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Application: halogen lamp, mercury lamp, single end lamp, automobile lamp, stage lamp, The thermoelectric boiler, The photocopier lamp, Water treatment lamp casing, quartz ware and pipe.
High Temperature Clear Customized Quartz Tube with Cheap Price is made of silicon dioxide in special industrial technology glass, which is a very good base material. Quartz glass has a series of excellent physical and chemical properties.
The feature of the clear quartz glass tubes is as follows: high purity, strong transmission, strict size control, low OH content and so on. The deep processing would be done according to client’s requirements, like neat cutting, fire polish, bending, and sealing, polished and so on. OH content can be controlled less than 20ppm\15ppm\10ppm.
Divide into these series : clear quartz glass tube (OD :1.5mm to 300mm), filter UV quartz tube, colorful quartz glass tube, Milky white tube and so on.
Property:
1. Incredibly thermally shock resistant (can be taken from red heat and plunged into water without cracking) |
2. Low thermal coefficient of expansion (TCE) and high softening temperature |
3. Optical transmission properties from ultra violet to infra red |
4. Good chemical resistance |
5. Excellent electrical insulator |
Parameters:
Property | Typical Values |
Density | 2.2×103 kg/m3 |
Hardness | 5.5 – 6.5 Mohs’ Scale 570 KHN 100 |
Design Tensile Strength | 4.8×107 Pa (N/m2) (7000 psi) |
Design Compressive Strength | Greater than 1.1 x l09 Pa (160,000 psi) |
Bulk Modulus | 3.7×1010 Pa (5.3×106 psi) |
Rigidity Modulus | 3.1×1010 Pa (4.5×106 psi) |
Young’s Modulus | 72GPa (10.5×106 psi) |
Poisson’s Ratio | 0.17 |
Coefficient of Thermal Expansion | 5.5×10 -7 cm/cm·°C (20°C-320°C) |
Thermal Conductivity | 1.4 W/m·°C |
Specific Heat | 670 J/kg·°C |
Softening Point | 1683°C |
Annealing Point | 1215°C |
Strain Point | 1120 °C |
Electrical Resistivity | 7×107 ohm cm (350°C) |
Dielectric Properties | (20°C and 1 MHz) |
Constant | 3.75 |
Strength | 5×107 V/m |
Loss Factor | Less than 4×10-4 |
Dissipation Factor | Less than 1×10-4 |
Index of Refraction | 1.4585 |
Constringence (Nu) | 67.56 |
Velocity of Sound-Shear Wave | 3.75×103 m/s |
Velocity of Sound/Compression Wave | 5.90X103 m/s |
Sonic Attenuation | Less than 11 db/m MHz |
Permeability Constants(700°C) | (cm3 mm/cm2 sec cm of Hg) |
Helium | 210×10-10 |
Hydrogen | 21×10-10 |
Deuterium | 17×10-10 |
Neon | 9.5×10-10 |