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Quartz Tube
Quartz Plate
Quartz Rod
Quartz Crucible
Quartz Instrument
Quartz Ring/Flange

Quartz Tube

basic information

Quartz glass tube is a special industrial technology glass made of silica, which is a very good basic material. Quartz glass has a series of excellent physical and chemical properties,widely use in optical, chemical, semiconductor industrial, liquid crystal ,lighting, .ect. Heat resistance, light transmission, electrical insulation and chemical stability are very good.

Advantage of Quartz Tube:

1. High purity , SiO2> 99.99%.

2. High temperature resistant.

3. Good thermal stability.

4. Acid-proof, Alkali-proof.

5. Excellent electrical insulator.

6.Good light transmittance.


Physical property of Quartz Tube: 

Mechanical properties Value Mechanical properties Value
Density 2.2 g/cm3 Deformation Point 1280
Compressive Strength 1100Mpa Softening Point 1780
Flexure Strength 67Mpa Annealing Temperature 1250
Poisson's ratio 0.14~0.17 Specific heat (20) 660J/kg
Young's Modulus 72000Mpa Thermal conductivity  (20) 1.4W/m
Modulus of Rigidity 31000Mpa Refractive Index 1.4585
Mohs Hardness 5.5~6.5 Coefficient of Thermal Expansion    (20-300) 5.5x10-7cm/cm


Electrical Performance Value
Resistivity 7x10⁷Ω.cm
Dielectric Strength 250~400Kv/cm
Dielectric Constant 3.7~3.9
Dielectric Absorption Coefficient <4x10⁴
Dielectric Loss Coefficient <1x10⁴


Available size:

Outer diameter: 1.5mm-450mm

Thickness:  0.75mm-10mm

Length: standard length 1000mm, 1240mm,1500mm and 2000mm, and we can be made according to customer’s request


Customize Size:

We can produce different shape and different sizes according the customer’s demand.

We can do the deep process, cut, fire end, bend, frosted, etc.


Application of quartz glass pipe/tube:

Quartz glass tube widely used for semi-conductor, light source, industry, test tube, lamp tube, diffusion tube, protective tube, laboratory instrument etc.


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