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Quick Details

  • Place of Origin: Hunan, China (Mainland)
  • Type: Ceramic Parts, Insulator
  • Application: Industrial Ceramic, Industrial Ceramic High Voltage
  • Material: Alumina Ceramic
  • Model Number: XTL3876
  • Brand Name: Xing Tai Long
  • Shape: Round Pipe
  • Property: High Compressive Strength
  • Temperature: 1600-1700 C
  • Color: Ivory white
  • Density: 3.65 g/cm3
  • Thermal Conductivity (20 C): 23 W/m.k
  • Thermal Shock Resistance (20 C): 250 T(C
  • Volume Resistivity (25 C): 10^14

Packaging & Delivery

Packaging Details by wooden pallet packing or depend on customer's requirements
Product Description



Glazed/Mo/Mn/Metallized Ceramic Tubes with good quality

Major components

95% 96%.99  Al2O3





Material properties

Water absorption



Sintering temperature



Physical properties




Flexural strength



Compressive strength



Fracture toughness




Maximum temperature



Thermal properties

Coefficient of thermal expansion




Heat shock



Thermal conductivity


25 14






Volume resistivity




Electrical Characteristics




Insulation breakdown strength



dielectric constant




95%,96%,99%   Vacuum ceramic insulation Tube for  Gas Oven


Electric Vacuum Ceramic Tube with Metallization


Electric vacuum ceramic is the mainly components of high-voltage electric vacuum ceramic tube,high-power silicon controlled rectifier, electric vacuum relay, electric vacuum transmitting tube, High-frequency high power electric tube. We use the best 95% alumina with superfine powder technology and isostatic pressing : Steady performance, Good insulating.The sizes can be made strictly according to the customers' requirements , with Metallization and glazing on the surface.




1.Good density ,low dielectric loss and Dielectric Constant with small crystal size (Average diameter 8~10μm ). The structure density is far exceeded than the traditional forming technology through hundreds Mpa pressure


2. No air holes. There is no air holes in the ceramic parts through isostatic pressing technology. The inside structure and tensile strength reach the best condition


3. High mechanical strength, High sealing strength, Good air tightness, which highly improves the tightness of the electric vacuum ceramic tube


Joining types:

Ceramic + Mo/Mn Metallized + plating Ni

Ceramic + Mo/Mn Metallized + plating AG

Ceramic + Mo/Mn Metallized + plating Au

Ceramic + printing AG


Packaging & Shipping


Package of the ceramic insulator: Wooden case and wooden pallet, or pack as customer's requirement.

Delivery time of the ceramic insulator: depend on distance,  usually 20 days to 50days after deposit.

Company Information

Liling Xingtailong  is a modern enterprise management company, who devote themselves to the service of product research and development, construction and maintenance.


Our company has a long history. We own the advanced equipment, a young, energetic, proficient and experienced team of professionals which with leading technology strength, excellent operational management and high-quality services what made us be recognized by customers of the chemical, petroleum, electric power, metallurgy, building material, aerospace, machinery and other industries.




Our Services


Why choose Xingtailong?

High puriy material make sure high max working temperature,

Tight tolerance make sure the right installation.

Large quantity in stock ensured fast delivery.

Large capacity reduce materical prices.

Our service from Xingtailong:

Inquiry response: Your inquiries will be replied in 24 hours.

Sample support: Two free samples are available in 3~5days.

Delivery time: Your shipment will be loaded in 15~25days.depends on quantity.

Payment term: T/T, L/C, D/P, D/A, Western Union (Sample only) We can supply the products according to customer's drawings, samples and performance requirement.  





 Please follow the using specifications to expand the working lifetime and better 

the heat conductivity of metallized ceramic ring. 

A piece of instruction paper will be found in metallized ceramic ring,If manual book is

required, please notice in advance.


If any questions please feel free to let us know anytime.


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Trade Assurance
China (Mainland) | Manufacturer, Trading Company
Transaction Level:
Supplier Assessments:
20 Transactions 140,000+
The supplier’s transactions conduted via Alibaba.com in the past 6 months.
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $66,000
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