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Crystal Light Borosilicate Colored Glass Tubing (Black)
Product Name: Crystal Light Borosilicate Colored Glass Tubing (Black)Model Number: TY0013Place of Origin: ChinaFeatures:1) Available colors: dark blue, light blue, amber, light yellow, green,pink, purple, red and opaque black2) Regularly stocked tubing size (diameter x wall thickness):25 x 4.0mm, 32 x 3.2mm, 32 x 4.0mm, 38 x 3.2mm, 38 x 4.0mm,44 x 4.0mm, 51 x 4.0mm, 51 x 4.8mm3) Customized sizes are available (outside diameter: 3.5 - 300mm)4) Main composition:a) SiO2: 80 ±0.5%b) B2O3: 13 ±0.2%c) Al2O3: 2.4 ±0.2%d) Na2O (+K2O): 4.3 ±0.2%5) Chemical properties:a) Coefficient of mean linear thermal expansion (20/300 °C):3.3±0.1 (10-6K-1)b) Transformation temperature: 525±15°Cc) Working point: 1,260 ±20°Cd) Softening point: 820 ±10°Ce) Density at 20°C: 2.23g/cm²f) Hydrolytic resistance at 98°C: ISO719-HGB1g) Hydrolytic resistance at 121°C: ISO720-HGA1h) Acid resistance class: ISO1776-1i) Alkali resistance class: ISO695-A2Packing: export carton
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