Soda Lime Glass Tube

Soda‑lime glass tube is a cost‑effective general‑purpose glass made from silica, soda ash and limestone. It can be supplied in full‑length raw tubes or cut‑to‑size pieces, and features good visible‑light transmittance alongside fair basic chemical stability, while its low softening point allows convenient hot‑blowing, bending and other thermal processing suitable for mass production.

feature application available size Chemical Properties Physical Properties

Feature

It possesses reliable mechanical toughness for routine industrial and decorative usage. The glass maintains good stability against water, ambient atmosphere and common weak‑acid substances, paired with consistent visible‑light transmission to fulfill optical requirements for lighting‑oriented products. Excellent workability makes it easy to form into diverse finished parts.

Application

Optimized for blown glass fabrication, soda‑lime glass tube finds broad application in fluorescent lamp outer tubes, neon sign assemblies, incandescent lamp shells and assorted decorative glass components.

Available Size

Parameter	Value
Outer Diameter	2~26mm
Wall Thickness	0.4~1.7mm
Length	0.85m, 1.25m, 1.40m, 1.60m and 1.70m

OEM is acceptable

Chemical Properties

Elements	SiO₂	Na₂O	CaO	MgO	Al₂O₃	K₂O	B₂O₃	Fe₂O₃
% (Wt)	71.2±1	15.2±0.5	5±0.4	3±0.3	2.8±0.2	1.2±0.2	1.2±0.2	0.15~0.25

*For reference only

OEM is acceptable

Physical Properties

Items	Data
Linear Expansivity (30-380℃)	(91.5±1.5) X 10^-7/℃
Density	2.5 g/cm³
Softening Point (Viscidity=10^7.6pas)	685±10℃
Annealing Point	560~600℃
Working Point	1100℃
Heat Stability	≥110℃
Chemical Stability	Hydrolytic Class III