Glass Sleeves for Low Temperature Sealing
Glass tubes with excellent sealability
LG-16 has long been used in encapsulation of thermistors. NLT-600 is Pb-free glass and environment friendly. The acid resistance level of NLT-600 is equivalent to that of Pb glass and LG-16. We can supply not only round type glass tubes but also square type glass tubes. Square glass tubes can be mounted securely without shifting or falling.
Features
Properties
| Properties/Glass code | LG-16 | NLT-600 (Pb-free) | ||
|---|---|---|---|---|
| Coefficient of thermal expansion | 30～380℃ | ×10-7/K | 91 | 85 |
| Density | ×103kg/m3 | 4.31 | 3.09 | |
| Strain point | ℃ | 390 | 567 | |
| Annealing point | ℃ | 430 | 603 | |
| Softening point | ℃ | 575 | 747 | |
| Sealing temperature | ℃ | 655 | 817 | |
| Working temperature | ℃ | 820 | 947 | |
| Volume resistivity Logρ | 150℃ | Ω･cm | 14.8 | 18.0 |
| 250℃ | Ω･cm | 11.7 | 14.0 | |
| Dielectric constant | 1MHz, 25℃ | 9.5 | 7.5 | |
| tanδ | 1MHz, 25℃ | ×10-4 | 8 | 7 |
| Refractive index (nd) | 1.69 | 1.57 | ||
| Color | Clear | Clear | ||
| Glass type | PbO･K2O･SiO2 | BaO･K2O･B2O3･SiO2 | ||
Viscosity
Thermal Expansion
* The figures on the chart are standard values,
therefore the properties are not guaranteed.
Standard Dimensions
(mm)
| Glass code | Outer diameter | Inner diameter | Length |
|---|---|---|---|
| LG-16 | 0.55±0.05 | 0.45±0.05 | 1.50±0.05 |
| 0.85±0.05 | 0.70±0.05 | 1.50±0.05 | |
| 1.35±0.05 | 1.05±0.05 | 3.00±0.05 | |
| 1.78±0.05 | 0.86±0.05 | 3.81±0.05 | |
| 2.10±0.05 | 1.30±0.05 | 5.00±0.05 | |
| NLT-600 | 1.35±0.05 | 1.05±0.05 | 3.00±0.05 |
| 2.15±0.05 | 1.35±0.05 | 4.00±0.05 |
