| Purity: | >99.99% (typically high-purity SiO₂) |
| Thermal Properties | Softening Point: ~1730°C |
| Melting Point: ~2000°C | |
| Maximum Operating Temperature: ~1150(Long time use)/~1200°C (Short time use) | |
| Thermal Expansion Coefficient: ~5.5 × 10⁻⁷ /°C (very low) | |
| Thermal Conductivity: 1.3 W/m·K (at 20°C) | |
| Optical Properties | Refractive Index: 1.4585 (at 587 nm wavelength) |
| UV Transmittance: >80% (at 200 nm wavelength) | |
| Optical Transmission Range: 190-3500 nm | |
| Mechanical Properties | Density: 2.20 g/cm³ |
| Hardness: Mohs scale ~5.5-6.5 | |
| Young's Modulus: 70~75 GPa | |
| Poisson's Ratio: 0.17-0.19 | |
| Bending Strength: 60-80 MPa | |
| Chemical Resistance: | Acid Resistance: Excellent |
| Alkali Resistance: Good | |
| Hydrolytic Resistance: Class 1 (per ISO 719) |
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KS GLASS specializes in the production of high-quality glass products. With advanced technology and expertise, we offer solutions tailored to meet the diverse needs of our customers. Our products are known for their durability, precision, and reliability. We are committed to innovation and excellence in manufacturing, ensuring that every product meets industry standards while catering to specific client requirements.
