Type: Custom Clear Large Size Fused Quartz Tubes
Material: High fused quartz(99.998% SiO2)
Packing: Wooden Case / Carton, Plastic Foam into Packing
Shipping: Free by Sea, Cheap Freight by Express to Door
Item NO.: 180416
MOQ: No limited
Deep Processing Available: Bending, Closing End, Firing End, Welding Flange , Drilling holes, etc
Custom Clear Large Size Fused Quartz Tubes for Producing Patio Heater
Description
Custom Clear Large Size Fused Quartz Tubes
Supplying large size(OD from 100mm to 300mm) fused quartz tubes in cheapest price. Our tubes can withstand 1200°C high temperature and can be used as a heater shell for the production of patio heaters.
The thermal expansion coefficient of the large diameter fused quartz tube is extremely small. It can withstand the widely ranging change of temperature, and will not break up because of the mutation of temperature difference. The light transmittance is good for fused quartz tubes. The quartz glass has good transmittance in the whole band and high rate transmission. The electrical insulation property is good, because the resistance value of the quartz glass is equal to ten thousand times that of the ordinary glass. It is a good electrical insulation material. Even under high temperature, it also gets good insulation performance. These feature have a good use in many application fields.
For prompt quotation, please contact us at below form.
Fused quartz glasses have the excellent properties for their following features:
- High working temperature(1250°C)
- Thermal shock resistance
- High electrical insulation
- Optical transparency
- Chemical inertness
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 |
