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Alumina Ceramic Thermocouple Protection Tubes , Alumina Ceramic Furnace Tube

Basic Information
Place of Origin: China
Brand Name: YUBEI
Certification: ISO9001
Minimum Order Quantity: 20pcs
Price: Negotiate
Packaging Details: carton or wooden case or pallet packing
Delivery Time: 30 work days
Supply Ability: 500pcs one month
Detail Information
Product Name: Thermocouple Protection Tubes Material: 99% Al2O3
Density: 3.85g/cm3 Thermal Conductivity: 29W/mK
Compressive Strength: 2400MPa Bending Strength: 310MPa
High Light:

Alumina Thermocouple Protection Tubes


Ceramic Thermocouple Protection Tubes


Alumina Ceramic Furnace Tube

Product Description

Furnace Fittings Thermocouple Protect Tube High Temperature Ceramics


    Alumina ceramic furnace tube is widely used in high temperature tubular furnace, operating temperature up to 1600℃, the conventional diameter of 60mm-120mm. Corundum furnace tube is an important ceramic part of tubular furnace. Installed in the middle of the furnace. Both ends are sealed with metal flange. Put the material into the crucible and into the furnace tube.




Material 99% AL2O3
Size Customized
Delivery time 5-30 days accordingly
FOB port Shanghai port
Packing wooden case


Characteristics of alumina ceramics:


  • Good strength and hardness
  • Good wear resistance
  • Good corrosion resistance
  • High temperature resistance
  • Good thermal stability
  • Excellent dielectric properties
  • Low loss tangent


Technical data:


Properties Item Unit 99% Alumina 95% Alumina
Mechanical Property Color -- Light Yellow White
Mechanical Property Density g/cm3 3.85 3.6
Mechanical Property Bending Strength MPa 310 300
Mechanical Property Compressive Strength MPa 2400 2300
Mechanical Property Elastic Modulus GPa 340 320
Mechanical Property Fracture Toughness MPam1/2 3-4 3-4
Mechanical Property Weber Coefficient m 12 12
Mechanical Property Vickers Hardness HV0.5 1600 1400
Thermal Property Coefficient of Line Thermal Expansion 10-6K-1 7-8 7-8
Thermal Property Thermal Conductivity W/mK 29 20
Thermal Property Thermal Shock Resistance( in water) ΔT℃ 200 250
Thermal Property Max Working Temperature 1600 1500
Electrical Property Volume Resistance at 20℃ Ωcm >1014 >1014
Electrical Property Dielectric Strength V/m 15X106 15X106
Electrical Property Dielectric Constant εr 10



99% Alumina Ceramic tubes

Alumina Ceramic Thermocouple Protection Tubes , Alumina Ceramic Furnace Tube 0Alumina Ceramic Thermocouple Protection Tubes , Alumina Ceramic Furnace Tube 1




1. Are you a factory?

    Yes, we're a factory producing industrial ceramics professinally. Our main products are alumina ceramics, zirconia ceramics and sic ceramics.


2. What's the size of it?

    Products are always customized according to drawings or samples. Diameter and height within 500mm are available.


3. What's the price for it?

    It depends. Prices are caculated by the drawing size and structure.


4. What's the production process?

    Our products are made mainly in cold isostatic pressing, dry pressing and hot press moulding technique. Hot press moulding technique, which was used to shape small and medium size and complicated structure ceramic, is a favorable method.


5. How about the delivery?

    Generally speaking, a ceramic production needs about 30 days to finish. Some special products maybe take a longer time. For some simple products, maybe 10-15 days is ok.


6. How's the packing?

    The usual packing is cartons, wooden cases, or pallets. Ceramics are fragile products, will use some breakage-proof materials to protect them.


7. Can you do the finish maching?

    Yes, we have lathes, grinding machines, milling machines, carves-milling machines to make sure products' accuracy.


8. Which is the nearest port?

    Shanghai port is the nearest one from us. It takes about 2-3 hours to get to shanghai port.

Contact Details

Phone Number : +8613482897532

WhatsApp : +8613482897532