High borosilicate glass sheet

Size: 650X1150MM

Thickness:1mm-22mm

It can be cut small pieces according to the requirements of customers.

1. Mechanical properties

   2.23g/cm2

2. Thermodynamic properties

  Coefficient of mean linear thermal expansion (20°C/300°C):3.3±0.1 (10-6K-1) 

 Thermal shock T   230

Heat capacity (0-100 ) 0.195cal / g

Thermal Conductivity cal / cm s 0.0028

  Maximum working temperature of short-term (<10h) 500 long-term (> 10h) 450

Softening point 820 ± 10

3. Chemical properties

  Water resistance   ISO719/DIN12111     HGB1   ISO720    HGA1

   Acid resistance  ISO1776/DIN12116        1

4.  Electrical properties

   Resistivity lgρ (25 ) 15

   Dielectric constant ε4.9

Working field :

widely used in high-temperature observation windows, lighting (high-power lighting panel), appliances, laboratory containers, solar, lighting and other fields.