WT Glass provide high quality colored borosilicate glass tubes with various sizes and colors, such as pink, yellow, amber, blue, green, white, black, opal, milky etc.
| Material | Borosilicate Glass |
|---|---|
| Outer diameter | 4mm to 315mm |
| Thickness | 0.8 to 12mm |
| Length | 9.5mm to 1500mm; Glass can be cut to any desired length needed |
| Edge | canbe with open or closed bottom, Grind or Polish |
Borosilicate colored glass tubes offer exceptional durability, making them ideal for high-performance applications where both strength and aesthetics matter. Made with boron trioxide, these tubes withstand extreme temperatures and resist thermal shock, ensuring they hold up under rapid heating and cooling. The colored variety brings vibrant shades without compromising quality, ideal for artistic glassblowing, laboratory use, and lighting applications. Their excellent chemical resistance adds another layer of versatility, making borosilicate colored glass tubes a popular choice in industries demanding both beauty and resilience. From intricate designs to practical applications, these tubes elevate functionality with a touch of color.
Size: OD4mm to 315mm; Thickness 0.8 to 12mm; Length 9.5mm to 1500mm
Most popular sizes are: OD12*T2mm; OD18*T2mm; OD22*T2mm; OD25*T4mm; OD28*T4mm; OD32*T4mm; OD38*T4mm; OD51*T4.8mm.
Colors: transparent or translucent
most popular colors are purple, pink, yellow, green, light blue, dark blue, amber, teal, milky green, milky pink, milky violet, opaque white, opaque black.
Edge finishing: fire polished edge; grind edge; polished edge;
Surface finishing: sandblasting; printing.
| Chemical Performance | |||||
| 1 | SiO2 | B2O3 | Na2O | Al2O3 | Fe2O3 |
| 80.3% | 13.04% | 4.17% | 2.44% | 0.027% | |
| 2 | Water resistance | ISO0719 I | |||
| 3 | Acid resistance | ISO0195 I | |||
| 4 | Alkali resistance | ISO0695 II | |||
| Mechanical Performance | |||||
| 5 | Density ρ | 2.2250g/cm3 @24℃ | |||
| 6 | Bending Strength | 150N/mm2 | |||
| 7 | Surface compressive stress | 90N/mm2 | |||
| 8 | Young’s modulus | 64 GPa | |||
| 9 | Poisson’s ratio | 0.2 | |||
| 10 | Hardness | 5.5 Mohs, (470 Knopp, 580 Vickers) | |||
| 11 | Elastic Modulus | 67KNmm-2 | |||
| Thermodynamic Performance | |||||
| 12 | Thermal Expansion Coefficient (0-300℃）(20-300) | ≤3.3*10-6K-1 | |||
| 13 | Softening Point | 820±10℃ | |||
| 14 | Strain Point | 520±10℃ | |||
| 15 | Annealing Point | 560±10℃ | |||
| 16 | Caloricity (20-100℃) | 0.83KJ* (kgxK)-1 | |||
| 17 | Thermal Coefficient | 1.2WxmxK-1 | |||
| 18 | Thermal Shock Resistance | 180K | |||
| 19 | Max Working Temperature | -70 up to 500℃ Short time (＜10h） | |||
| 20 | Max Working Temperature | -70 up to 280℃ Long time (＞10h） | |||
| Eletric Property | |||||
| 21 | Electric Volume Resistivity | 8.6×1013Ωxcm (at 25℃） 1.4×106Ωxcm (at 300℃） 1.4×10 6Ωxcm (at 300℃） | |||
| 22 | Dielectric Dissipation Fraction | 38×10-4 (at 1MHz, 20℃） | |||
| 23 | Dielectric Constant εr | 4.6 (at 1MHz, 20℃） | |||
| Optical Property | |||||
| 24 | Refractive Index | 1.4714 @24℃ | |||
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