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Specifications
1.low co-efficient of expansion;2.high softening point;
3.light tranmittance: 91%-92%
4.clear, no visable bubble or tin flaw
Great borosilicate float glass for lighting glass
Product Characteristics
General
Glass type |
Borosilicate Glass 3.3 |
Manufacturing |
Float process |
Colour |
Clear |
Sizes
|
Thickness (mm)
|
|
2.25 |
3.00 |
3.80 |
5.00 |
6.00 |
7.50 |
|
|
2.75 |
3.30 |
4.00 |
5.50 |
6.50 |
8.00 |
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Thickness tolerance |
±0.2 |
±0.3 |
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|
Dimension |
Dimensions: 1150mm×850mm 1150mm×1700mm other formats upon request
Available thickness: 2mm--12mm, 15mm, 20mm
|
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|
Net sized glass of strengthening can be supplied Glass of cut size is available | ||||||||
|
Size tolerance |
L ≤ 1 m |
1 m < L≤ 2 m |
||||||
± 1 mm |
± 2 mm |
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Physical Properties
Density (at 25) |
2.23±0.02g/3 |
Modulus of elasticity |
68kN/mm2 |
Thermal Date
Co-efficient of expansion(20-300) |
3.3±0.1×10-6 |
Softening point |
820±10 |
Strain point |
516±10 |
Heat conductivity at 90 |
1.2W/mk |
Caloricity |
(20-100) 0.82KJ × (kg×K)-1 |
|
Thermal shock resistance Strengthening type |
180K 300K |
|
Identical temperature difference Strengthening type |
100K 300 K |
|
Maximum working temperature Short time (<10h): Long time (>10h): |
500 450 |
Optical Property
Refractive |
nd : 1.47384 |
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Light transmission |
Thickness (mm) |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
Quantity |
92% |
91% |
||||||
Chemical Performance
Water resistance |
ISO719/DIN12111 HGB1 ISO720 HGA1 |
Acid resistance |
ISO1776/DIN12116 1 |
Alkali resistance |
ISO695/DIN52322 A2 |
Electrical Property
Specific resistance lgρ |
8.0Ω×cm at 250 |
Dielectric dissipation fraction |
38×10-4 |
Dielectric constant |
ε=4.7 |
Borosilicate fire resistance glass
Application:
Fire-resistance glass for doors and windows;
Fire-resistance glass for cut off;
Sealed insulating glass;
Glass used in curtain walls;
Fire-resistant glass for celling, floor;
Product Characteristic:
General
Glass type |
Borosilicate Glass |
Manufacturing |
Float process |
Color |
Clear |
Integrity |
C classitem >90 min. |
Executive standard |
GB15763.1-2001 |
Sizes
Thickness |
6mm |
8mm |
10mm |
12mm |
Thickness tolerance |
±0.2 |
±0.3 |
±0.3 |
±0.3 |
Max. |
1500mm×3000mm |
|||
Mini. |
100mm×100mm(smaller sizes may be possible on request) |
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Size tolerance |
L ≤1m |
1m L ≤3m |
||
±1mm |
±2mm |
|||
Physical Properties
Density (at 25) |
2.28±0.02 g/3 |
Modulus of elasticity |
68kN/mm2 |
Thermal Date
Co-efficient of expansion(20-300) |
4.0±0.1×10-6 |
Heat conductivity at 90 |
1.26W/mk |
Softening point |
845±5 |
Optical Property
Light transmission |
≥91% (6mm) |
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