High Quality Customized Borosilicate Glass Tube Pipes For Bong
/Pipe/Bubbler Glass Tube
High borosilicate glass (also known as hard glass), is
characterized by the use of glass to conduct electricity at high
temperatures. The glass is melted by heating inside the glass and
processed by advanced production processes. The coefficient of
thermal expansion is(3.3士0.1)×10-6/K, also known as "borosilicate
glass 3.3". It is a special glass material with low expansion rate,
high temperature resistance, high strength, high hardness, high
light transmittance and high chemical stability. Due to its
excellent performance, it is widely used ini solar energy, chemical
industry, pharmaceutical packaging, electric light source, craft
jewelry and other industries.
| Borosilicate glass |
| Silicon Content | >80% |
| Coefficient of Thermal Expansion (20-300℃) | 3.3×10-6 /K |
| Density(20℃) | 2.23g/cm3 |
| Hot Work Temperature(104dpas) | 1220℃ |
| Annealing temperature | 560℃ |
| Softening temperature | 820℃ |
| Refractive Index | 1.47 |
| Thermal Conductivity | 1.2Wm-1 K -1 |
Rich experience in quartz glass industry
We have more than 25 years industry experience in quartz glass
processing. We specialize in quartz glass capillary tubes and rods,
quartz glass substrates, CNC machined quartz, and quartz
instruments etc. According to product application, we have good
grasp of material properties and adapt the proper material into
product application.
Strong technical force in processing and application
Beijing Zhong Cheng Quartz Glass Co., Ltd(ZCQ) is a high-tech
manufacturer specializing in the production and customization of
quartz glass products and optical glass products. We has excellent
technical strength, strong innovation ability and stable product
quality. Our processing method is rich, drawing of glass, cold and
thermal processing, micro size machining, high precision and
difficulty process, combination of multiple processing methods,
which guarantee that our product is excellent in all aspects.
Integrity and Quality Assurance
We are well known in quartz glass industry. Quality is the lifeline
of enterprise survival and development. Integrity is the source of
enterprise reputation, the foundation of standing and the
foundation of development. Through unremitting efforts and
continuous improvement, we have created a good manufacturing
platform of optical glass for customers.
