Request for Quotation
Partially available in 48 h Express-Service
(see table for 48h availability)
B 270® - Superwite is a universal, economically priced quality glass with high transparency for visible and near-infrared light. The SCHOTT glass has a colorless crystal-clear appearance. It is very stable to the solarization effects that usually occur when a material continuously is exposed to the sun or UV light. When other glass materials begin to change their color, B 270® stays white and clear. B 270® is available as drawn glass, fire-polished sheet glass, or unpolished raw glass ingots. B 270® as sheet-glass exists at many standard thicknesses. For applications where surface quality and waviness are not crucial, B270® can work without further treatment. However, to meet the requirements of more demanding optical applications, B 270® sheet glass materials should be mechanically ground and optically polished. Grinding and polishing make it possible to use B 270® for more demanding optics while keeping costs low.
In addition to B 270®, the new B 270® i is now available. The improved glass composition offers better chemical resistance, which primarily allows using the material for selected biotechnology applications. All other physical properties remain the same.
To get a quote for windows or substrates made of SCHOTT B 270® Superwite glass with specific dimensions, please choose a thickness from the table in the specifications or click the button below.
Partially available in 48 h Express-Service
Transmission spectrum
Transmission curve of B270®
UV-Transmittance at 1,15 mm
UV-Transmission of B270®
Thickness (mm) |
Tolerance |
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---|---|---|
0,90 | ±0,10 | - |
1,00 | ±0,10 | ✔ |
1,15 | ±0,15 | ✔ |
1,65 | ±0,15 | ✔ |
2,00 | ±0,20 | ✔ |
3,00 | ±0,20 | - |
4,00 | ±0,20 | ✔ |
5,00 | ±0,20 | - |
6,00 | ±0,30 | - |
8,00 | ±0,30 | - |
10,00 | ±0,40 | - |
The thicknesses marked with "✔" are also available within 48–h Express Service. | ||
Occasionally other B270 Superwite strengths are available. If you cannot find the desired thickness here, please send us your inquiry. |
Refractive Index (20 °C) |
||
---|---|---|
Description |
Wavelength (nm) |
Refractive Index |
ng |
436 |
1,5341 |
nF' |
480 |
1,5297 |
nF |
486 |
1,5292 |
ne |
546 |
1,5251 |
nd |
587,5 |
1,5230 |
nD |
589,3 |
1,5229 |
nC' |
644 |
1,5207 |
nC |
656 |
1,5203 |
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