Clear Borosilicate Glass Tubing
Main Composition:
SiO2: 81%
B2O3: 13%
Na2O/K2O: 4%
Al2O3:2%
Physical Data | |||
No. | Physical performance | Numerical Value | Unit |
1 | Coefficient of mean linear thermal expansion(20℃,300℃) | 3.3±0.1 | 10-6K-1 |
2 | Transformation temperature | 525±15 | ℃ |
3 | Softening point | 820±10 | ℃ |
4 | Working point | 1260±20 | ℃ |
5 | Density at 20℃ | 2.23±0.02 | g/cm3 |
6 | Mean thermal conductivity(20℃-100℃) | 1.2 | w/m2k |
7 | Refractive index | 0.92 | 1 |
Fast delivery + Competitive price
High transparency, High temperature resistance, Mechanical capacity, Low COE 3.3 and lead free.
We have an excellent production team. We could produce according to your requests.
Glass Tubing Size:
OD | Wall Thickness | Wall Thickness | Wall Thickness | Wall Thickness | Wall Thickness | OD | Wall Thickness | Wall Thickness | Wall Thickness | Wall Thickness | Wall Thickness | |
*4±0.4 | 0.5±0.1 | 0.8±0.1 | 80±1.8 | 1.8±0.2 | 2.5±0.3 | 3.5±0.4 | 5±0.6 | 6.3±0.6 | ||||
*5±0.4 | 0.5±0.1 | 0.8±0.1 | 82±1.8 | 1.8±0.2 | 2.5±0.3 | 3.5±0.4 | 5±0.6 | 6.3±0.6 | ||||
6±0.4 | 0.5±0.1 | 1±0.1 | 1.5±0.2 | 2±0.2 | 84±1.8 | 1.8±0.2 | 2.5±0.3 | 3.5±0.4 | 5±0.6 | 6.3±0.6 | ||
7±0.4 | 0.5±0.1 | 1±0.1 | 1.5±0.2 | 2±0.2 | 86±1.8 | 1.8±0.3 | 2.5±0.3 | 3.5±0.4 | 5±0.6 | 6.3±0.6 | ||
8±0.4 | 0.6±0.1 | 1±0.1 | 1.5±0.2 | 2±0.2 | 88±1.8 | 1.8±0.3 | 2.5±0.3 | 3.5±0.4 | 5±0.6 | 6.3±0.6 | ||
9±0.4 | 0.6±0.1 | 1±0.1 | 1.5±0.2 | 2±0.2 | 90±1.8 | 1.8±0.3 | 2.5±0.3 | 3.5±0.4 | 5±0.6 | 6.3±0.6 | ||
10±0.4 | 0.6±0.1 | 1±0.1 | 1.5±0.2 | 2±0.2 | 2.5±0.3 | 92±1.8 | 1.8±0.3 | 2.5±0.3 | 3.5±0.4 | 5±0.6 | 6.3±0.6 | |
11±0.4 | 0.6±0.1 | 1±0.1 | 1.5±0.2 | 2±0.2 | 2.5±0.3 | 94±1.8 | 1.8±0.3 | 2.5±0.3 | 3.5±0.4 | 5±0.6 | 6.3±0.6 | |
12±0.4 | 0.6±0.1 | 1±0.1 | 1.5±0.2 | 2±0.2 | 2.5±0.3 | 96±1.8 | 1.8±0.3 | 2.5±0.3 | 3.5±0.4 | 5±0.6 | 6.3±0.6 | |
13±0.4 | 0.6±0.1 | 1±0.1 | 1.5±0.2 | 2±0.2 | 2.5±0.3 | 98±1.8 | 1.8±0.3 | 2.5±0.3 | 3.5±0.4 | 5±0.6 | 6.3±0.6 | |
