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Polished Sapphire Tube Single Crystal Al₂O₃ Tubular Optical Component

Sapphire thermocouple protection tube
August 07, 2025
Category Connection: Sapphire Parts
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Sapphire polished tubes are transparent tubular optical components fabricated from high-purity single-crystal aluminum oxide (α-Al₂O₃) through precision cold working and double-sided polishing. Their core advantage lies in combining sapphire's inherent material properties with advanced machining techniques to meet extreme environmental demands for optical, mechanical, and chemical performance.
Tags:
#sapphire tube #sapphire bearings #sapphire windows
Brief: Discover the Polished Sapphire Tube Single Crystal Al₂O₃ Tubular Optical Component, a high-performance solution for extreme environments. Combining ultra-high hardness, broad-spectrum transmission, and exceptional durability, these tubes are ideal for semiconductor, medical, and aerospace applications. Custom sizes and rapid delivery available.
Related Product Features:
  • Ultra-high hardness with Mohs 9 rating, 5x more scratch-resistant than quartz.
  • Broad-spectrum transmission from 200 nm (UV) to 5.5 μm (mid-IR) with >92% visible light transmittance.
  • Extreme durability: withstands temperatures up to 1900°C and strong acids/alkalis.
  • Precision machining with surface roughness Ra <0.5 nm and concentricity error <0.02 mm.
  • Customizable sizes: outer diameter 2-300 mm, inner diameter 0.1-25 mm, length 5-320 mm.
  • Multi-material integration options including tungsten-copper encapsulation and multi-layer coatings.
  • Rapid delivery: 2-4 weeks from design to mass production, with emergency orders in 7 days.
  • Versatile applications in semiconductor, medical, industrial, and aerospace sectors.
Faqs:
  • What are the key advantages of sapphire polished tubes?
    Sapphire polished tubes offer extreme hardness (Mohs 9), 1900°C high-temperature resistance, and excellent chemical stability, making them ideal for harsh environments like semiconductor manufacturing and aerospace.
  • Where are sapphire polished tubes commonly used?
    They are critical in semiconductor processing (etching chambers), medical endoscopes, and industrial laser systems due to their transparency and durability.
  • What customization options are available for sapphire polished tubes?
    Custom sizes (outer diameter 2-300 mm, inner diameter 0.1-25 mm, length 5-320 mm), complex structures (steps, drilled holes), and multi-layer coatings (AR/HR/anti-fog) are available.
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