Alumina ceramic tube/pipe/rod/roller

Product Introduction

Offer a full length range from 1mm to 2600mm of aluminum oxide ceramic tubes. It is Pink glaze 95 99 alumina al2o3 ceramic tube can be resisted corrosion-resistant and anti-magneto insulation.

High temperature furnace used alumina ceramic tubes with best price
1. Extreme high temperature stability under reducing, inert and high vacuum condition under high temperature up to 1800C.
2. Extreme wear and abrasion resistance.
3. Chemical corrosion resistance under high temperature.
4. High dielectric properties.
5. Gas tight for many applications to provide protective atmospheres or high vacuum at high temperature to eliminate contamination or impurity. 

Chemical competentAl2O3≥85%
Alkaline matter<2.5%
Density2.6 g/cm3
Hardness7 M
Water absorption<0.2%
Water absorption>1300kg/cm2
Gas tightnessKept for ten minutes at negative pressure of 1.3Kpa. The pressure drop is less than 0.3Kpa.
Heat toleranceInsert the pipe into the furnace at a depth of 20mm. Heat to 1600ºC and maintain for 30 minutes.
Alkali toleranceIn the Na2CO3 solution of 2N concentration, boil for 15 hours with the weight loss not greater than 20mg/dm2.
Volume resistance>2*10(5) Ω@cm/1300ºC
Breakdown voltage18kv/cm
Expansion coefficient5*10(-8)
Temperature for useLong-term: 1400ºC  Short-term: 1600ºC
Chill and abrupt heat1300ºC~room temperature not cracking thrice.

Performance For Industrial Ceramic

 ItemUnitSteatite Ceramic95Al2O399Al2O399.7Al2O3

Physical Characteristics

Bulk densityg/cm32.
Water absorption%0000

Mechanical Characteristics

Flexural strengthMpa145320340350
Hardness VickersGpa5.712.213.514
Elastic modulusGpa120280320320
Poisson’s ratio-

Thermal Characteristics

Linear expansion coefficient(20-500 C) 10-6/ C7.
Thermal conductivityw/(m.k)2.5162428
Specific Heat*10-3J/(kg*K)0.750.780.78

Electrical Characteristics

Dielectric constant(1MHZ)-
Dielectric loss angle*10-4181550.0001
Dielectric strength*106V/m1812158.7

Application :

Widely used in lamps and lanterns, electronic appliances, blast nozzle, auto parts, wear-resistant parts of insulating material, etc


We can do OEM and OBM according to your drawing and requires

Product Details
Factory Pictures
Company Advantages
Philosophy:With excellent quality, firt-class service, honest business
Group:We have our own team to research, design, produce and sell.
History:We are a company combined with R&D, production and sales wholly,
Packing:Packing in export wooden cases is strictly adopted
Why us?
* Professional manufacturer since 1997.
* Strict quality control on production process and tolerance.
* Free samples available
* Customized production based on your drawing or specification
* On-time delivery and reliable support and service
* Inventory available for quick shipment
* We keep confidentiality of all the drawings and business information between us.
Are you a trading company or a manufacturer?
* We are a manufaturer. 
Can you provide the free samples?
* Yes,we can offer free sample if we have it in stock,but the courier fee is to be collected.
Do you accept customized production based our specification?
* Yes,we offer OEM and ODM service. Just send us your drawing if you have it. If you don’t have a drawing, just tell us your idea, we will work out the drawing for you.
What's the delivery time?
* 7 working days for standard products 30 days for customized product.

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Contact Us
Take advantage of our unrivaled knowledge and experience, we offer you the best customization service.

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The first thing we do is meeting with our clients and talk through their goals on a future project.
During this meeting, feel free to communicate your ideas and ask lots of questions.
They are all manufactured according to the strictest international standards. Our products have received favor from both domestic and foreign markets.
They are now widely exporting to 200 countries.

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