Continental Trade Sp. z o. o.

Technical glass

Clear fused quartz GE214 tubes

Products withdrawn from the offer !

Products made of quartz glass GE-xxx are no longer in our offer !

Instead, we offer products made of quartz glass JGS1, JGS2 and JGS3. The properties of these types of glasses are shown here.

The following information is presented only to archival purposes and are not the subject of our offer.

Archival information (outdated)

Clear fused quartz GE214 tubes are used worldwide by the lamp industry for metal halide, halogen, infra-red and other lamp applications, UV germicidal, UV curing, semiconductor, thermocouple and fiber optic industries, whose performance and quality demands are one of the highest.
GE214 is a natural quartz grade whose high transmission, purity, thermal resistance, low OH (hydroxyl), along with its physical characteristics, and excellent visual properties, make it the ideal quartz material.

Fused quartz GE214 is also supplied with a lower hydroxyl content of <1ppm (OH--), for metal halide lamps and applications where the quartz must be devoid of hydroxyl and dissolved gases.

Properties and chemical composition of quartz GE 214 as well as other types of quartz glass, are discussed in detail in chapter Our offer/Technical glass/Types of materials/Quartz glass.  Below presents the most important of them.

Properties of different types of glasses are discussed here.

 

Typical dimensions and tolerances

Typical dimensions

I.D.
[mm]
O.D.
[mm]
  I.D.
[mm]
O.D.
[mm]
  I.D.
[mm]
O.D.
[mm]
  I.D.
[mm]
O.D.
[mm]
1,00 2,00   7,00 9,00   15,00 17,00   26,00 29,00
3,00   9,60   18,00   30,00
4,00   10,40   20,00   27,00 30,00
5,00   7,75 9,75   16,00 18,00   28,00 31,00
6,00   8,00 10,00   19,00   32,00
2,00 3,00   11,00   20,00   30,00 33,00
4,00   12,00   17,00 19,00   34,00
5,00   9,00 11,00   20,00   36,00
6,00   11,80   18,00 20,00   32,00 35,00
8,00   13,00   20,50   38,00
2,30 6,30   15,00   21,00   34,00 37,00
3,00 4,00   10,00 12,00   21,60   38,00
5,00   13,00   19,00 22,00   35,00 38,00
6,00   14,00   25,00   40,00
8,00   10,50 12,75   20,00 22,00   36,00 40,00
3,60 8,00   13,00   22,50   37,00 40,00
4,00 6,00   15,80   23,00   38,10 42,10
6,35   11,00 13,00   24,00   40,00 43,00
8,00   15,00   24,50   44,00
4,10 10,00   12,00 14,00   25,00   45,00
4,50 9,10   15,00   22,00 24,00   46,00
5,00 7,00   16,00   24,50   42,00 45,00
7,25   13,00 15,00   25,00   46,00
8,00   15,80   25,80   44,00 48,00
9,00   16,00   24,00 26,00   45,00 48,00
10,00   16,20   28,00   46,00 50,00
6,00 8,00   13,50 19,00   30,00   47,00 50,00
10,00   14,00 16,00   25,00 27,00   48,00 52,00
12,00   18,00   28,00   50,00 54,00
13,00   19,00   28,80   55,00

Descriptions: 

  • I.D. - inner diameter
  • O.D. - outer diameter

Tolerances

Outer diameter
[mm]
Diameter
tolerance
Length
[mm]
Length tolerance
[+/-]
Wall thickness
[mm]
Thickness
tolerance
3 - 6 2% up to 2540 +19 / -0 < / = 2.0 10%
> 6 - 20 2% up to 3060 +19 / -0 > 2.0 8%
> 20 - 40 1% up to 3060 +75/ -0       
> 40 - 50 1% up to 3060 +75 / -0
3 - 50   Cutting length up to +/- 0.5

If you cannot find the size contact us.

Properties
Mechanical 
Density 2,2 x 103 kg/m3
Mohs hardness 5,5 - 6,5
Design Tensile Strength 4,8 x 107 Pa
Compressive Strength >1,1 x 109 Pa
Bulk Modulus 3,7 x 1010 Pa
Rigidity Modulus 3,1 x 1010 Pa
Young's Modulus 7,2 x 1010 Pa
Poisson's Ratio 0,17
Thermal 
Coeff. of exp (20 - 320 °C) 5,5x10-7 cm/cm * °C
Thermal Conductivity (20°C) 1,4 W/m* °C
Specific Heat (20 °C) 670 J/kg*°C
Softening Point 1683°C
Annealing Point 1215°C
Strain Point 1120 °C
Electrical 
Electrical Resistivity (350 °C) 7 x 107 cm*Ω
Dielectric Constant (20 °C, 1MHz) 3,75
Dielectric Strength (20°C, 1MHz) 5 x 107 V/m
Dielectric Loss Factor (20 °C, 1MHz) < 4x10-4
Dissipation Factor (20 °C, 1MHz) < 1x10-4
Chemical composition

Chemical composition (ppm by weight, analysis via direct spectrometer reading)

TypAlAsBCaCdCrCuFeKLiMgMnNaNiPSbTiZrOH
GE214 14 <0.002 <0.2 0.4 <0.01 0.05 <0.05 0.2 0.6 0.6 0.1 <0.05 0.7 <0.1 <0.2 <0.003 1.0 0.8 <5
GE214A 14 <0.002 <0.2 0.4 <0.01 0.05 <0.05 0.2 0.6 0.6 0.1 <0.05 0.7 <0.1 <0.2 <0.003 1.0 0.8 <1
Average transmittance

While every attempt has been made to verify the source of the information, no responsibility is accepted for accuracy of data.

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