Quartz square tube
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Quartz square tube

Quartz square tubes are made from high-purity fused silica and feature excellent thermal stability, optical clarity, and chemical resistance. The square shape provides structural advantages for optical components, flow channels, laboratory systems, and devices requiring directional alignment or flat-surface interfaces.
We provide full customization of dimensions including OD, ID, wall thickness, length, edge finishing, and CNC machining. These tubes are suitable for optical instruments, microfluidics, thermal systems, and high-temperature laboratory applications.

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

BrandLianyungang Tuguan Quartz
Production NameQuartz Square 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 optical instruments, laboratory devices, microfluidic channels, structural fixtures, and industrial equipment requiring precise square cross-sections.

Yes. They can withstand continuous temperatures up to 1050°C and short-term peaks around 1200°C, suitable for high-temperature environments.

Yes. Fused silica provides high UV transmission and excellent optical stability, making square tubes suitable for photonics and analytical systems.

We can customize outer width, inner width, wall thickness, and length according to drawings or project requirements. Tolerances can be adjusted based on usage.

Yes. We offer cutting, grinding, fire polishing, beveling, drilling, and CNC machining to meet specific installation or optical requirements.

Please provide outer dimension, inner dimension, wall thickness, length, tolerances, machining needs, and quantity. Drawings or photos help confirm details.

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