Polycrystalline Sapphire Tubes and Rods
We offer high quality, yet price competitive, polycrystalline sapphire tubes and rods that can work on aggressive environments and/or at high temperatures where standard ceramic or metal tubes fail to meet the material stability requirements.
- High Temperature resistance (up to 1800 °C)
- High purity (>99,98+% Al2O3)
- Chemically inert and corrosion resistant
- High pressure resistance
- Outstanding electrical insulating properties
- Low creep
- High thermal conductivity
- Pore free
Polycrystalline sapphire caps are applicable in aggressive environments and/or at high temperatures. Application areas are chemistry, oil refinery, glass industry and different laboratories, where standard ceramics or metal tubes do not meet the material stability requirements.
Our polycrystalline sapphire caps are competitive with other sapphire tubes and can substitute ceramic tubes that are not resistant against diffusion of chemicals. Therefore, durability of thermocouples protected by polycrystalline sapphire tubes is much higher than in the case of standard ceramics tubes.
Even protective tubes of small diameters are sufficiently strong and high temperature resistant. The polycrystalline sapphire caps for thermocouples are the economical choice in many applications.
A set can consist of an outer one-side sealed protective tube and one or more inner capillaries used for electrical insulation of branches of the thermocouple.
Tube Sizes Available
|Tube Sizing Range|
|OD (mm)||ID (mm)||Length (mm)|
|0.72 - 22.38||0.35 - 16.78||0 - 1000|
|List of Standard Tube Sizes|
*Different diameters and lengths are available upon request.
*Solid rods are also available upon request.
Email us using our Contact Us Form or call us at 520-514-1100 to further discuss the new possibilities brought by polycrystalline sapphire and how we can meet your custom need!
No minimum quantity requirement
$15.00 handling fee for orders less than $100.00 prior to shipping
Email email@example.com for custom products