vacuum high borosilicate glass tube

1.Vacuum high borosilicate glass tube 2.Resistant to thermal shock,heat and water 3.Good anticorrosion 4.OEM will be ok!

Features:

1.This kinds of vacuum high borosilicate glass tube is highly resistant to thermal shock and heat

2.Resistant to water,strong acids,alkali and saline solutions

3.Factory outlets and export direct selling

4.It is manufactured by modern technology

5.Conform to major standards(E.g.DIN ISO 3585 and ASTM E438 Type 1,Class A)

Size:

1.Wall thickness:0.6mm-12mm

2.Length:0-2300mm

3.Inside diameter:10mm-500mm

Color:  transparent

Advantage:

1:low expansion coefficient

2:Highly resistant to thermal shock and heat

3.Resistant to water,strong acids,alkali and saline solutions

Usage:

1.Solar collect

2.Chemical industry

3.Electrical light source

4.Labware

5.Alternative energy

6.Environmental technology

7.Microelectronics and medicine

Chemical properties:

Chemical Composition	Physical Properties
SiO2 = 80.6%	Coefficient of expansion  (20°C–300°C) 3.3 x 10-6 K-1
B2O3 = 13.0%	Density 2.23g/cm3
Na2O = 4.0%	Refractive index (Sodium D line)1.474
Al2O3 = 2.3%	Dielectric constant (1MHz, 20°C) 4.6
Optical Information	Specific heat (20°C) 750J/kg°C
Refractive index (Sodium D line) =1.474	Thermal conductivity (20°C) 1.14W/m°C
Visible light transmission, 2mm thick glass = 92%	Poisson’s Ratio (25°C – 400°C) 0.2
Visible light transmission, 5mm thick glass= 91%	Young’s Modulus (25°C) 6400 kg/mm2

vacuum high borosilicate glass tube