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) |