 % @Wavelength 650 nm	99.3 % @Wavelength 650 nm
	99.4 % @Wavelength 550 nm	99.4 % @Wavelength 550 nm
	99.4 % @Wavelength 600 nm	99.4 % @Wavelength 600 nm
	99.5 % @Wavelength 700 nm	99.5 % @Wavelength 700 nm
IR Transmittance	93.1 % @Wavelength 2400 nm	93.1 % @Wavelength 2400 nm
	94.2 % @Wavelength 2200 nm	94.2 % @Wavelength 2200 nm
	98.8 % @Wavelength 1800 nm	98.8 % @Wavelength 1800 nm
	99.5 % @Wavelength 1400 nm	99.5 % @Wavelength 1400 nm
	99.5 % @Wavelength 1600 nm	99.5 % @Wavelength 1600 nm
	99.8 % @Wavelength 800 nm	99.8 % @Wavelength 800 nm
	99.9 % @Wavelength 900 nm	99.9 % @Wavelength 900 nm
	99.9 % @Wavelength 1000 nm	99.9 % @Wavelength 1000 nm
	99.9 % @Wavelength 1200 nm	99.9 % @Wavelength 1200 nm
UV Transmittance	14 % @Wavelength 370 nm	14 % @Wavelength 370 nm

Descriptive Properties
Acid Resistance, Powder Method, RAP)	1
CCI	0.00 B
	2.94 G
	2.94 R
coloring, λ 5	360
coloring, λ 80	400
Coloring, Internal Transmission λ 0.05	367
Coloring, Internal Transmission λ 0.80	397
Knoop Hardness Class	5
Melt Frequency	2
Ohara Code d	699301
Ohara Code e	704299
Ohara Status	Preferred
Phosphate Resistance, PR	1
Photoelastic Constant (ß)	3.04
Relative Price	4		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)	648		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.

CZOHARA965 / 192230

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