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Schott K7 Glass
| Category | Ceramic , Glass |
| Manufacturer | Schott North America |
| Trade Name | |
| Port | Shanghai port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | Schott K7 Glass.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
Information Provided by SCHOTT North America, Inc.
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 2.53 g/cc | 0.0914 lb/in³ |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Knoop Microhardness | 520 | 520 | .1/20 |
| Modulus of Elasticity | 69.0 GPa | 10000 ksi | |
| Poissons Ratio | 0.214 | 0.214 | |
| Shear Modulus | 28.0 GPa | 4060 ksi | calculated |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 8.40 µm/m-°C @Temperature -30.0 - 70.0 °C |
4.67 µin/in-°F @Temperature -22.0 - 158 °F |
|
| 9.70 µm/m-°C @Temperature 20.0 - 300 °C |
5.39 µin/in-°F @Temperature 68.0 - 572 °F |
||
| Transformation Temperature, Tg | 513 °C | 955 °F |
| Optical Properties | Metric | English | Comments |
|---|---|---|---|
| Refractive Index | 1.51112 @Wavelength 587.6 nm |
1.51112 @Wavelength 587.6 nm |
n<sub>d</sub> |
| 1.51314 @Wavelength 546.1 nm |
1.51314 @Wavelength 546.1 nm |
n<sub>e</sub> | |
| Transmission, Visible | 99.3 % @Thickness 10.0 mm, Wavelength 380 nm |
99.3 % @Thickness 0.394 in, Wavelength 380 nm |
|
| 99.6 % @Thickness 10.0 mm, Wavelength 405 nm |
99.6 % @Thickness 0.394 in, Wavelength 405 nm |
||
| 99.6 % @Thickness 10.0 mm, Wavelength 460 nm |
99.6 % @Thickness 0.394 in, Wavelength 460 nm |
||
| 99.8 % @Thickness 10.0 mm, Wavelength 580 nm |
99.8 % @Thickness 0.394 in, Wavelength 580 nm |
||
| 99.8 % @Thickness 10.0 mm, Wavelength 700 nm |
99.8 % @Thickness 0.394 in, Wavelength 700 nm |
||
| IR Transmittance | 65 % @Thickness 10.0 mm, Wavelength 2500 nm |
65 % @Thickness 0.394 in, Wavelength 2500 nm |
|
| 99.2 % @Thickness 10.0 mm, Wavelength 1530 nm |
99.2 % @Thickness 0.394 in, Wavelength 1530 nm |
||
| UV Transmittance | 9.0 % @Thickness 10.0 mm, Wavelength 300 nm |
9.0 % @Thickness 0.394 in, Wavelength 300 nm |
|
| 90.5 % @Thickness 10.0 mm, Wavelength 334 nm |
90.5 % @Thickness 0.394 in, Wavelength 334 nm |
||
| 99 % @Thickness 10.0 mm, Wavelength 370 nm |
99 % @Thickness 0.394 in, Wavelength 370 nm |
| Chemical Properties | Metric | English | Comments |
|---|---|---|---|
| Acid Class, SR | 2.0 | 2.0 | |
| Alkali Class, AR | 1.0 | 1.0 | |
| Stain Resistance Class, FR | 0.00 | 0.00 |
| Descriptive Properties | Value | Comments |
|---|---|---|
| B | 1 | |
| Climatic Resistance Test CR | 3 | |
| HG | 3 | |
| K (10-6mm2/N) | 2.95 | |
| Phosphate Resistance PR | 2.3 | |
| T1013.0 (°C) | 0 | |
| T107.6 (°C) | 712 |
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