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- Contact Person : Mr. Gao Xing
- Company Name : Taixing Zhicheng Glass Co., Ltd.
- Tel : 86-0523-87983393
- Fax : 86-0523-87984988
- Address : Jiangsu,Taizhou,East of Cailian Bridge Taichang Road Qiwei Town
- Country/Region : China
- Zip : 225400
high borosilicate glass tube for lighting
Product Detailed
Related Categories:Glass
Related Product Searches:high borosilicate glass tube for lighting,High Quality explosion proof glass lighting tube,explosion proof glass lighting tube 60mm 70mm
high borosilicate glass tube for lighting
1. made of high borosilicate glass
2.explosion proof
3.great transparance
Related Product Searches:high borosilicate glass tube for lighting,High Quality explosion proof glass lighting tube,explosion proof glass lighting tube 60mm 70mm
high borosilicate glass tube for lighting
1. made of high borosilicate glass
2.explosion proof
| Chemical Compositions and Physical and Chemical Properties of Borosilicate Glass Type 3.3 | |||||
| composition | SiO2 | B2O3 | R2O | Al2O3 | Fe2O3 |
| weight% | 80.3 | 13.0 | 4.2 | 2.4 | 0.035 |
| Physics performance | Numerical Value | Unit | |||
| Medium coefficient if linear expansion | 3.3±0.1 | 10-6K-1 | |||
| Softening point | 820±10 | °C | |||
| Viscosity temperature | 510±10 | °C | |||
| Uper annealing temperature | 560±10 | °C | |||
| Thermal conductivity(20-100°C) | 1.2 | Wm-1K-1 | |||
| Temperature for the specific electrical resistance | 240 | °C | |||
| 20°C Demsity ρ | 2.23±0.02 | g/cm3 | |||
| Endure water under 98 °C | ISO0719-HGB1 | / | |||
| Endure water under 121 °C | ISO0720-HGA1 | / | |||
| Acid-proof test | Na2O≤100 | µg | |||
| Alkali-proof test | ISO0695 | / | |||
3.great transparance