Yantai ZK Optics Co., Ltd.
Custom fabrication of high precision glass parts. Spirit of enterprise: Integrity, Pragmatism, Innovation, Win-win, Appreciation. Tenet of enterprise: the Supremacy of Customer, the Excellence in
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| Material | COE 3.3 borosilicate glass | |
| Main Composition | SiO2 | 80±0.5% |
| B2O3 | 2.4±0.2% | |
| Na2O+K2O | 4.3±0.2% | |
|
Chemical and Physical property | Coefficient of thermal expansion(20°C/300°C) | 3.3±0.1(10–6K–1) |
| Softening point | 820±10°C | |
| Melting point | 1260±20°C | |
| heat resistance temperature | 525±15°C | |
| Hydrolytic resistance at 98°C | ISO719-HGB1 | |
| Hydrolytic resistance at 121°C | ISO720-HGA1 | |
| Density at 20°C | 2.23g/cm3 | |
| Acid resistance | ISO1776-1 | |
| Alkali resistance | ISO695-A2 | |
Stock size
| φ6*φ0.5*6 (±0.02) |
| φ6*φ0.8*6(±0.02) |
| φ6*φ1.13*6(±0.02) |
| φ6*φ1.45*6(±0.02) |
| φ6*φ1.0*6(±0.02) |
| φ6*φ1.08*6(±0.02) |
| φ6*φ1.20*6(±0.02) |
| φ6*φ1.52*6(±0.02) |
| φ6*φ2.3*6(±0.02) |
| φ6*φ0.77*6(±0.02) |
| φ6*φ0.9*6(±0.02) |
| φ6*φ0.95*6(±0.02) |
| φ6*φ1.91*6(±0.02) |
| φ6*φ1.25*6(±0.02) |
| φ6*φ1.3*6(±0.02) |
| φ6*φ1.48*6(±0.02) |
| φ6*φ0.92*6(±0.02) |
