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99% High Alumina Ceramic Tube For Furnace Thermocouple Protection

99% High Alumina Ceramic Tube For Furnace Thermocouple Protection

    • 99% High Alumina Ceramic Tube For Furnace Thermocouple Protection
    • 99% High Alumina Ceramic Tube For Furnace Thermocouple Protection
  • 99% High Alumina Ceramic Tube For Furnace Thermocouple Protection

    Product Details:

    Place of Origin: China
    Brand Name: Mingrui
    Certification: ISO9001, , CE, UL, TUV
    Model Number: Customized reqirement

    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
    Material: 95% 97% 99 % Al2O3 Ceramic Feature: High Wear Resistant
    Custom: Acceptable Function: Industrial Ceramic
    Shipping: DHL EMS UPS FEDEX TNT OEM: Yes And Welcome
    Delivery: 15 Days Color: White, Yellow,or Customized


    99% High Alumina Ceramic Tubes For Furnace Thermocouple Protection



    1. High hardness.

    2. High heat resistance : Alumina ceramic has excellent thermal stability,which means that it is

    widely used in areas where resistance to high temperatures is essential.

    3. Good wear resistance : Alumina ceramic is the material of choice for alumina wear parts.

    4. High electrical resistivity : Alumina is an electrically insulating material.

    5. High corrosion resistance : It is insoluble in water and only slightly soluble in strong acid and

    alkaline solutions.

    6 Good chemical stability of alumina leads to high corrosion resistance.





    Alumina Content Unit 90-96% > 99.5% 99%
    General Application   High Strength, Wear Resistant, Electronic, Insulating, Mechanical, Structural & Metalizing Extremely High Purity, Temperature & Strength; Excellent Corrosion & Wear Resistance Porous, Easily Degassed & Machinable
    Porosity % 0-.05 0-.05 Variable
    Density gm/cm3 3.55-3.75 3.75-3.95 2.4
    Flexural Strength kpsi 40.0-50.0 50.0-55.0 -
    Comprehensive Strength kpsi > 300.0 > 300.0 -
    Tensile Strength kpsi 20.0-28.0 20.0-28.0 -
    Linear Coefficient of Thermal Expansion (cm/cm/°C) 25-300°C 25-700°C 6.3X10-6 7.0X10-6 6.5X10-6 7.5X10-6 6.5X10-67.5X10-6
    Dielecctric Constant at 25°C 1 MH 10 MH 9.2-9.8 9.0-9.6 9.5-9.9 9.3-9.7 -
    Dielectric Strength Volt/mil 225 225 -
    Te Value °F °C > 1832 > 1000 > 1832 > 1000 > 1832 > 1000
    Thermal Conductivity at 25°C cal/sec/cm2/cm/°C .04-.06 .07-.08 -
    Safe Use Temperature °F °C 3000-3100 1650-1700 3275 1800 3275 1800

    Available Sizes

    • ID: 4mm-18mm
    • OD: 6mm-24mm
    • Length: 500mm-1500mm


    Available Types

    • Single bore
    • Double bore
    • Closed & open ended
    • Extruded
    • Cast


    Alumina Tube Applications

    • Furnace liner tubes
    • Protection tubes
    • Thermocouple protection tubes
    • RTD (resistive thermocouple devices)
    • Electrical stand off insulators
    • Gas laser tubes
    • High temperature electrical insulators
    • Abrasion resistant tube and elbow liners




    IMAGE:Machining accuracy chart of shape and material


    * Surface roughness depends on the material. The data shown hear indicates where alumina is used.


    Company Introduction:

    Dongguan Ming Rui Ceramic Technology Co., LTD., a professional manufacturer of machined ceramic parts, has 10 senior engineers and lots of technicians. We produce strengthened structure zirconia ceramic bar, ceramic tube, ceramic shaft, ceramic plate, ceramic sleeve, ceramic valve, ceramic plunger and ceramic arm. The products are applicable to instruments, medical instruments, clocks and electronic products, mills, energy and power, machine and metals, autocar and military and some other high-end areas.
    In cooperation with Tsinghua University, we've achieved great successes in particular requirements. With our professional knowledge and business experience in machined ceramic parts, low-budget and high-performance new ceramic products are made of high–quality raw materials. The value of our ceramic products is greatly increased due to the composite technology and precise processing.
    Our high efficiency machined ceramic parts, perfect service and good reputation roots in our professional machined ceramic technology, continuous innovation, great sincerity and our pursuit for sustainable development. We have a unique technnology called “mirror polishing” that has improved the brightness, color, smoothness of our ceramic parts.


    FAQ : 

    1. What kind of industry ceramics do you have ? 
    We specialized in 95% 97% 99% alumina ceramic and zirconia ceramic parts .
    2.Can you produce free samples for me ?
    Yes usually ,  we can produce free samples for you but it is up to the product complexity .
    3.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 photos : 


    99% High Alumina Ceramic Tube For Furnace Thermocouple Protection99% High Alumina Ceramic Tube For Furnace Thermocouple Protection

    Contact Details
    Dongguan Ming Rui Ceramic Technology Co.,ltd

    Contact Person: bella

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