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View EFG Sapphire Tube (Unpolished Surface) Demo

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November 24, 2025
Category Connection: Sapphire Tube
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#sapphire lens #sapphire optics #sapphire parts
Brief: Join us for a close-up look at the EFG Sapphire Tube (Unpolished Surface) and see it in action. This video showcases the advanced EFG crystal growth process, highlighting its durability, chemical resistance, and thermal stability for demanding industrial applications.
Related Product Features:
  • High-purity single-crystal sapphire with 99.99% Al₂O₃ for exceptional durability.
  • Unpolished surface retains natural matte texture, ideal for structural and protective roles.
  • EFG growth process ensures long, uniform, and hollow sapphire structures with minimal waste.
  • Withstands temperatures over 1500°C in oxidizing environments and 2000°C in inert atmospheres.
  • Complete chemical inertness to acids, alkalis, and high-purity process gases.
  • Suitable for semiconductor equipment, high-temperature industrial processes, and corrosive fluid handling.
  • Customizable specifications including outer diameter, inner diameter, wall thickness, and length.
  • More economical compared to polished sapphire tubes with high structural integrity.
Faqs:
  • What is an EFG sapphire tube?
    An EFG sapphire tube is a hollow single-crystal aluminum oxide component manufactured using the Edge-Defined Film-Fed Growth method, offering excellent dimensional stability and uniform wall thickness.
  • What are the advantages of using sapphire instead of quartz or ceramics?
    Sapphire offers superior hardness, high-temperature resistance, chemical resistance, mechanical strength, and wear resistance, outperforming quartz and most technical ceramics in harsh environments.
  • Can the unpolished tube withstand high-temperature environments?
    Yes. Sapphire tubes can operate at over 1500°C in oxidizing atmosphere and up to 2000°C in inert/vacuum conditions, with excellent thermal shock resistance.
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