Features:
1) Available colors: clear , dark blue, light blue, amber, light yellow, green, pink, purple, red and opaque black ,opaque white.
2) Regularly stocked tubing size (diameter x wall thickness): 25 x 4mm,
32 x 3.2mm, 32 x 4mm, 38 x 3.2mm, 38 x 4mm, 44 x 4mm, 51 x 4mm,
51 x 4.8mm
3) Customized sizes could be made
4) Regularly stocked rod diameter: 4mm - 35mm
Main composition:
1) SiO2: 80±0.5%
2) B2O3: 13±0.2%
3) Al2O3: 2.4±0.2%
4) Na2O(+K2O): 4.3±0.2%
Chemical properties:
1) Coefficient of mean linear thermal expansion (20°C/300°C):
3.3±0.1 (10-6K-1)
2) Transformation temperature: 525±15°C
3) Working point: 1,260±20°C
4) Softening point: 820±10°C
5) Density at 20°C: 2.23g/cm²
6) Hydrolytic resistance at 98°C: ISO719-HGB1
7) Hydrolytic resistance at 121°C: ISO720-HGA1
8) Acid resistance class: ISO1776-1
9) Alkali resistance class: ISO695-A2
