Jinan GT Industrial Co., Ltd.
Main products:Borosilicate Glass Tubing,Amber Tubing,Colored Tube
Contact Us
  • Contact Person : Ms. Lee Mary
  • Company Name : Jinan GT Industrial Co., Ltd.
  • Tel : 0086-531-88021366
  • Fax : 0086-531-88021399
  • Address : Shandong,Jinan,No.101, Huayuan Road, Jinan
  • Country/Region : China
  • Zip : 250100

lead glass tube

lead glass tube
Product Detailed
we are supply to Philips now.

Lead Glass Tubing


Lead glass is primarily composed of silica and lead. It has moderate electrical resistance, density, refractive index and x-ray absorption rate.

    The softening point of lead glass also tends to lower than that of soda glass. It exhibits moderate durability and is easily worked.

    Major uses are stem and exhaust tube of fluorescent and incandescent lamp. It is also used for neon signs, pilot lamp, starter lamps and electron gun for TV braun.


Chemical & Physical PropertyData
Coefficient of Expansion Rate (20°C-300°C)91.0±2×10-7/K
Soften Point635±10°C
When the Mass resistance is 100MΩ.cm,temperature of TK-100≥240°C
Density2.83±0.03 g/cm3
Strain Point440.00 °C
Annealing Point470.00 °C
Working Point1010.00 °C
Melting Point1480.00 °C
Content of Lead21%

lead glass tube

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