UV-Block Quartz Tube

Dimensional ToleranceRange of ODODWTSidingOut of RoundBow/1220(mm)≤6mm±2.0%±10%12%2.0%2.5mm6.00-15.00mm±1.25%±8%10%1.5%2.5mm15.00-20.00mm±1.25%±10%15%1.5%2.5mm20.00-25.00mm±1.25%±10%15%1.5%3.0mm25.00-30.00mm±1.35%±12%15%1.5%3.0mmChemical composition (unit : ppm)CrGeFeMgT iCaAlNaLiKOH<0.5<0.41.50.52.52.32.52.50362.51—50Physical PropertiesDensity 20°c kg*m-3(×103)2.2Coefficient of expansion 25-300°c-1(×10-6)0.58Softening point(°c)1620Annealing point(°c)1160Strain point(°c)1060Youngs modulus(Pa)7.3×105Spectral Transmission at 1.0mm thicknessNm<220230-280290-330315350380590780