borofoat glass borofloat glass
Borosilicate 3.3 Float Glass
Product Description
Borosilicate Float Glass 3.3 Application: (Borosilicate 3.3 serves as a material of truly functional and wide applications: ) Household electrical appliance (Panel for oven and fireplace, microwave tray etc. ); Environmental engineering and chemical engineering (Lining layer of repellence, autoclave of chemical reaction and safety spectacles); Lighting (Spotlight and protective glass for jumbo power of floodlight); Power regeneration by solar energy (solar cell base plate); Fine instruments (optical filter); Semi-conductor technology (LCD disc, display glass); Iatrology and bio-engineering; Safety protection (bullet proof glass). Product characteristic:
General: | ||||||||||||||||||
Glass type | Borosilicate Glass 3.3 | |||||||||||||||||
Manufacturing | Float process | |||||||||||||||||
Color | Clear | |||||||||||||||||
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Sizes: | ||||||||||||||||||
Thickness (mm) | 1.50 | 2.25 | 3.00 | 3.80 | 5.00 | 6.00 | 7.50 | |||||||||||
2.00 | 2.75 | 3.30 | 4.00 | 5.50 | 6.50 | 8.00 | ||||||||||||
Thickness tolerance | ±0.2 | ±0.3 | ||||||||||||||||
Dimension | 600mmx1200mm(max.800mm x2000mm) | |||||||||||||||||
Net sized glass of strengthening can be suppliedGlass of cut size is available | ||||||||||||||||||
Size tolerance | L≤1m | 1m<L≤2m | ||||||||||||||||
±1mm | ±2mm | |||||||||||||||||
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Physical Properties: | ||||||||||||||||||
Density (at 25°C) | 2.23±0.02g/cm 3 | |||||||||||||||||
Modulus of elasticity | 68kN/mm 2 | |||||||||||||||||
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Thermal Date: | ||||||||||||||||||
Coefficient of expansion (20-300°C) | 3.3±0.1 x10 -6 | |||||||||||||||||
Softening point | 820±10°C | |||||||||||||||||
Strain point | 516±10°C | |||||||||||||||||
Thermal conductivity at 90°C | 1.2W/mk | |||||||||||||||||
Caloricity | (20-100°C) 0.82KJ x(kg xK) -1 | |||||||||||||||||
Thermal shock resistanceStrengthening type | 180K>300K | |||||||||||||||||
Identical temperature differenceStrengthening type | 100K>300K | |||||||||||||||||
Maximum working temperatureShort time (<10h)Long time (>10h) | 500°C450°C | |||||||||||||||||
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Optical Property: | ||||||||||||||||||
Refractive index | nd: 1.47384 | |||||||||||||||||
Light transmission | Thickness (mm) | 2 | 3 | 4 | 5 | 6 | 7 | 8 | ||||||||||
Numerical value | 92% | 91% | ||||||||||||||||
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Chemical Performance: | ||||||||||||||||||
Water resistance | ISO719/DIN12111 HGB1 ISO720 HGA1 | |||||||||||||||||
Acid resistance | ISO1776/DIN12116 1 | |||||||||||||||||
Alkali resistance | ISO695/DIN52322 A2 | |||||||||||||||||
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Electrical Property: | ||||||||||||||||||
Specific resistance lg ρ | 8.0Ωxcm at 250°C | |||||||||||||||||
Dielectric dissipation fraction tan σ(1MHz 20°C) | 38x10 -4 | |||||||||||||||||
Dielectric constant | ε=4.7 | |||||||||||||||||
borofloat glass
