Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
Your message must
be between 20-3,000 characters!
Submit Requirement
Thank You！
Your requirement has been sent. we will contact you quickly!
{"title":"OEM Industrial Electric Ceramics Ceramic Electric Heater Core Heating Element","imgUrl":"https:\/\/img.chinax.com\/nimg\/3c\/89\/d74cd1066af9022c047afc171393-200x200-1\/oem_industrial_electric_ceramics_ceramic_electric_heater_core_heating_element.jpg","attrs":{"Brand Name":"YH","Model Number":"Yh","Certification":"ISO\uff0cCE\uff0cROHS","Place of Origin":"CHINA"}}
{"title":"Circular Alumina Ceramic Gasket High Temperature Resistant Electrical Insulation","imgUrl":"https:\/\/img.chinax.com\/nimg\/cc\/1b\/01197d5225f65be7ff9b6a14c41b-200x200-1\/circular_alumina_ceramic_gasket_high_temperature_resistant_electrical_insulation.jpg","attrs":{"Brand Name":"YH","Model Number":"Yh","Certification":"ISO\uff0cCE\uff0cROHS","Place of Origin":"CHINA"}}
{"title":"Alumina Ceramic Components Electrical Ceramics for Electronics High Precision","imgUrl":"https:\/\/img.chinax.com\/nimg\/21\/43\/efd99b92c708011e2f2eabfa1d10-200x200-1\/alumina_ceramic_components_electrical_ceramics_for_electronics_high_precision.jpg","attrs":{"Brand Name":"YH","Model Number":"Yh","Certification":"ISO\uff0cCE\uff0cROHS","Place of Origin":"CHINA"}}
Industrial Ceramic Heater Core Heating Element Alumina Electrical Ceramic
Alumina (Al₂O₃) Electronic Ceramics: Powering the Core of High-Tech Electronics
The "Invisible Shield" for Stable Operation of Electronic Devices! Alumina Insulator Ceramic Tubes Are Here!
Who understands the stability anxiety of electronic components under high temperature and high pressure?
This high-purity alumina insulator ceramic tube fully delivers "peace of mind"!
✅ Superb Electrical Insulation: Available in 95%/99%/99.5% high-purity alumina material.
For 99.5% grade, volume resistivity ＞10¹⁶ Ω・cm, dielectric strength up to 20-25 kV/mm,
and dielectric loss tanδ ＜1×10⁻⁴ at high frequency, ensuring superior insulation reliability.
Eliminates leakage risks and guarantees precise circuit operation for various high-voltage electronic scenarios.
✅ Outstanding Key Performance: Mohs hardness grade 9 (second only to diamond),
wear resistance 8 times that of ordinary steel pipes; thermal conductivity 30-40 W/(m・K),
thermal expansion coefficient 7-8×10⁻⁶ /℃, stable operation in a wide temperature range of -40℃~1600℃,
no cracks after 50 thermal shock cycles.
Full Application Scenarios: Semiconductor equipment, power electronics, medical instruments, industrial sensors... It’s competent wherever insulation protection is needed!
Avoid pitfalls in electronic component selection—choose Alumina Insulator Ceramic Tubes! DM us for customized solutions, and enjoy surprise discounts on bulk purchases～
Application
Mechanical Properties
Properties
Unit
95%Al2O3
99%Al2O3
99.5%Al2O3
Colour
--
White
Yellow
Yellow
Density
g/cm³
3.7
3.85
3.9
Hardness
GPa
13.7
15.2
15.7
Compressive Strength
MPa
2000
2160
2350
Flexural Strength
MPa
280
310
350
Fracture Toughness
MPa・m1/2
3~4
3~4
4.5
Modulus of Elasticity
GPa
320
360
370
Poissons Ratio
--
0.23
0.23
0.23
Thermal Properties
Properties
Unit
95%Al2O3
99%Al2O3
99.5%Al2O3
Maximum Use Temperature
℃(No load)
1650
1650
1650
Thermal Conductivity @ 20°C
W/(m・K)
24
29
32
Thermal Expansion a at 20–400°C
1 x 10-6/°C
7~8
7~8
7~8
Specific Heat
J/(kg・K)
780
790
780
Thermal Shock Resistance
℃(Put in water)
200
200
200
Electrical Properties
Properties
Unit
95%Al2O3
99%Al2O3
99.5%Al2O3
Dielectric Constant
1MHz
9.4
9.9
9.9
Dielectric Strength
V/m
15 x 10 6
15 x 10 6
15 x 10 6
Dielectric Loss
1MHz
4 x 10 -4
4 x 10 -4
4 x 10 -4
Volume Resistivity @ 25°C
Ω・cm
>10 14
>10 14
>10 14
Volume Resistivity @ 500°C
Ω・cm
>10 8
>10 8
>10 10
Various Types of Alumina Ceramic Sealing Ring
We Can Do OEM and 0BM According to Your Drawing and Requirements.
Features of alumina ceramic
* Relatively low density;
* Extremely high operating temperature;
* Very high hardness and compressive strength;
* Excellent electrical insulation properties;
* Corrosion and wear resistance;
* Biologically inert, food compatibility.
Alumina Ceramic Properties
The following only lists the performance parameters of the three most common aluminum oxide ceramics.
Normally, alumina ceramics are composed of these types
Packing
Exhibition
FAQ
Q1. Do you provide product samples?
Yes, we provide samples subject to availability. A nominal sample fee may apply in some cases, and shipping costs are borne by the customer.
Q2. What are your accepted payment methods?
We accept T/T (bank transfer) in advance, Western Union, Alipay, and PayPal.
Q3. What is your typical delivery lead time?
Lead times vary depending on product requirements, including material selection, dimensions, and specific manufacturing processes.
Q4. Do you perform quality inspection before shipment?
Yes, we conduct 100% inspection of all goods prior to delivery to ensure they meet specified standards.
Q5. What other ceramic materials do you offer?
We supply a range of advanced ceramic materials, including Alumina, Zirconia, Aluminum Nitride,Boron Nitride, Silicon Nitride, Machinable Glass Ceramic, and related specialized ceramic
