Quartz Glass Tube For Heating Lamp

Quartz Glass Tube
GE214
Quartz Glass Tube For Heating Lamp
OD:2-300MM L:20MM-2000MM
heater tube ,Heating Lamp,GE214

This is clear fused quartz glass tube available as continuous machine drawn and automatic controlled tubing .this glass has the typical characteriastics of high purity ,good spectral transmission,weellcontrolled dimension and lower OH and so on .it serves as the first choice of heat resistant material for halogen lamps ,mercury lamps ,metal halide lamps and other quartz lamps .this glass can be supplied in the range of 3-80mm outside diameter,0.6-2.0mm wall thickness and 1200-1500mm length. Exhaust tube with good CPK are suiable for highspeed streamline production .and further processing of trim cutting ,fire polishing ,bending and pinchingcan be done according to the requirement of cusomers .OH-content can be controlled within 20ppm/15ppm/10ppm/5ppm/2ppm according to the requirement of customers.
The detailed dimensional tolerance and technical data can be found in table I,table II,table III, tableIV, tableV.
Clear Fused Quartztubing,Quartz tubing standard sizes
Dimensional Tolerance (table )
Range of OD
OD
WT
Siding
Ellipsticity
Camber/1220mm
≤5mm
±2.0%
±10%
12%
2.0%
2.5mm
6.00-15.00mm
±1.25%
±8%
10%
1.5%
2.5mm
15.00-20.00mm
±1.25%
±10%
15%
1.5%
2.5mm
20.00-25.00mm
±1.25%
±10%
15%
1.5%
3.0mm
25.00-30.00mm
±1.35%
±12%
15%
1.5%
3.0mm
30.00-80.00mm
±1.5%
±14%
15%
2.0%
3.0mm
80.00-300.00mm
±1.5%
±14%
15%
2.0%
3.0mm
Chemical Composition unit: ppm(table)
Cr
Ge
Fe
Mg
Ti
Ca
Al
Na
Li
K
0.1
0.4
1.5
0.4
0.1
0.8
16
2.3
0.5
2.0
Lights transmittance(table )
nm
≤220
255
280
315
350
380
590
780
%
89
91
93
93
93
93
93.2
93.4
Physical capability(table V)

214
Densityg/cc
2.2
Coefficient ofexpansion cm/cm
5.5×10
-7
Softening point()
1683
Annealning point()
1215
Strain point()
1120
Refraction
1.4585
Heatj/kg0k
670
Compressive Strength(Pa)
1.1×10
9
Young's modulus(Pa)
7.2×10
10
Resistivityohm cm
7×10
9
Permittivity
3.75