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    Clear Quartz Tube >> Clear Quartz Tube  


    Clear Quartz Tube

    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

    ID×0D(mm)
    (mm)
    1×3
    1.00
    1.2×3
    0.90
    1.6×3
    0.70
    2×3
    0.50
    2×4
    1.00
    2×6
    2.00
    2.3×3.6
    0.60
    2.35×3.65
    0.65
    2.35×4
    0.83
    2.35×4.35
    1.00
    3×5
    1.00
    4×6
    1.00
    5×7
    1.00
    6×8
    1.00
    6×10
    2.00
    7×9
    1.00
    7.75×9.75
    1.00
    7.8×10
    1.10
    8×10
    1.00
    8×12
    2.00
    8.5×10.5
    1.00
    9×11
    1.00
    9×11.8
    1.40
    ID×0D(mm)
    (mm)
    10×12
    1.00
    10.5×12.75
    1.13
    11×13
    1.00
    11.7×14.1
    1.20
    12×14
    1.00
    12.75×15
    1.13
    13×15
    1.00
    15×17
    1.00
    15×18
    1.50
    16×18
    1.00
    18×20.5
    1.25
    18×21.6
    1.80
    19×25
    3.00
    20×22
    1.00
    20×22.8
    1.40
    20×23
    1.50
    20.2×23
    1.40
    22×25
    1.50
    22×25.3
    1.65
    22×25.8
    1.90
    23×26
    1.50
    25×27.5
    1.25
    25×28
    1.50
    ID×0D(mm)
    (mm)
    25×28.8
    1.00
    27×30
    1.50
    30×33
    1.50
    32×35
    1.50
    34×38
    2.00
    35×38
    1.50
    37×40
    1.50
    38×44
    3.00
    38.1×42.1
    2.00
    40×43
    1.50
    42×45
    1.50
    45×48
    1.50
    47×50
    1.50
    48×52
    2.00
    50×54
    2.00
    50×55
    2.50
    53×57
    2.00
    55×59
    2.00
    57×61
    2.00
    60×64
    2.00
    63×67
    2.00
    65×69
    2.00
    66×70
    2.00
    68×72
    2.00
    70×80
    2.50

    Dimensional Tolerance  (table Ⅱ)
    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

    Chemical Composition  unit: ppm(tableⅢ)
    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 Ⅳ)
    nm ≤220 255 280 315 350 380 590 780
    % 89 91 93 93 93 93 93.2 93.4

    Physical capability(table V)
      214 219 254
    Density(g/cc) 2.2 2.21 2.21
    Coefficient of expansion (cm/cm) 5.5×10-7 5.9×10-7 6.7×10-7
    Softening point() 1683 1660 1615
    Annealning point() 1215 1204 1163
    Strain point () 1120 1106 1066
    Refraction 1.4585 1.456 1.460
    Heat(j/kg0k) 670 700 690
    Youngs modulus (pa) >1.1×109 0.94×109 0.55×109
    Young's modulus (Pa)
    7.2×1010 7.5×1010 7×1010
    Resistivity(ohm cm@350℃) 7×109 2.5×1010 5×1010
    Permittivity (@1MHz)
    3.75 5.8 6

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