Jiangmen Bolipai Glass Products Co., Ltd.  

Product Name: Fire Rated Borosilicate Glass Fireproof Pyrex Round Glass Usage: Furniture, Door, Building, Window Color: Clear Transparency: Transparent Shape: Plate Moh's Hardness: 7 Structure: Solid Type: Refractory Glass Thickness: 2-25mm Expansion Coefficient: 3.25 Trademark: Bolipai Transport Package: Wooden Crate/Carton /Customized Package Specification: ISO9001, CCC Origin: Guangdong China HS Code: 7002390090 Product Description Fire Rated Borosilicate Glass Fireproof Pyrex round GlassSpecifications:1. Excellent visual effect2. Powerful effect on Fire, hydrolysis and Chemical Resistance3. High resistance to thermal shock.BOROSILICATE FLOAT GLASS DEscriptIonBolipai GLASS Borosilicate glass has a very low thermal expansion coefficient, about one-third that of ordinary glass. This reduces material stresses caused by temperature gradients, thus making it more resistant to breaking. This makes it a popular material for objects like telescope mirrors, where it is essential to have very little deviation in shape. It is also used in the processing of high-level nuclear waste, where the waste is immobilised in the glass through a process known as vitrification (contrast with Synroc).BOROSILICATE FLOAT GLASS 3.31. Household electrical appliance (panel for oven and fireplace, microwave tray etc. );2. Environmental engineering and chemical engineering (Lining layer of repellence, autoclave of chemical reaction and safety spectacles);3. Lighting (spotlight and protective glass for jumbo power of floodlight);4. Power regeneration by solar energy (solar cell base plate);5. Fine instruments (optical filter);6. Semi-conductor technology (LCD disc, display glass);7. Iatrology and bio-engineering;Mechanical propertiesDensity (g/cm3) (at 25°C)2.23±0.02Knoop hardness480Flexure strength24MpaThermodynamic propertiesCoefficient of thermal expansion (α) (0-300°C)3.3±0.1×10-6Softening point (°C)830±10Strain point (°C)521±10Specific heat capacity(2-100°C)0.83KJ×(kg×K)-1Thermal conductivity1.2W×(m×k)-1Thermal shock resistance(K)300Temperature performance(K)200Maximum working temperature(>10h, 600°C), (>10h, 550°C)Chemical propertiesWater resistenceISO719/DIN12111, HGB1ISO720, HGA1Acid resistanceISO1776/DIN12116, 1Alkali resistanceISO695/DIN52322, A2Optical propertiesRefractive indexNd: 1.47379Transmittance (5mm)>92%Electrical propertiesSpecific resistance 1g250°C, 8.0Ω×cmDielectric lossTan , 38×(10)-4Dielectric Constant4.7Chemical componentSiO279-82%B2O38-14%Na2O2-4%Al2O31-6%