GS44 Graded Seal Glass Rod

GS44 Graded Seal Glass Rod

Available Standard Sizes

  • 2mm - 4mm

Nominal length 1m

For custom sizes please contact us

Glass Composition

  • SiO2 70.4
  • B2O3 20.6
  • Al2O3 1.4
  • K2O 4.0
  • CaO 0.2
  • Na2O 3.3
  • Li2O 0.1
  • Fe2O3 0.01

Coefficient of Expansion

  • 42.0 to 44.0 x 10-7 (temperature range 50° to 400°C)

Other Properties

  • Strain point 510°C
  • Annealing point 550°C
  • Softening point 790°C
  • Log _ 250 9.1
  • Log _ 350 7.3
  • Tk100 305°C

All values are nominal except for specified expansion range.

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