HM Heat Resistant Transparent Crystal Glass Pipe for Smoking
HM Heat Resistant Transparent Crystal Glass Pipe for Smoking
HM Heat Resistant Transparent Crystal Glass Pipe for Smoking 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, sealing, polished and so on. OH content can be controlled less than 20ppm\15ppm\10ppm\5ppm\2ppm.
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.
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Property:
| 1. Incredibly thermally shock resistant (can be taken from red heat and plunged into water without cracking) | 4. Good chemical resistance |
| 2. Low thermal coefficient of expansion (TCE) and high softening temperature | 5. Excellent electrical insulator |
| 3. Optical transmission properties from ultra violet to infra red | 6. High radiation resistance |
Parameters:
| Property | Typical Values |
| Density | 2.2x103 kg/m3 |
| Hardness | 5.5 - 6.5 Mohs' Scale 570 KHN 100 |
| Design Tensile Strength | 4.8x107 Pa (N/m2) (7000 psi) |
| Design Compressive Strength | Greater than 1.1 x l09 Pa (160,000 psi) |
| Bulk Modulus | 3.7x1010 Pa (5.3x106 psi) |
| Rigidity Modulus | 3.1x1010 Pa (4.5x106 psi) |
| Young's Modulus | 72GPa (10.5x106 psi) |
| Poisson's Ratio | 0.17 |
| Coefficient of Thermal Expansion | 5.5x10 -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 | 7x107 ohm cm (350°C) |
| Dielectric Properties | (20°C and 1 MHz) |
| Constant | 3.75 |
| Strength | 5x107 V/m |
| Loss Factor | Less than 4x10-4 |
| Dissipation Factor | Less than 1x10-4 |
| Index of Refraction | 1.4585 |
| Constringence (Nu) | 67.56 |
| Velocity of Sound-Shear Wave | 3.75x103 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 | 210x10-10 |
| Hydrogen | 21x10-10 |
| Deuterium | 17x10-10 |
| Neon | 9.5x10-10 |
Due to the corrosion resistant, high working tempertaure, low themal expression, sight glass is widely used to observe processes inside tanks, pipes, reactors, vessels.
Packing and shipping for HM Heat Resistant Transparent Crystal Glass Pipe for Smoking,
1. PE bubble cushion
2. Corrugated case
3. Wooden carton
4. Film warpping
5. The products would be shipped within 3-5 working days after 100% payment received by ship, air and express (DHL, UPS, EMS, FEDES & TNT)
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