solar collectors' glass

I. Specification of Product 1)Dimensions: 1150mm×850mm 1150mm×1700mm 1200mm×600mm other formats upon request 2)Available thickness: 1mm--12mm List of Thickness and Tolerance Thickness mm Tolerance mm Thickness mm Tolerance mm 1.50 ±0.20 4.00 ±0.15 2.00 ±0.20 5.00 ±0.15 2.25 ±0.20 5.50 ±0.15 2.75 ±0.20 6.00 ±0.15 3.0 ±0.20 6.50 ±0.20 3.30 ±0.20 7.50 ±0.30 3.80 ±0.15 8.00 ±0.30 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. II. Performance of the Product 1).Mechanical Performance Density 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 coefficient1.2W×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 resistanceISO719/DIN12111 HGB1/ISO720 HGA1 Acid resistance ISO1776/DIN12116 1 Alkali resistance ISO695/DIN52322 A2 4).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. III. Means of Processing for Customers Cutting Round corner Round edge Surface fine polishing Hole drilling Coating Surface printing and sand blasting Thermal bending