Description of Clear Round Borosilicate glass 3.3 Sight Glass Level Gauge

Borosilicate glass is one of transparent colorless glass,through wavelength is between 300 nm to 2500 nm,transmissivity is more than 90%. Coefficient of expansion is 3.3. It can acid proof and alkali, the high temperature resistant is about 450℃. If course handling,the temperature resistant can reach 550℃ or so. Apply to lighting fixture,chemical industry ,electron,high temperature equipment and so on .

Technical Date

Density	2.5 g/cm3
Hardness	>7
Tensile strength	4.8x107pa(N/M2)
Compressive strength	40-90MPa
Modulus of elasticity	63·103N·mm-2
Poisson's ratio	0.18
Coefficient of thermal expansion	(0-300) 3.3±0.1×10-6K-1
Thermal conductivity	1.2W·m-1·k-1
Softening point	820±10°C
Annealing point	560°C
Strain point	516±10°C
Electrical resistivity	>1018 Ωm
Dielectric constant	4.6 1 MHz, 25

Application

1. Household electrical appliance (panel for oven and fireplace, microwave tray etc.);