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High Purity Alumina Ceramic Tube Insulators One End Closed

High Purity Alumina Ceramic Tube Insulators One End Closed

  • High Purity  Alumina  Ceramic Tube Insulators  One End Closed
High Purity  Alumina  Ceramic Tube Insulators  One End Closed
Product Details:
Place of Origin: China
Brand Name: Mingrui
Certification: ISO9001, , CE, UL, TUV
Model Number: XF-168
Payment & Shipping Terms:
Minimum Order Quantity: 1 pieces
Price: negotiable
Packaging Details: intertional carton box
Delivery Time: 15 working days after the order confirmed
Payment Terms: L/C, T/T, Western Union, MoneyGram, D/P, D/A
Supply Ability: 8000 pieces month
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Detailed Product Description
Name: Ceramic Tube Insulators Application: Alumina Ceramic Tube
Material: 99.7% 99.5% Alumina Feature: Electrical Insulation
Size: Custom MOQ: 1PCS
Shipping: DHL EMS UPS FEDEX TNT Type: Ceramic Tube
OEM: Yes And Welcome Delivery: 10 Days
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High Purity Alumina Ceramic Tube Insulators One End Closed


Tag key words:  ceramic tube insulators 

                             High purity alumina tube 


Product Name

High Purity Alumina Ceramic Tube Insulators One End Closed 
95%, 99%, 99.5% and 99.7% Alumina
 international standard 
Thermal resistance/ Wear resistance/ Stable Chemical Performance/ Corrosion resistance/ Electrical insulation, High compressive strength


Mingrui ceramic tube insulators  are 99.5% to 99.8% high purity and offer elevated temperature stability. Alumina tubes are available in custom sizes, including American and Metric, and offer a low material cost.

Minerals containing alumina make up nearly 15% of the earth’s crust. This makes it practically inexhaustible and versatile. Alumina provides the combination of low thermal expansion, superior thermal conductivity and high compressive strength making it thermal shock resistant and the ideal product for alumina tubes. Our alumina tube models have elevated dielectric properties and are gas tight providing a higher vacuum or protective atmosphere when at an extreme temperature.

These ceramic tube insulators offer:

  • Extreme high temperature stability under reducing, inert and high vacuum condition under high temperature up to 1800°C.
  • Extreme wear and abrasion resistance.
  • Chemical corrosion resistance under high temperature.
  • High dielectric properties.
  • Gas tight for many applications to provide protective atmospheres or high vacuum at high temperature to eliminate contamination or impurity.
  • Low material cost and custom size available.
  • Available Tube Diameter From 3/16″ to 9″ for American size and 2 mm to 150 mm.
  • Available Tube Length: From 1″ ( 25mm) To 72″ ( 1828mm).
  • Most items are in Stock and can be delivered in 1-3 days.
  • Sentro Tech also offer volume discount for all listed sizes if order quantity is more than 5 pieces for same size.

Typical Physical Properties of ceramic tube insulators 

Composition 99.80% AL2O3 99.5% AL2O3
Bulk Specific Gravity (g/cc) 3.9 3.8
Color Ivory Ivory
Impenetrability Gas Tight Gas Tight
Dye Penetration A.S.T.M. Tight Tight
Flexural Strength (psi) 70,000 50,000
Compressive Strength (psi) 370,000 350,000
Tensile Strength (psi) 43,000 33,000
Maximum Working Temperature 1800°C 1750°C
Likely Sag Temp. Unsupported Tube* 1600 oC 1600 oC
Thermal Conductivity 24oC 230 200
(BTU-in/ft2-hr-oF) 800oC 60 50
Dielectric Strength 24oC V/Mil 300 270
Thermal Expansion (per oC x 10-6) 8 8.4
(24oC-1000 oC)    
Hardness (Moh’s scale) 9 9
* Temperature at which an empty tube, 1 1/4″ diameter, suspended across an 18″ span, will sag 1/4″ in 1 hour.
Where sag is not acceptable, tubes must be adequately supported along the full length.
FAQ : 

1. What kind of industry ceramics do you have ? 

We specialized in 95% 97% 99% alumina ceramic and zirconia ceramic parts .


2. What kind of molding method do can you supply ? 

Dry Pressing , isostatic pressing , grouting , hot-chamber die casting , tape casting , injection molding, etc,   injection molding and isostatic molding is the most commonly used. 


3.What stabilizer do you use when processing ?

Yttria stabilizer is the most commonly used in our industrial ceramic parts.


4.Can you produce free samples for me ?

Yes usually ,  we can produce free samples for you but it is up to the product complexity .


5.What terms can you accept for payment ?

T/T, L/C , Western union , Money Gram and Paypal is welcome , but paypal and western union only for small -sum payment. 



More Product Photos : 


High Purity  Alumina  Ceramic Tube Insulators  One End Closed 0



High Purity  Alumina  Ceramic Tube Insulators  One End Closed 1


Contact Details
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Contact Person: bella

Tel: +8618122974730

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