Precision Glass Tube

Precision Glass Tube with 0.001 mm Tolerance Used in Laboratory, Hospital Precision glass tubes ith accurate dimension and 0.001 mm tolerance are made of soda-lime, borosilicate or quartz material. Because of their different sizes, various colors, acid, alkali resistance and low thermal expansion coefficient features, precision glass tubes are widely used with pistons and many precision instruments in laboratory, factory, hospital, and so on. A short straight polished precision glass tube with a coin diameter thickness wall. PGT-01: The short polished percision glass tube has good thermal and chemical properties.Five long straight precision polished glass tubes with heavy wall. PGT-02: The heavy wall precision glass capillary tubes have strong acid, alkali, high temperature resistance ability. Specifications of precision glass tube Material: soda-lime, borosilicate, quartz. Inside diameter: 5?500 mm. Outside diameter: 5.1?550 mm. Tolerance: 0.001 mm. Length: 10?2500 mm. Color: white, red, green, pink, yellow and so on. Edge handling: polishing. Package Packaged in 5 layer corrugated cartons or pallet, with foam or bubble wrap. Thermal properties Table 1: Precision Glass Tubes Thermal Properties Material Soda-lime Borosilicate Quartz SiO2 Content 60% ? 75% > 81% > 90% Density at 25 °C 2.53 g/cm3 2.23 g/cm3 2.20 g/cm3 Coefficient of Thermal Expansion 8.6 × 10-6 m/K 3.3 × 10-6 m/K 5.5 × 10-6 m/K Softening Point 726 °C 820 °C 1780 °C Melting Point 780 °C 1680 °C 2000 °C Annealing Point 546 °C 560 °C 1120 °C Temperature for Short Time 400 °C 500 °C 1500 °C Temperature for Long Time 350 °C 450 °C 1200 °C Specific Heat 0.18 J/kg °C 0.9 J/kg °C 670 J/kg °C Features of precision glass tube Tight dimensional tolerance, tolerance can be as small as 0.001 mm. Stable chemical property, acid and alkali resistance. Can work under high temperature for a long time. Various sizes for using. Excellent outlooking, various colors. Applications of p....

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