capillary quartz tube
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capillary quartz tube

The capillary quartz tube is manufactured from high-purity fused silica and designed for applications requiring extremely small inner diameters and tight tolerances. It offers excellent thermal stability, UV transparency, and chemical resistance.
We support custom OD/ID, length, wall thickness, and precision cutting. These tubes are commonly used in laboratories, optical fiber systems, chromatography equipment, microfluidic devices, and high-temperature analytical instruments.

we can customized all kinds of quartz glass product service
according to your
request/sample/drawing

BrandLianyungang Tuguan Quartz
Production NameCapillary Quartz Tube
Material99.99% Pure Quartz
Thickness0.2-100mm
Processing ServiceBending, Welding, Punching, Cutting, Moulding
Colortransparent
Sizecustomized
Surface Quality60/40
ApplicationOptical/Semi/Industry
Density2.2×103 kg/m3Hardness5.5 – 6.5 Mohs’ Scale 570 KHN 100
Design Tensile Strength4.8×107 Pa (N/m2) (7000 psi)Design Compressive StrengthGreater than 1.1 x l09 Pa (160,000 psi)SMD 5730
Bulk Modulus3.7×1010 Pa (5.3×106 psi)Rigidity Modulus3.1×1010 Pa (4.5×106 psi)
Softening Point1730°CAnnealing Point1215°C
  1. SiO2> 99.99% ,high purity quartz tube.
  2. Operating Temperature: 1250℃ SoftenTemperature: 1730℃.
  3. Excellent visual and chemical performance .
  4. without surface coating and infectant.
  5. Health care and environmental protection
  6. Any dimension can be made.
  7. CE.RoHs SGS approved.

Frequently asked questions

They are used in analytical instruments, chromatography, microfluidics, optical fiber systems, laboratory sampling, and precision liquid transport applications.

Yes. We provide precision cutting, polishing, beveling, and end-face finishing to meet specific experimental or equipment requirements.

Yes. Their high precision, smooth inner surfaces, and chemical stability make them suitable for microfluidics and other low-flow analytical applications.

We can produce extremely small IDs, depending on the specification—ranging from sub-millimeter to several millimeters. Custom tolerances are available upon request.

Yes. Fused silica provides excellent UV transmission (down to 190 nm) and high thermal resistance, suitable for continuous use up to 1050°C.

Please provide OD, ID, length, tolerances, quantity, and any processing requirements. Drawings or clear photos help ensure accurate pricing.

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