Glass Tube, Soda-Lime, 30mm OD, 1.5mm Wall x 12"

One 12" length of soda-lime glass tubing with fire-polished ends.

We can also provide glass tubing in arbitrary lengths, as well as custom soda-lime or borosilicate glass items (please inquire).

Tubes are guaranteed to fuse reliably (without leaving stresses after annealing) with the other soda-lime glass tubing we carry. Our Dumet wire also provides a reliable glass-to-metal seal against this glass.

Tubes are packaged individually with bubble-wrap and shipped in thick kraft mailing tubes to prevent shipping damage. We will combine shipping for multiple lengths and diameters in the most secure and economical way.

• Material: Soda-Lime Glass (Schott AR-Glas®; Hydrolitic Class 3)
• Outside Diameter: 30mm ±.29
• Wall Thickness: 1.5mm ±.06
• Length: 12" ±.1 (304.8" ±.2.5)
• Ends: Precision Fire-Polished
• Max. Straightness Error: .8mm / 1000mm
• Max. Longitudinal Stress: 4.5MPa
• Coefficient of Thermal Expansion: 9.1 · 10^-6K^-1
• Transformation Temperature: 525°C
• Annealing Point: 530°C
• Softening Point: 720°C
• Working Point: 1,040°C
• Chemical Composition:

  SiO2 69%	B2O3 1%	K2O 3%	Al2O3 4%
  Na2O 13%	BaO 2%	CaO 5%	MgO 3%

• Meets: ISO 719 (Hydrolitic Glass), DIN 12 116 (Acid glass) and ISO 695 (Alkali Glass) for chemical resistance