Product Description

Model NO.: N/A


Application: Construction, Aviation, Metallurgy, Chemical


Material: Alumina Ceramic


Lead Time: 15-30days


Transport Package: Carton or Wooden Case Packaging


Origin: China




Customized: Customized


Certification: ISO


Feature: Wear Resistant


Trademark: Actech


Specification: 50x50x30cm


HS Code: 85471000


We manufacture & supply advanced technical ceramic tubes custom machined to your specific design.

Ceramic tubes are finding their way into more and more application due to their highly desirable mechanical,

thermal, and electrical properties.



Ceramic tubes can be used in extreme environments unlike many other materials. Precision Ceramics has

a wide assortment of tube sizes available; depending upon the material, we can machine tubes with incredibly

tight tolerances. Additionally, Precision Ceramics has standard size Alumina Tubes available in a variety of

sizes and purities. Other materials may be available in custom dimensions and specifications. We are happy

to offer material design & application assistance for any special requirements.

Ceramic Tube Applications



Furnace work tubes


Kiln furniture, components & accessories


Thermocouple protection tubes


Heater Support Elements


High Temperature Electrical Insulators


Extreme temperature measurement components


Ceramic Laser components


High voltage electrical insulators

Product Name	Ceramic Sleeve/Tube/Ring
Material	Alumina, Zirconia, Silicon Nitride and Machinable Glass Ceramic
Size	According to customers' drawing and sample
Surface Roughness	Ra0.05
Tolerance	+/-0.01mm
Lead time	15 - 30days
Max. Working	1500 -1700 °C
Samples	Avaliable
Shipping	Air Express (DHL/UPS/TNT/ FedEx) or Ocean Shipping

Products Show:

Properties	Units	96% Al2O3	99% Al2O3	Zirconia	Silicon Nitride	Machinable Ceramic
Material Characteristics
Gas Permeability		0	0	0	0	0
Water Absorption	%	0%	0%	0%	0%	0.038%
Colour		White	Ivory	White	Grey	White
Density	g/cm3	3.7	3.85	6	3.2	2.7
Physical Characteristics
Hardness	Kg/mm2	1100	1400	1100	1600	1175
Modulus of Elasticity	Gpa	300	350	200	300	65
Flexural Strength	Mpa	300	340	1150	600	108
Compressive Strength	Mpa	2100	2200	2500	2500	488
Fracture Toughness	Mpam1/2	3.5	4	12	6
Thermodynamic Property
Max Use Temperature	°C	1500	1650	1500	1800	800
Thermal Conductiviey	W/(m.k)	25	27.5	2.5	20	1.68
Thermal Expansion Coefficient	10-6/°C	7.5	8	10	3.2	8.6
Thermal Shock Resistance	△T°C	200	200	250	600	200
Specific Heat	J/kg.K	860	860	500	500
Electrical Specification
Dielectric Strength	KV/mm	12	10	5		40
Dielectric Constant	εr	9.5	9.1	12	6	7
Volume Resistivity	Ω	≥1014	≥1014	≥1010	≥1014	≥1016
Dielectric Loss Angle		0.0002	0.0002	0.001

Manufacturing Process





Packing and Shipping:

Contact us if you need more details on Ceramic Wheel. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Zirconia Bush、Ceramic Bush. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Ceramic Sleeve/Tube