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The glass tube includes normal soda-lime glass tube, borosilicate glass tube, high borosilicate glass tube, neutral borosilicate glass tube.
We can supply:
Including refractory materials, automatic control system instrument and equipment, mechanical equipment for furnace.
Technological Features
SiO2 Content | >80% |
Strain Point | 520℃ |
Annealing Point | 560℃ |
Softening Point | 820℃ |
Refractive Index | 1.47 |
Light Transnission(2mm) | 0.92 |
Elastic Modulus | 67KNmm-2 |
Tensile Strength | 40-120Nmm2 |
Glass Stress Optical Coefficient | 3.8*106m2/N |
Processing Temperature (104dpas) | 1220℃ |
Linear Coefficient of Expansion(20-300℃) | 3.3*10-6K-1 |
Density(20℃) | 2.23gcm-1 |
Specific Heat | 0.9jg-1K-1 |
Thermal Conductivity | 1.2Wm-1K-1 |