14±0.4 | 0.6±0.1 | 1±0.1 | 1.5±0.2 | 2±0.2 | 2.5±0.3 | 100±1.8 | 1.8±0.3 | 2.5±0.3 | 3.5±0.4 | 5±0.6 | 6.3±0.6 | |
15±0.4 | 0.6±0.1 | 1±0.1 | 1.5±0.2 | 2±0.2 | 2.5±0.3 | 105±1.8 | 2.5±0.3 | 3±0.4 | 3.5±0.4 | 7±0.8 | 8.5±0.8 | |
16±0.4 | 0.7±0.1 | 1.2±0.2 | 1.8±0.2 | 2.4±0.2 | 3±0.3 | 110±2.0 | 2.5±0.3 | 3±0.5 | 5±0.7 | 7±0.8 | 8.5±0.8 | |
17±0.4 | 0.7±0.1 | 1.2±0.2 | 1.8±0.2 | 2.4±0.2 | 3±0.3 | 115±2.0 | 2.5±0.3 | 3±0.5 | 5±0.7 | 7±0.8 | 8.5±0.8 | |
18±0.4 | 0.7±0.1 | 1.2±0.2 | 1.8±0.2 | 2.4±0.2 | 3±0.3 | 120±2.0 | 2.5±0.3 | 3±0.5 | 5±0.7 | 7±0.8 | 8.5±0.8 | |
19±0.4 | 0.7±0.1 | 1.2±0.2 | 1.8±0.2 | 2.4±0.2 | 3±0.3 | 125±2.0 | 3±0.6 | 5±0.7 | 7±0.9 | 8.5±0.8 | ||
20±0.5 | 0.8±0.1 | 1.2±0.2 | 1.8±0.2 | 2.4±0.2 | 3±0.3 | 130±2.0 | 3±0.6 | 5±0.7 | 7±0.9 | 9±0.9 | ||
21±0.5 | 0.8±0.1 | 1.2±0.2 | 1.8±0.3 | 2.4±0.3 | 3±0.3 | 135±2.0 | 3±0.6 | 5±0.7 | 7±0.9 | 9±0.9 | ||
22±0.5 | 0.8±0.1 | 1.2±0.2 | 1.8±0.4 | 2.4±0.3 | 3±0.3 | 140±2.0 | 3±0.6 | 5±0.7 | 7±0.9 | 9±0.9 | ||
23±0.5 | 0.8±0.1 | 1.2±0.2 | 1.8±0.5 | 2.4±0.3 | 3±0.3 | 145±2.0 | 3±0.6 | 5±0.7 | 7±0.9 | 9±0.9 | ||
24±0.5 | 0.8±0.1 | 1.2±0.2 | 1.8±0.6 | 2.4±0.3 | 3±0.3 | 150±2.0 | 3±0.6 | 5±0.7 | 7±0.9 | 9±1.0 | ||
25±0.5 | 0.8±0.1 | 1.2±0.2 | 1.8±0.7 | 2.4±0.3 | 3±0.3 | 155±2.8 | 5±0.7 | 7±0.9 | 9±1.0 | |||
26±0.5 | 0.9±0.1 | 1.4±0.2 | 2±0.2 | 2.6±0.3 | 3.2±0.3 | 160±2.5 | 5±0.8 | 7±1.0 | 9±1.0 | |||
27±0.5 | 0.9±0.1 | 1.4±0.2 | 2±0.2 | 2.6±0.3 | 3.2±0.3 | 165±2.5 | 5±0.8 | 7±1.0 | 9±1.0 | |||
28±0.5 | 0.9±0.1 | 1.4±0.2 | 2±0.2 | 2.6±0.3 | 3.2±0.3 | 170±2.8 | 5±0.8 | 7±1.0 | 9±1.1 | |||
29±0.5 | 0.9±0.1 | 1.4±0.2 | 2±0.2 | 2.6±0.3 | 3.2±0.3 | 175±2.5 | 5±0.8 | 7±1.0 | 9±1.1 | |||
30±0.8 | 1.0±0.2 | 1.4±0.2 | 2±0.2 | 2.6±0.3 | 3.2±0.3 | 180±2.5 | 5±0.8 | 7±1.0 | 9±1.2 | |||
32±0.8 | 1.0±0.2 | 1.4±0.2 | 2±0.2 | 2.6±0.3 | 3.2±0.3 | 185±3.0 | 5±0.9 | 7±1.0 | 9±1.2 | |||
34±0.8 | 1.0±0.2 | 1.4±0.2 | 2±0.2 | 2.6±0.3 | 3.5±0.3 | 190±3.0 | 5±0.9 | 7±1.0 | 9±1.2 | |||
36±0.8 | 1.0±0.2 | 1.4±0.2 | 2±0.2 | 2.8±0.3 | 3.5±0.3 | 195±3.0 | 5±1.0 | 7±1.0 | 9±1.2 | |||
