| 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 N-KZFS2 Glass.pdf  | 
          
| Price | EMAIL US sales@lookpolymers.com | 
| Physical Properties | Metric | English | Comments | 
|---|---|---|---|
| Density | 2.55 g/cc | 0.0921 lb/in³ | 
| Mechanical Properties | Metric | English | Comments | 
|---|---|---|---|
| Knoop Microhardness | 490 | 490 | .1/20 | 
| Modulus of Elasticity | 66.0 GPa | 9570 ksi | |
| Poissons Ratio | 0.266 | 0.266 | |
| Shear Modulus | 26.0 GPa | 3770 ksi | calculated | 
| Thermal Properties | Metric | English | Comments | 
|---|---|---|---|
| CTE, linear |           4.40           µm/m-°C           @Temperature -30.0 - 70.0 °C  | 
                  2.44           µin/in-°F           @Temperature -22.0 - 158 °F  | 
        |
|           5.40           µm/m-°C           @Temperature 20.0 - 300 °C  | 
                  3.00           µin/in-°F           @Temperature 68.0 - 572 °F  | 
        ||
| Specific Heat Capacity | 0.830 J/g-°C | 0.198 BTU/lb-°F | |
| Thermal Conductivity | 0.810 W/m-K | 5.62 BTU-in/hr-ft²-°F | |
| Transformation Temperature, Tg | 491 °C | 916 °F | 
| Optical Properties | Metric | English | Comments | 
|---|---|---|---|
| Refractive Index |           1.55836                     @Wavelength 587.6 nm  | 
                  1.55836                     @Wavelength 587.6 nm  | 
        n<sub>d</sub> | 
|           1.56082                     @Wavelength 546.1 nm  | 
                  1.56082                     @Wavelength 546.1 nm  | 
        n<sub>e</sub> | |
| Transmission, Visible |           97.1 %                     @Thickness 10.0 mm, Wavelength 380 nm  | 
                  97.1 %                     @Thickness 0.394 in, Wavelength 380 nm  | 
        |
|           98.7 %                     @Thickness 10.0 mm, Wavelength 405 nm  | 
                  98.7 %                     @Thickness 0.394 in, Wavelength 405 nm  | 
        ||
|           99.5 %                     @Thickness 10.0 mm, Wavelength 460 nm  | 
                  99.5 %                     @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 |           27.6 %                     @Thickness 10.0 mm, Wavelength 2500 nm  | 
                  27.6 %                     @Thickness 0.394 in, Wavelength 2500 nm  | 
        |
|           97.6 %                     @Thickness 10.0 mm, Wavelength 1530 nm  | 
                  97.6 %                     @Thickness 0.394 in, Wavelength 1530 nm  | 
        ||
| UV Transmittance |           1.2 %                     @Thickness 10.0 mm, Wavelength 300 nm  | 
                  1.2 %                     @Thickness 0.394 in, Wavelength 300 nm  | 
        |
|           81 %                     @Thickness 10.0 mm, Wavelength 334 nm  | 
                  81 %                     @Thickness 0.394 in, Wavelength 334 nm  | 
        ||
|           96.3 %                     @Thickness 10.0 mm, Wavelength 370 nm  | 
                  96.3 %                     @Thickness 0.394 in, Wavelength 370 nm  | 
        
| Chemical Properties | Metric | English | Comments | 
|---|---|---|---|
| Acid Class, SR | 52.3 | 52.3 | |
| Alkali Class, AR | 4.3 | 4.3 | |
| Stain Resistance Class, FR | 4.0 | 4.0 | 
| Descriptive Properties | Value | Comments | 
|---|---|---|
| B | 1 | |
| Climatic Resistance Test CR | 1 | |
| HG | 3 | |
| K (10-6mm2/N) | 4.02 | |
| Phosphate Resistance PR | 4.2 | |
| T1013.0 (°C) | 488 | |
| T107.6 (°C) | 600 |