Quartz Glass Tube — High-Purity Fused Quartz / Fused Silica Tubes

Description

Quartz Glass Tube (fused quartz / fused silica) from Lumistar offers exceptional thermal stability, superior chemical resistance and broad UV–IR transmission for demanding furnace, semiconductor and optical applications. Available in standard and custom sizes (OD X ID X L), with options for thick-wall, fire-polished ends and one-end sealed. Datasheets and fast quotes available — contact us to request samples or a custom quote.

Key benefits


  • High purity (SiO₂ ≥ 99.9%) — minimal contamination risk for sensitive processes.
  • Operating temperature up to ~1,050–1,200°C (application dependent).
  • Excellent UV–IR transmission — ideal for lamps and optical systems.
  • Low coefficient of thermal expansion — superior thermal shock resistance.
  • Custom sizes, tight tolerances, one-end closed & fire-polished finishing available.
  • Datasheets, CAD and sample requests supported — quick lead times for most sizes.
    Technical Specifications

 

Typical Technical Specifications


Item specifications
Fused Quartz / Fused Silica — typical production ranges
SiO₂ ≥ 99.9%

Material Fused Quartz / Fused Silica (SiO₂ ≥ 99.9%)
Shape
Cylindrical


Square hole type
Outer Diameter (OD) 5 mm — 800 mm

(custom sizes available)
Length 10 mm — 3000 mm

(custom lengths available)
Wall thickness 1 mm — 20 mm

(depends on application/custom available)
Max continuous temperature ~1050 °C — 1200 °C

(grade & thickness dependent)
Coefficient of thermal expansion ≈ 5.5 × 10−7 /°C
Pressure resistance FV / +2.5 MPa
End finish Cut / Fire-polished / One-end closed / Custom
Tolerance Typical ±0.1 mm
Packaging Custom packaging for shipping; foam & wooden crates for large sizes

Notes
Values and ranges are typical. For bespoke tolerances, certifications, or packing photos, please request a quotation with your required specs.

Applications


  1. Semiconductor & Thin Film — Process tubes for CVD, diffusion & thermal processing where high purity and thermal stability are required.
  2. High-Temperature Furnaces — Reliable tubes for furnace use, high softening point and low devitrification characteristics.
  3. UV Lamps & Optical Systems — Excellent UV transmission supports germicidal lamps, ozone generators and optical assemblies.
  4. Laboratory & Analytical — Chemical resistance and clean-room compatible grades for lab apparatus and analytical workflows.

Why buy from us


  • Certified high purity: material traceability and chemical analysis available on request.
  • Tailored fabrication: flanges, ports, vacuum sealing and precision polishing.
  • Datasheets & test reports: temperature ratings, OH content and optical transmission curves included.
  • Fast quotes for custom sizes: upload a drawing and receive an engineered quote within business hours.

Datasheet & Downloads

Frequently Asked Questions


What is the minimum order quantity (MOQ)?
MOQ varies by size and finish. Many standard sizes are available with low MOQs; custom sizes may have higher MOQs. Contact sales for details.
Can you provide cut-to-length or finished assemblies?
Yes. We offer cut-to-length, fire-polished ends, one-end sealed tubes and assemblies. Provide drawings for pricing.
Do you support OEM/contract manufacturing?
Yes — we work with OEMs for production quantities and technical validation. Please request an NDA if required.
How quickly can you deliver?
Typical lead times depend on size, finish and order quantity. Standard sizes often ship within 2–4 weeks; custom orders depend on tooling and volume.

 

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