38±0.8 | 1.0±0.2 | 1.4±0.2 | 2±0.2 | 2.8±0.3 | 3.5±0.3 | 200±3.0 | 5±1.0 | 7±1.1 | 9±1.3 | |||
40±1.0 | 1.2±0.2 | 1.6±0.2 | 2.3±0.2 | 3.0±0.3 | 3.5±0.4 | 205±3.0 | 5±1.0 | 7±1.1 | 9±1.3 | |||
42±1.0 | 1.0±0.2 | 1.6±0.2 | 2.3±0.2 | 3.0±0.3 | 3.5±0.4 | 210±3.0 | 5±1.0 | 7±1.1 | 9±1.3 | |||
44±1.0 | 1.2±0.2 | 1.6±0.2 | 2.5±0.3 | 3.0±0.3 | 3.5±0.4 | 215±3.0 | 5±1.0 | 7±1.1 | 9±1.3 | |||
46±1.0 | 1.2±0.2 | 1.6±0.2 | 2.5±0.3 | 3.2±0.3 | 3.8±0.4 | 220±3.0 | 5±1.0 | 7±1.1 | 9±1.3 | |||
48±1.0 | 1.2±0.2 | 1.6±0.2 | 2.5±0.3 | 3.2±0.3 | 3.8±0.4 | 225±3.0 | 5±1.0 | 7±1.1 | 9±1.3 | |||
50±1.0 | 1.4±0.2 | 1.8±0.2 | 2.5±0.3 | 3.5±0.3 | 3.8±0.4 | 230±3.0 | 5±1.0 | 7±1.1 | 9±1.3 | |||
52±1.0 | 1.4±0.2 | 1.8±0.2 | 2.5±0.3 | 3.5±0.3 | 4±0.4 | 235±3.0 | 5±1.0 | 7±1.1 | 9±1.3 | |||
54±1.0 | 1.4±0.2 | 1.8±0.2 | 2.5±0.3 | 3.5±0.3 | 4±0.4 | 240±3.0 | 5±1.0 | 7±1.1 | 9±1.3 | |||
56±1.0 | 1.4±0.2 | 1.8±0.2 | 2.5±0.3 | 3.5±0.3 | 4.2±0.4 | 245±3.0 | 5±1.0 | 7±1.1 | 9±1.3 | |||
58±1.0 | 1.4±0.2 | 1.8±0.2 | 2.5±0.3 | 3.5±0.3 | 4.2±0.4 | 250±3.0 | 5±1.0 | 7±1.1 | 9±1.3 | |||
60±1.5 | 1.6±0.2 | 2.2±0.3 | 3.2±0.4 | 4.2±0.5 | 4.2±0.4 | 255±3.0 | 5±1.0 | 7±1.1 | 9±1.4 | |||
62±1.5 | 1.6±0.2 | 2.2±0.3 | 3.2±0.4 | 4.2±0.5 | 4.5±0.5 | 260±3.0 | 5±1.0 | 7±1.1 | 9±1.4 | |||
64±1.5 | 1.6±0.2 | 2.2±0.3 | 3.2±0.4 | 4.2±0.5 | 4.5±0.5 | 265±3.0 | 5±1.0 | 7±1.1 | 9±1.4 | |||
66±1.5 | 1.6±0.2 | 2.2±0.3 | 3.2±0.4 | 4.2±0.5 | 5.3±0.5 | 270±3.0 | 5±1.0 | 7±1.1 | 9±1.4 | |||
68±1.5 | 1.6±0.2 | 2.2±0.3 | 3.2±0.4 | 4.2±0.5 | 5.3±0.5 | 275±3.0 | 5±1.0 | 7±1.1 | 9±1.4 | |||
70±1.5 | 1.6±0.2 | 2.2±0.3 | 3.2±0.4 | 4.2±0.5 | 5.3±0.5 | 280±3.0 | 5±1.0 | 7±1.1 | 9±1.4 | |||
72±1.5 | 1.6±0.2 | 2.2±0.3 | 3.2±0.4 | 4.2±0.5 | 5.3±0.5 | 285±3.0 | 5±1.0 | 7±1.1 | 9±1.4 | |||
74±1.5 | 1.6±0.2 | 2.2±0.3 | 3.2±0.4 | 4.2±0.5 | 5.3±0.5 | 290±3.0 | 5±1.0 | 7±1.2 | 9±1.4 | |||
76±1.5 | 1.6±0.2 | 2.2±0.3 | 3.2±0.4 | 4.2±0.5 | 5.3±0.5 | 295±3.0 | 5±1.0 | 7±1.2 | 9±1.4 | |||
78±1.6 | 1.6±0.2 | 2.2±0.3 | 3.2±0.4 | 4.2±0.5 | 5.3±0.5 | 300±3.0 | 5±1.0 | 7±1.2 | 9±1.4 |