High quality quartz tube

High quality quartz tube High quality quartz tube available as continuous machine drawn and automatic controlled tubing. This glass has typical characteristics of high purity, good spectral transmission, well controlled dimension and low OH and so on. It servers as the first choice of heat resistant material for halogen lamps, mercury lamps, metal halide lamps and other quartz lamps. This glass can be supplied in the range of 3-80 mm outside diameter, 0.6-2.0 mm wall thickness and 800-2400mm length. Exhaust tubes with good CPK are suitable for high-speed streamline production. And further processing of trim cutting, fire polishing, bending and pinching can be done according to the requirement of customers. OH-content can be controlled within 20ppm/ 15ppm/ 10ppm/ 5ppm/ 2ppm/ according to the requirement of customers. Dimensional Tolerance Range of ODODWTSidingOut of RoundBow/1220mm≤6mm±2.0%±10%12%2.00%2.5mm6.00mm-15.00mm±1.25%±8%10%1.50%2.5mm15.00mm-20.00mm±1.25%±10%15%1.50%2.5mm20.00mm-25.00mm±1.25%±10%15%1.50%3.0mm25.00mm-30.00mm±1.35%±12%15%1.50%3.0mm30.00mm-80.00mm±1.5%±14%15%2.00%3.0mmPhysical Property 214219254Density (g/cc)2.22.212.21Coefficient of Thermal Expansion(cm/cm°C)5.5*10-75.9*10-76.7*10-7Softening Point (°C)168316601615Annealing Point (°C)121512041163Strain Point (°C)112011061066Refractive Index1.45851.4561.46Specific Heat (j/kgOK)670700690Compressive Strength (Pa)>1.1*1090.94*1090.55*109Youngs Modulus (Pa)7.2*10107.5*10107*1010Chemical Composition CrGeFeMgTiGaAlNaLiK0.10.41.50.40.10.8162.30.52.0 Application: It servers as the first choice of heat resistant material for halogen lamps, mercury lamps, metal halide lamps and other quartz lamps.