High Purity Porous Insulation 95% 99% 99.5% Al2O3 Alumina Ceramic Insulating Tube

• Application: Industrial Ceramic
• Material: Alumina Ceramic
• Type: Ceramic Tubes
• Option Material: Zirconia, Silicon Nitride, Aluminum Nitride
• Shape: Round, Square, Oval, Half Tube
• Color: White, Ivory, Pink, Black
• Model NO.: alumina ceramic tube
• Purity of Material: Purity of Material
• Surface Finish: Polished, Glazed, Metalized
• Features: Wear Resistance, Insulation
• Forming Methods: Extrusion, ISO Pressed, Dry Pressed
• Transport Package: Individual Packaging
• Trademark: Zhongci
• Origin: Jiangxi
• HS Code: 8547100000
• Production Capacity: 10000 Piece/ Day

Product Description

Product Description

 

Alumina ceramic tubes are generally used as a kind of standard protection part, so our facility has many selections of stocks. Our vast, readily available inventory allows us to supply our customer's ceramic tube needs immediately, even for hard-to-find or specialty products. Aluminas are used in a variety of general-purpose applications, and their grade is chosen based on the application environment. Additionally, different purity alumina can be formulated in our factory if needed for more demand applications
 

Alumina Ceramic  is an excellent electrical insulator and one of the most widely used advanced ceramic materials. Additionally, it is extremely resistant to wear and corrosion. Alumina components are used in a wide range of applications such as electronics, pump components and automotive sensors. UNIPRETEC offers a variety of alumina compositions, including 92% , 95% , 96%,  99% , 99.5% and 99.8% Alumina, Alumina components can be formed by a variety of manufacturing techniques such as uniaxial pressing,isostatic pressing, injection molding and extrusion. Finishing can be accomplished by precision grinding and lapping, laser machining and a variety of other processes.

 

Alumina ceramic furnace tubes are widely used in high temperature tube furnaces, the operating temperature can reach 1600 ºC, and the conventional diameter is 60mm-120mm. The corundum furnace tube is an important ceramic part of the tube furnace. It is installed in the middle of the furnace. Both ends are covered with metal flanges for sealing. The material is put into the crucible and placed in the furnace tube.
 

 

Product Parameters

Tech-data	Test conditions	Unit	95% AL2O3	99.5% AL2O3
Density		g/cm3	> 3.60	3.7
Bending Strength		N/m3	2.24 × 108	> 2.74× 108
Linear Expansibility	20~1000C	a× 10¯ 6	-	-
	20~5000C	a× 10¯ 6	6.2~7.5	6.2~7.5
	20~8000C	a× 10¯ 6	6.5~8.0	6.5~8.0
Specific Inductive Capacity	1MHz		9~10	9~10.5
	10GMHz		9~10	-
Dielectric Loss	1MHz	a× 10¯6	≤ 4	≤ 1.5
Tangent	10GMHz	a× 10¯6	≤ 10	-
Volume Resistance	1000C	Ω . cm	> 1013	> 1014
	3000C	Ω . cm	> 1016	> 1012
	5000C	Ω . cm	108	-
Breakdown Strength		KV/mm	15	-
Thermal Conductivity	200C	W/m. K	25.2	29.2

 

1. Material: 
   Alumina, Zirconia, Silicon nitride, Aluminum nitride optional
   2. Forming methods: 
   Dry pressed, CIM, ISO pressed, Extrusion
   3. Dimensional capability:  
   ID with min.1mm,  OD with max .800mm
   4. Normina dimensional tolerance: 
   OD with 0.005mm, ID with 0.01mm, length with 1% of size
   5. Surface treatment: polished, glazed, or metalized
   6. Secondary processing: CNC machining, fine grinding, threaded, drilling.
   7. Types: Round tubes, square tubes, tubes with multiply holes

Main characteristics of alumina tubes
1. High-temperature resistance, up to 2000ºC in the vacuum atmosphere
2. Outstanding wear resistance, over 276 times in comparison with traditional stainless steel
3. Great mechanical properties, offers diamond-like hardness to be HRA85 
4. Exceptional corrosion resistance, it can withstand various strong acid and alkali, like HCL, H2SO4
5. Extraordinary electrical insulation, it always used in various high voltage, high-current application
6. High-precision dimensions with ideal fitting relationship

 

Detailed Photos

 

Alumina ceramic tube

Mainly used for the protection of the temperature sensor, make the temperature sensor and outside isolation, decrease or prevent components in use process by foreign materials, eroded oxidation and touch the worse.

* Purity: 50%, 75%, 85%, 95%, 99% Al2O3
* Color: white, pink, light yellow
* Place of Origin: Shenyang, China (Mainland)
* Delivery time: 3-30days which is according to quantity
* Eco-friendly: Yes
* MOQ: 5pcsz
* Trade term: FOB, EXW, CIF, CFR
* Payment term: T/T, Western Union, L/C
* Certificate: ISO,CQC ROHS
* Making sample time: all type in stock
* Advantage: high quality with high measuring accuracy, fast thermal response, high mechanical strength, long service lifetime,
wide temp measuring range of -200-1500centigrade

Features
1) Materials: 95% alumina oxide, 99% alumina oxide
2) Application: Used for all kinds of electric heating equipment and electric equipment, and textile machinery
3) Good smooth and high strength
4) A variety of specifications available
5) OEM, ODM and OBM are welcomed
 

Company Profile