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Factory Manufacture 99 Alumina Ceramic Ring

Shengda Ceramic provide all kinds of alumina ceramic ring from OD8mm to OD 80mm. Also can supply the mirror surface treatment to meet the sealing requirements of bearings, etc. Any dimension requirement, please contact us.

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Product Introduction

Factory Manufacture 99 Alumina Ceramic Ring

Factory-Manufactured 99% Alumina Ceramic Rings – Precision Engineered for Extreme Performance!

Looking for ultra-durable, high-purity ceramic components? Our 99% Al₂O₃ ceramic rings deliver unmatched:

✅ Heat Resistance – Withstand temperatures up to 1650°C!

✅ Superior Hardness – 9 Mohs scale for wear & corrosion resistance.

✅ Electrical Insulation – Perfect for high-voltage environments.

✅ Chemical Stability – Resists acids, alkalis, and harsh solvents.

Ideal for:

Semiconductor equipment

Mechanical seals & bearings

High-temperature furnaces

Pump components in corrosive industries

Factory Manufacture 99 Alumina Ceramic Ring

Why Choose Us?

ISO-certified manufacturing

Custom sizes & tolerances (OD 1mm–500mm)

Batch consistency guaranteed

Fast lead times & global shipping

Upgrade your industrial applications with ceramics built to last!

DM for quotes/samples or visit [ www.alumina-ceramics.com ]

Keywords: Ceramic Engineering、Advanced Materials、Industrial Components、Alumina Ceramic、Manufacturing Excellence

Main Features:

1. High hardness

2. High heat resistance

3. Good wear resistance

4. High electrical resistivity

5. High corrosion resistance

Technical Parameters

Properties	Units	Cordierite Ceramic	Mullite Ceramic	95%Alumina Ceramic	99%Alumina Ceramic	99.5%Alumina Ceramic	99.7%Alumina Ceramic	Silicon Nitride	Zirconia Ceramic
Colour		Yellow	White	White	Light yellow	Light yellow	Light yellow	Black	White
Density	g/cm3	1.9	2.6	3.6	3.8	3.8	3.9	3.2	6
Flexural Strength	Mpa	30	120	300	350	375	375	800	1100
Compressive Strength	MPa	350	500	2500	2800	2800	2554	2600	3000
Modulus of Elasicity(20℃）	Gpa	40	100	300	350	350	357	290	320
Max Use Temperature	°C	1200	1300	1400	1500	1500	1760	1300	1050
Thermal Condutivity	W(m.K)	1.3-1.8	2~6	20	30	30	33-38	25	3
Thermal Expansion Cofficient	10-6/°C	2.5-3	2.5-3	7.5	8	8.2	8.2	3	10
Thermal Shock Resistance	△T℃	300	150	140	150	200	223	600	250
Dielectric Strength	KV/mm	-	-	15	18	18	23.4	14	15
Dielectric Constant	Er	8	8	9	9.2	9.2	9.84	9	26

Production process

1. Grind and crush the raw materials to be slurry or powder

2. se-different method to making the slurry or powder into semi-finished products

3. Put the semi-finished products into the kiln for dewaxing and sintering;

4. After forming and sintering, Ceramic Sleeves products can also be processed by subsequent CNC precision machining according to the drawing requirements. Then Q/C test.

5. Finally package Ceramic Sleeves by bubble paper or cartons and place it on tray for delivery

95 alumina substrate

Certifications

95 alumina substrate

Our customers

Packaging and shipping

95 alumina substrate

Transport

Alumina AL2O3 Substrate Insulating Ceramic Substrate Thermally Conductive Ceramic Sheet

FAQ：

Q: Do you have the products in stock?

A: Some standard produce have in stock, such as ceramic band heater insulator; bobbin heater insulator and ceramic connector. But it needs to check according to your requirement.

Q: How do you pack the goods?

A: Our standard packaging is carton, we can customize it as per your requirement as well.

Q: How many days do you finish the sample?

A: Usually 15 business days (Including 8days for making furnaces and 7days for producing samples)

Factory Manufacture 99 Alumina Ceramic Ring