Property:
With very low expansion coefficient, high temperature resistance, good chemical stability, excellent insurability, low and stable ultrasonic delay, the best function of transmission of ultraviolet, visible light and near infrared light as well as the better mechanical properties than normal glass. Quartz glass is one of the best and indispensable raw materials used in space technology, atomic industry, national defense, automatic systems, and the industries of semiconductor, metallurgy, chemicals, lighting resources, building materials, and so on.
The OH contents: ≤50ppm, ≤10ppm, ≤5ppm, ≤1ppm
Applications:
In lighting and heating industries, it is widely applied for halogen lamp, mercury lamp, single-ended lamp, automobile lamp, stage lamp, thermocouple, printer lamp, sleeve for water treatment lamp, quartz utensils and pipes, etc.
Chemical Compositions
Al |
Ca |
Fe |
K |
Na |
Li |
Mg |
Pb |
B |
Ba |
Mn |
Zn |
20 |
2.1 |
1.2 |
3.4 |
3.4 |
0.6 |
0.4 |
0.01 |
0.3 |
0.2 |
0.4 |
0.2 |
Physics Properties
Purity |
99.999%Sio2 |
The Current Highest Temperature ºC |
900 |
Density 20ºCKg.m3(×103) |
2.2 |
Heat Expansion Coefficient Cm/CmºC |
5.5×10-7 |
Softening PointºC |
1550 |
Annealing PointºC |
1200 |
Strain Point ºC |
1100 |
Heat Exchange Index W(Cm. ºC)(0-650ºC) |
0.017 |
Dispute Pressure Intension Mpa |
640 |
Dispute Tension Intension Mpa |
60 |
Dispute Inflection Intension Mpa |
110 |
Rigidity Modulus Gpa |
32 |
Yang's Modulus Gpa |
74 |
Resistance Index Ω.cm |
1018 |
Electrical Pressure-Resistant kv/mm(a.t20ºC) |
16-43 |
Detailed Specifications and Technology Standards
Dimension Deviation |
OD (in mm) |
Grade I,II,III |
Wall Thickness
Deviation |
W.T (in mm) |
Tolerance |
(%) |
2.6≤φ<4.8 |
±0.3 |
(%) |
0.6-1.0 |
±18 |
|
6≤φ<13 |
±0.3 |
|
1.1-1.5 |
±14 |
|
13≤φ<30 |
±3.0 |
|
1.6-2.0 |
±12 |
|
30≤φ<60 |
±3.0 |
|
2.1-2.5 |
±12 |
|
80≤φ<100 |
±5.0 |
|
2.6-3.0 |
±12 |
|
100≤φ<120 |
±5.0 |
|
4.6-5.6 |
±24 |
Ellipticity |
Not over the absolute
value of OD deviation |
3-5% |
Deflection
of Wall |
Not over the absolute
value of wall thickness
deviation |
0.50% |
Air line Length
Air line Width |
6≤φ<12 |
No limitation |
Transparent quartz glass tubes
are divided into Grade I, II and III
according to the length of air lines
and air bubbles. |
|
13≤φ<26 |
|
|
Angularity |
Not over the tube length |
3% |
Length |
Deviation |
±1 |
Jinan Honhai Glass Company Limited started to manufacture borosilicate 3.3 colored and clear glass tubing and its related glassware products from 1998. We are one of the leading suppliers of borosilicate glass in China. Particularly, we've successfully developed flat borosilicate 3.3 floated glass sheet and glass ceramic, which enjoys a good reputation in the United States and Europe. Also, we are playing an important role in pharmaceutical package glass and products in the market.
Our factory is equipped with advanced machinery with production know-how, strict and complete quality management and supervision system as well as friendly customer service. Holding a business principle of "honesty, cooperation, win-win", we concentrate on continuous quality improvement and upgrade. We take it as our responsibility to satisfy customers' requirements, and innovate market demand.
We well know borosilicate glass and respect customers' requests. We will improve, upgrade and innovate products all the time.
