1-6mm OD Quartz Capillary Tube, 100mm Length - High Purity Fused Silica for Fiber Optics & Lab

Product Description Our quartz capillary tubes are manufactured from 99.99%–99.999% high-purity fused silica, delivering exceptional thermal stability, high optical transmittance, and broad chemical resistance. This range covers 1mm to 6mm outer diameter with a 100mm standard length. These precision hollow tubes are widely used in fiber optic communications, optical sensing, laser systems, laboratory analysis, and semiconductor manufacturing. Key Features OD options: 1 / 1.5 / 2 / 2.5 / 3 / 4 / 5 / 6mm — ID and overall length are fully customizable Temperature range: -198°C to 1200°C, with excellent thermal shock resistance Optical performance: High transmittance and low dielectric loss for photonics applications Chemical durability: Resistant to most acids and reagents; outstanding electrical insulation Mechanical strength: High hardness and dimensional stability, supports precision end-finishing Customization Options We offer tailored solutions for outer diameter, wall thickness, overall length, and end finishes — including polished flat ends, sealed ends, and fire-polished rounded ends. All orders are shipped with shockproof packaging to ensure safe delivery worldwide.