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Quick Details

  • Place of Origin: Shandong, China (Mainland)
  • Type: Ceramic Tubes
  • Application: Industrial Ceramic
  • Material: Alumina Ceramic
  • Model Number: Customer's Requirements
  • Brand Name: SUPEREAL
  • Product name: Refractory supplier 99.7 % alumina tube corundum ceramic insulator
  • Alumina Content: 99.7 %
  • Density: 3.95 g/cm3
  • Long Working Temperature: 1650℃
  • Max. Working Temperature: 1800℃
  • Length: 100-2000 mm
  • Color: white , ivory
  • Water Absorption: 0
  • Electrical Insulation: excellent
  • Thermal Conductivity: 25

Packaging & Delivery

Packaging Details Packed with carton and shipped with plywood cases
Standard export package for Refractory supplier 99.7 % alumina tube corundum ceramic insulator
Delivery Time 15 days after order confirmed and advanced payment received

Refractory supplier 99.7 % alumina tube corundum ceramic insulator


Product Description

1. Brief Introduction:

 Due to various excellent performance of the alumina ceramics under wide range of industrical or labority conditions, refractory supplier 99.7 % alumina tube corundum ceramic insulator is mainly used in the area of thermocouple, thermal processes, protecting tubes, insulating tubes, furnace tubes, radiant tubes, support tubes for electric heaters, beams,profiles, incineration aids and special fabrications.


2. Performance of refractory supplier 99.7 % alumina tube corundum ceramic insulator:


    Main Tecnical Index:

Product Name Refractory supplier 99.7 % alumina tube corundum ceramic insulator
IndexUnit85 % Al2O395 % Al2O399 % Al2O399.7 % Al2O3
Water Absorption%<0.1<0.100
Sintered Temperature1620165018001800
Bending Strength(20℃))Mpa200300340360
Compressive StrengthKgf/cm210000250003000030000
Long Working Temperature1350140016001650
Max. Working Temperature1450160018001800
Volume Resistivity 20℃ Ω. cm3 >1013  >1013  >1013>1013
100℃ 1012-1013 1012-1013 1012-10131012-1013
300℃ >109 >1010 >1012 >1012


Advantages of refractory supplier 99.7 % alumina tube corundum ceramic insulator:

1.  Good smooth and high strength.

2. Extreme hardness, good protection from abrasion and corrosion.

3. High temperature resistance up to 1800℃

4. High dielectric properties.

5. Optimum air tightness


3. Product Categories

Refractory supplier 99.7 % alumina tube corundum ceramic insulator is usually to be made as Insulation Tubes ( Tubes with one pore, two pores and four pores) . Others: Protection Tubes ( Tubes with one end open and one end closed);Through Tubes( Tubes with both ends open). Please see details as follows:




Packaging & Shipping


Company Information

Zibo Supereal Industrial Co., Ltd, located in Zhangdian Economic Development Zone in Zibo city is focusing on high alumina ceramic products, here you can realize an one-stop shopping for complete wear and erosion protection solutions in wide range of industries including Power Sector, Mining, Cement, Metallurgy, Coal Washing, Steel& Iron Plant, Railway, Port and so on.

Along with the business development and the strong support of factory, we have just introduced and added high temperature resistant alumina ceramic rollers and alumina protection tubes as our major sales products too. 

Our company has a rigorous quality control system to guarantee stable performance and proven quality, our professional inspection team will carry out full course tracking from raw material selection, batching, production process management to semi and finished products test. Based on the strict adherence to ISO9001-2008 or Industry Standard or other International Standard, our products have been approved and accepted by clients and users from Vietnam, South Korea, India, Russia, Italy, Poland, USA and etc.

Besides the superior quality, Zibo Supereal Industrial Co., Ltd also earned a good reputation for fast deliveries, competitive pricing and outstanding customer service.

Our Services

  Professional:  More than ten years of experience in production, more than 5 years of experience in foreign trade export, we will supply prompt technical support on pre- and after sales.


 ◊ High Quality:Based on the strict adherence to ISO9001-2008 or Industry Standard or other International Standard, our inspection engineers carry out full course tracking in the whole production. 


 ◊ Focus on Details: No matter how small questions or problems shall be replied and help to solve by our members, even for the small orders.


◊ Price &Discount: We can provide competitive price and discount for large quantity. 


◊ OEM : Customized designs, sizes and logos are acceptable.  

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China (Mainland) | Trading Company
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12 Transactions 50,000+
The supplier’s transactions conduted via Alibaba.com in the past 6 months.
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Supplier's Trade Assurance Limit: US $22,000
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