Our Products
High Quality Frosted Milky White Borosilicate Glass Tubes
Milky white frosted silica glass quartz tube
1. high temperature resistance glass can work under 1200°C continuously,and in short time can even work under 1450°C, its softening point is 1650°C,and the melting point is 1650-1800°C.
2.Corrosion resistant, Except hydrofluoric acid, Quartz tube do not react with any acid and base except hydrofluoric acid.the stability is 30 times of the ceramic,and 150 times of stainless steel .
3.Excellent thermal shock stability
4.High transmission to 85%
5.Electric insulation ,it is 10000 times of usual glass.
|
ensity
|
2.2×103 kg/m3
|
Dielectric Properties
|
(20°C and 1 MHz)
|
|
Hardness
|
5.5 – 6.5 Mohs’ Scale 570 KHN 100
|
Constant
|
3.75
|
|
Design Tensile Strength
|
4.8×107 Pa (N/m2) (7000 psi)
|
Strength
|
5×107 V/m
|
|
Design Compressive Strength
|
Greater than 1.1 x l09 Pa (160,000 psi)
|
Loss Factor
|
Less than 4×10-4
|
|
Bulk Modulus
|
3.7×1010 Pa (5.3×106 psi)
|
Dissipation Factor
|
Less than 1×10-4
|
|
Rigidity Modulus
|
3.1×1010 Pa (4.5×106 psi)
|
Index of Refraction
|
1.4585
|
|
Young’s Modulus
|
72GPa (10.5×106 psi)
|
Constringence (Nu)
|
67.56
|
|
Poisson’s Ratio
|
0.17
|
Velocity of Sound-Shear Wave
|
3.75×103 m/s
|
|
Coefficient of Thermal Expansion
|
5.5×10 -7 cm/cm·°C (20°C-320°C)
|
Velocity of Sound/Compression Wave
|
5.90X103 m/s
|
|
Thermal Conductivity
|
1.4 W/m·°C
|
Sonic Attenuation
|
Less than 11 db/m MHz
|
|
Specific Heat
|
670 J/kg·°C
|
Permeability Constants(700°C)
|
(cm3 mm/cm2 sec cm of Hg)
|
|
Softening Point
|
1683°C
|
Helium
|
210×10-10
|
|
Annealing Point
|
1215°C
|
Hydrogen
|
21×10-10
|
|
Strain Point
|
1120 °C
|
Deuterium
|
17×10-10
|
|
Electrical Resistivity
|
7×107 ohm cm (350°C)
|
Neon
|
9.5×10-10
|
|
Parameter/ Value
|
JGS1
|
JGS2
|
JGS3
|
|
Maximum Size
|
<φ200mm
|
<φ300mm
|
<φ200mm
|
|
Transmission Range
(Medium transmission ratio) |
0.17~2.10um (Tavg>90%)
|
0.26~2.10um (Tavg>85%)
|
0.185~3.52um (Tavg-85%)
|
|
OH- content
|
1200ppm
|
150ppm
|
5ppm
|
|
Fluorescence (ex254nm)
|
Virtually Free
|
Strong V-B
|
Strong V-B
|
|
Impurity Content
|
5ppm
|
20-40ppm
|
40-50ppm
|
|
Birefringence Constant
|
2-4nm/cm
|
4-6nm/cm
|
4-10nm/cm
|
|
Melting Method
|
Synthetic CVD
|
Oxy-Hydrogen melting
|
Electrical melting
|
|
Applications
|
Laser substrate: window, lens, prism, mirror
|
Semiconductor and high temperature window
|
IR & UV substrate
|
Packing & delivery quartz glass tube
1.plastic bubbles
2.polystyrene foam sheet
3.carton
4.wooden case
5.delivery by shipping or Express, such as EMS/DHL/TNT/UPS/Fedex within 3-5 working days.
Write your message here and send it to us
HOT-SALE PRODUCT
Quality First, Safety Guaranteed
