| Color: | Transparent |
|---|---|
| Certification: | ISO9001 |
| Cup Accessories: | without Handle |
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Lead free glass tube is soft glass, which is availabe in custom dimensions. It is environmental, and easy to be processed, formed or sealed with other material, it is widely used in lamp lighting and electronic industry.
Production Description:| Product Name | Lead free glass tube |
| Diameter | Outside diameter from 2mm to 45mm |
| Feature | ease of processing |
| Processing | Cutting, fire polishing, sealing |
| Packing | Carton, pallet, wooden crate |
| No. | Composition | Wt.% | Tolerance |
| 1 | SiO2 | 67.6 | +/-1.0 |
| 2 | BaO | 8.9 | +/-0.5 |
| 3 | Na2O | 7.5 | +/-0.5 |
| 4 | K2O | 4.9 | +/-0.5 |
| 5 | Al2O3 | 3.4 | +/-0.4 |
| 6 | SrO | 3.0 | +/-0.4 |
| 7 | CaO | 1.9 | +/-0.3 |
| 1 | Coefficient of mean linear thermal expansion (20ºC~380ºC) | 9.1 | 10-6K-1 |
| 2 | Density | 2.62 | g/cm3 |
| 3 | Softening point | 675 | ºC |
| 4 | Stress point | 455 | ºC |
| 5 | Working temperature | 1020 | ºC |
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