1.2 The photo showed square cut pieces of 3.3 borosilicate glass.

The photo showed square cut pieces of 3.3 borosilicate glass.

With high quality 3.3 float borosilicate glass sheet, through cutting by special speed control cutting machine, we have professional cutting experience to make the cutting section vertical, which can effectively avoid the internal  defects of borosilicate glass and improve the production yield. In addition, we have more advantage on the cost and quality control with our professional experience in packaging and logistics.

The thickness is 2, 2.6, 3, 3.3, 3.8, 4, 5, 5.5, 6, 6.5, 7.5, 8, 9, 10, 11, 12, 15 and 20mm.

Technical parameters of float borosilicate glass

(1)Dimensions  1150*1700mm  1150*850mm （Maximum1700*2000mm）

(2)Thickness   2--20mm

Thickness and tolerance

Thicknes(mm)	Tolerance(mm)	Thickness(mm)	Tolerance(mm)
2.0	±0.2	5.0	±0.2
2.5	±0.2	5.5	±0.2
3.0	±0.2	6.0	±0.2
3.3	±0.2	6.5	±0.2
3.8	±0.2	7.5	±0.2
4.0	±0.2	8.0	±0.2

(3)Cut according to customer demand to provide enhanced NET feet of glass

(4)Customers can request supply cut into small pieces

Mechanical Performance

Density   ρ               2.23+/-0.02g/cm3

Thermodynamic Performance

Thermal expansion coefficient       (0-300°C ) 3.3+/-0.1x10-6K-1

Softening point         820+/-10°C

Strain point            516+/-10°C

Caloricity              (20-100°C) 0.82KJ x (kgxK)-1

Thermal coefficient      1.2WxmxK-1

Thermal shock resistance 180K

Strengthening type       300K

Identical temperature difference 100K

Strengthening type  300 K

Maximum working temperature

Short time(<10h): 500 °C

Long time(>10h): 450°C

Chemical Performance

Water resistance    ISO719/DIN12111 HGB1/ISO720 HGA1

Acid resistance     ISO1776/DIN12116 1

Alkali resistance    ISO695/DIN52322 A2

Optical Property

Refractive index Nd:    1.47384

Transmittance spectrum curve

Electrical Property

Specific resistance lgN    8.0Ω xcm at 250°C

Dielectric dissipation fraction tanσ (1 megacycle at 20):   38x10-4

Dielectric constant    ε=4.7