GS15 Graded Seal Glass Rod

GS15 Graded Seal Glass Rod

Available Standard Sizes

  • 2mm - 4mm

Nominal length 1m

For custom sizes please contact us

Glass Composition

  • SiO2 83.0
  • B2O3 10.1
  • AI2O3 4.9
  • BaO 1.4
  • CaO 0.51
  • Fe2O3 0.01

Coefficient of Expansion

  • 13.5-15.5 x 10-7 (temperature range 50 to 400 c)
    (control range measured on unannealed glass)

Other Properties

  • Strain point 635°c
  • Annealing point 740°c
  • Softening point 1200°c
  • Log _ 250 9.8
  • Log _ 350 8.2
  • Tk100 365°c

All values are nominal except for specified expansion range.

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