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Sapphire Tubes Unpolished

Sapphire thermocouple protection tube
May 13, 2025
Category Connection: Sapphire Parts
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Tags:
#sapphire tube #sapphire bearings #sapphire windows
Brief: Discover the exceptional quality of Unpolished Sapphire Tubes manufactured using the KY or EFG method. These tubes, made from ultra-high purity alumina, offer unmatched hardness, thermal resistance, and chemical inertness. Ideal for semiconductor, optoelectronic, and industrial applications, they are available in custom sizes from Φ5mm to Φ150mm.
Related Product Features:
  • Exceptional hardness (Mohs 9) for superior wear resistance in high-friction environments.
  • Outstanding thermal resistance, withstanding temperatures up to 2050°C.
  • Superior chemical inertness, resistant to strong acids, alkalis, and plasma corrosion.
  • Maintains >80% light transmittance in the visible spectrum, even unpolished.
  • High mechanical strength with flexural strength >400MPa and compressive strength >2GPa.
  • Available in diameters from Φ5mm to Φ150mm with customizable wall thicknesses (0.5-20mm).
  • Manufactured using ultra-high purity alumina (Al₂O₃ ≥99.99%) for superior quality.
  • Ideal for semiconductor, optoelectronic, and industrial equipment applications.
Faqs:
  • What are the primary applications of sapphire tubes?
    Sapphire tubes are widely used in semiconductor manufacturing (e.g., plasma containment, thermocouple protection), medical devices (e.g., laser surgical tools), optical systems (e.g., UV/IR lamp envelopes), and high-pressure industrial equipment (e.g., chemical reactors) due to their extreme durability and transparency.
  • Why choose sapphire tubes over quartz or ceramics?
    Sapphire tubes outperform quartz and ceramics in high-temperature stability (up to 2000°C), chemical inertness (resists acids/alkalis), and mechanical strength, making them ideal for harsh environments like plasma processing and aerospace systems.
  • What customization options are available for sapphire tubes?
    Sapphire tubes can be customized in diameters ranging from Φ5mm to Φ150mm, with wall thicknesses from 0.5-20mm, to meet specific application requirements in semiconductor, optoelectronic, and industrial equipment sectors.
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