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Help CenterLamp Shade Borosilicate Glass
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Specifications
1.Great material for lighting glass2.low co-efficient of expansion
3.high softening point
4.180K thermal shock resistance
Great borosilicate float glass for lighting glass
I. Application 
lamp glass
II. Specification of Product
1) Dimensions: 1200mm×600mm 1200mm×900mm 1200mm×1800mm other formats upon request
2) Available thickness: 2mm--12mm
3) Net sized glass of strengthening can be supplied as per the customers requirement;
4) Glass of small cut size is available according the requirement from customers.
III. Performance of the Product
1). Mechanical Performance
Density ρ 2.23±0.02g/cm3
2). Thermodynamic Performance
Thermal expansion coefficient (0-300) 3.3±0.1×10-6K-1
Softening point 820±10
Strain point 516±10
Caloricity (20-100) 0.82KJ × (kg×K)-1
Thermal coefficient 1.2W×m×K-1
Thermal shock resistance 180K
Strengthening type 300K
Identical temperature difference 100K
Strengthening type 300 K
Maximum working temperature Short time(<10h): 500
Long time(>10h): 450
3). Chemical Performance
Water resistance ISO719/DIN12111 HGB1/ISO720 HGA1
Acid resistance ISO1776/DIN12116 1
Alkali resistance ISO695/DIN52322 A2
4). Optical Property
Refractive index Nd: 1.47384
Transmittance spectrum curve
5). Electrical Property
Specific resistance lgρ 8.0Ω×cm at 250
Dielectric dissipation fraction tan σ (1 megacycle at 20): 38×10-4
Dielectric constant ε=4.7
The above mentioned specifications are in conformity with standard of ISO3585 after inspection and detection as well as examination by the Quality Supervision and Inspection Center of the National Light Industry for Glass Product and, Beijing Glass & Ceramic Quality Supervision and Inspection Center.
IV. Means of Processing for Customers
Cutting
Round corner
Round edge
Surface fine polishing
Hole drilling
Coating
Surface printing and sand blasting
Thermal bending
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