Main production of fire assay crucible,Graphite crucible,Silicon carbide crucible.Also  accept OEM and ODM.

Alumina ceramic tube/pipe/rod/roller
  • Product Details

Product Introduction

Alumina Thermocouple protection tubes are available as a closed end tube with a reusable stainless steel coupling device. This device has 2 ways to use: the thermocouple protection tube can be hung by the flange or attached via the threaded end of the coupling device.

1. Materials: 95% alumina oxide, 99.5% alumina oxide
2. Color: white, pink, light yellow
3. Shape: one end closed
4. Application: Used for all kinds of electric heating equipment and electric equipment, and textile machinery
5. Temperature Max. 1400C°

1. Good smooth and high strength
2. A variety of specifications available
3. OEM, ODM and OBM are welcomed

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.

Basic Information
  • Year Established
  • Business Type
  • Country / Region
  • Main Industry
  • Main Products
  • Enterprise Legal Person
  • Total Employees
  • Annual Output Value
  • Export Market
  • Cooperated Customers


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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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