What is borosilicate glass 3.3?

Views:4     Author:Site Editor     Publish Time: 2020-09-04      Origin:Site Inquire

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Borosilicate Glass3.3



      Borosilicate Glass is one of transparent colourless glass, through wavelength is between 300 nm to 2500 nm, transmissivity is more than 90%. Coefficient of thermal expansion is 3.3. It can acidproof and alkalifast ,the high temperature resistant is about 400℃C.If course handling , the high temperature resistant can reach 550°C or so. 


      Additionally, borosilicate glass 3.3 differs from other materials of construction used for process plant equipment because of its very low thermal expansion coefficient

   

      Apply to lighting fixture , chemical industryelectron, high temperature equipment and so on


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Borosilicate Glass
Glass Borosilicate3.3


Borosilicate Glass Sheet Technique Index Sign:

1.Surface quantity:0/0,40/20 80/50

2.Surface accuracy:1/10 into,1/4 into2 into

3.Thickness business trip:±0.02mm

4.Center deviation:5Arc second1Arc Minute

5.Process the scope:The thickness is the most thin to attain 0.5mm 

6.Coated

7.Tempered


Product Name

thickness 0.7-80mm Heat Resistance High Borosilicate Glass 3.3

Temperature resistance

650℃

Color

transparent clear

Transmittance

92%

Density

2.23 g/cm3

Morris hardness

7

Composition content

Boron: 12.5~13.5%, silicon: 78~80%

Shape

Round, Square with holes, uncommon shape etc.

Modulus of elasticity

63·103N·mm-2

Poisson's ratio

0.18

Tensile strength

4.8x107pa(N/M2)

Compressive strength

(0-300) 3.3±0.1×10-6K-1

Thermal conductivity

1.2W·m-1·k-1

Annealing point

560°C

Softening point

820±10°C

Electrical resistivity

>1018 Ωm

Dielectric constant

4.6 1 MHz, 25

Water resistance

ISO719 HGB Level 1

Acid resistance

ISO195 HGB Level 1

Alkali resistance

ISO695 HGB Level 2


Applications

Household electrical appliance such as oven glass and microwave glass

Household electrical appliance such as oven glass and microwave glass


Jumbo power of Light such as spotlight glass and floodlight glass

Jumbo power of Light such as spotlight glass and floodlight glass


Optical filter of Fine instruments

Optical filter of Fine instruments


Safety protection, such as bullet proof glass

Safety protection, such as bullet proof glass



To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided




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