Both tube and rod are available for this soda lime glass. There is a wide range of dimensions, it is a economical choice in many different applications with the property of high transmission, high thermal expansion and high chemical resistance.
Application:
Laboratory: | Test tube, glass dropper, measuring cylinder, blown and pressed laboratory glassware |
Lighting | Neon tube, lamp bulb, exhaust and flare tube, stem tube |
Pharmaceutical Packaging | Bottle, vial |
Home | Straw, Christmas ball, cosmetics, cup |
Technical Data
Chemical Composition(components in approx. weight %):
No. | Composition | Wt.% | Tolerance |
1 | SiO2 | 71.2 | +/-1.0 |
2 | B2O3 | 1.2 | +/-0.2 |
3 | Al2O3 | 2.8 | +/-0.2 |
4 | Na2O | 15.2 | +/-0.5 |
5 | K2O | 1.2 | +/-0.2 |
6 | CaO | 5.0 | +/-0.4 |
7 | MgO | 3.0 | +/-0.3 |
Physical Data:
1 | Coefficient of mean linear thermal expansion (20ºC~380ºC) | 9.1 | 10-6K-1 |
2 | Softening point | 685 | ºC |
3 | Density | 2.5 | g/cm3 |


