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One End Closed High Heat-resistance Alumina Ceramic Thermocouple Protection Tubes

5.0~10.0 USD
Min. Order: 50 Piece/Pieces
Trade Term: FOB
Payment Terms: Paypal, T/T, WU
Supply Ability: 80000pcs
Place of Origin: Fujian

Company Profile

Location: Xiamen, Fujian, China (Mainland)
Business Type: Manufacturer, Trading Company, Distributor/Wholesaler
Main Products: Industrial Ceramic, Advanced Ceramic, Technical Ceramic

Product Detail

Model No.: UPT-ALC005
Means of Transport: Ocean, Air
Brand Name: UNIPRETEC
Material: Alumina Ceramic
Purity: 99.7%
Color: Ivory
Density: 3.9g/cm3
Young's Modulus: 350Gpa
Flexural Strength: 300Mpa
Compressive Strength: 2500Mpa
Thermal Conductivity: 30W/(m•K)
Thermal shock resistance: 180-200ΔT(C°)
Max. Working Temperature: 1700℃
Production Capacity: 80000pcs
Packing: wooden box/carton box
Delivery Date: 40days
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Product Description

Alumina ceramic thermocouple protection tubes are mainly used for the conditions that high temperature resistance is required.They are always used as protective tubes. Their operating temperature can be up to 1800° C. 

Alumina thermocouple protection tubes also have outstanding corrosion resistance and are highly chemically resistant to acids, solvents, and salts.

Additionally,ceramic thermocouple protection tubes have high hardness, wear resistance, insulation property,can be used as fuse insulating tube on the electric and electronic appliances.


Properties of Alumina Ceramics

Alumina has a high melting point, high hardness and high mechanical strength, although mechanical strength is reduced at temperatures above 1000°C. Due to the relatively large coefficient of thermal expansion, thermal shock resistance is reduced. Alumina is an electrically insulating material, with a high electrical resistivity, increasing with purity.Good chemical stability of alumina, leads to a high corrosion resistance. It is insoluble in water and only slightly soluble in strong acid and alkaline solution.

CharacteristicsUnit95 Al2O399 Al2O3ZrO2GPSi3N4BNGlass Ceramic
Crystal Structure-hexagonalhexagonaltetragonalhexagonalhexagonal-
Color-whiteivorywhitegraywhitewhite
Densityg/cm33.653.885.953.222.262.55
Water Absorption%00000.0-1.00
Young's ModulusGpa28035020529567065
Vickers HardnessGpa14201218-20--
Flexural Strength @R.T.Mpa28030090065051100
Compressive Strength @R.T.Mpa2000250022002200230500
Thermal Conductivity @R.T.W/(m*k)18-25302.225201.7
Thermal shock resistanceΔ(℃)220180-200280-350450-650>150025-100
Max. Working Temperature @R.T.150017008501200960800
Volume Resistivity @R.T.Ω*cm>10^15>10^14>10^12>10^1410^1310^16
Dielectric Constant (1 MHz @R.T. )-9.59.8268.24.086.02
Dielectric StrengthkV/mm1622-1637540


One End Closed High Heat-resistance Alumina Ceramic Thermocouple Protection Tubes

Various Application of Alumina Ceramics

*Seal rings

*Medical prostheses

*Laser tubes

*Electronic substrates

*Ballistic armour

*Thermocouple tubes

*Electrical insulators

*Grinding media

*Threadguides

*Wear components


One End Closed High Heat-resistance Alumina Ceramic Thermocouple Protection Tubes


About UniPreTec

UniPreTec provides high-performance ceramic products in Alumina, Zirconia, Boron Nitride, Machinable Glass Ceramic, Silicon Nitride and  further special materials. Along with these materials, we offer several machining from which to choose such as cutting, drilling, sawing, turning, grinding, polishing etc.. Furthermore, our technologies and equipments allow us to provide various and flexible forming processes, like dry pressing, isostatic pressing, extrusion, injection moulding and slip casting.


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