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special glass technology
Schachtstraße 04
59379 Selm
fon +49 2592 / 9102 - 0
fax +49 2592 / 9102 - 90
info@mennes.de
plastics technology
Werner Straße 90
59379 Selm
fon +49 2592 / 9102 - 0
fax +49 2592 / 9102 - 90
info@mennes.de
Tubes, capillary tubes and bars made of Borosilicate glass BORAN® made by MENNES GmbH are known for their stability and their resistance against quick temperature changes. They are used in industrial plant construction, in the laboratory industry or the lighting industry.
We can offer drillings, millings, cut-outs and special processing on high-performance machines. Tube tapering and tube flaring is also possible on request. Sealing of two or more tube sections is realizable.
The maximum length, that has ever been produced by us, amounts to 8600 mm.
Technical Data
use duration
life temporary
500°C
permanent load
360°C
Compressive strength
calculation of pressure resistance (p) if wall thickness (WD) + external diameter (AD) are given
p = (WD • 20 • k/s) / (AD - WD)
expansion coefficient
Median linear coefficient of thermal expansion a (20°C, 300°C) according to DIN ISO 7991
3,3 • 10-6 K-1
Glass tubes BORAN®
