боросиликатного стекла трубка (Pyrex)

various type borosilicate glass tube,tubing, neutral glasstube ,soda lime glasstube, clear&colored pyrex glass tube and rod available, Color: clear, red, yellow, green, blue, purple, amber, pink Special Shape Tube: Triangle tube, Square tube, Ellipse tube, Flat tube, Outside Stripe tube, Inside Stripe Tube, hexangular Tube. Special Shape Rods: Triangle Rods, Square Rods, Ellipse Rods, Flat Rods,Physical Data No. Physics PerformanceNumerical ValueUnit1coefficient of mean linear thermal expansion (20;300) 3.30.110-6 K-12Transformation Temperature 525153Softening point 820104Working point 1260205Density at 20 2.230.02g/cm36Mean thermal conductivity(20-100) 1.2W/m.k7Refractive index 0.921 Chemical Composition in approximate weight % (main components) SiO2 B2O3 Na2O + K2O Al2O3 81 13 4 2 Chemical Data: Hydrolytic resistance at 98 ISO719-HGB 1 Hydrolytic resistance at 121 ISO720-HGA 1 Acid resistance Class test method:ISO17763.3 borosilicate Glass tubing Specification for Tubing3.3 borosilicate Glass tubing Specification for Tubing