Borosilicate Glass Tubing

Our products include Pharmaceutical neutral glass tube, tubular vial, moulded glass vial, ampoule, rubber stoppers and tear-off caps, Borosilicate clear and colored glass tube and rod, glass cylinder and borofloat glass sheet, and the Lead glass tube, lead free glass tube.Borosilicate Glass Tubing (Black) Borosilicate Clear Glass Physical data sheetNo.Physics performanceNumerical #118alue Unit1coefficient of mean linear thermal expansion(20-300 )3.3±0.110-6K-12Transformation Temperature525±153Softening point820±104Working point1260±205Density at 202.23±0.2g/cm26Mean thermal conductivity(20-100)1.2W/m.K7Refractive Index0.92lChemical Composition in approximate weight %( main components)Item .SiO2B2O3AL2O3Na2O +K2O%811323.08Chemical Data:Hydrolytic resistance at 98 ISO719-HGB 1Hydrolytic resistance at 121 ISO720-HGB 1water resistance Grade 1 Test method: ISO1776Acid resistant Class Grade 1 Test method: ISO1776 Product FeatureBorosilicate Glass Tubing (Black)Produced by the international standards strictly