High Purity Alumin Ceramic Ring Al2O3 Ring Plasma Proof for Equipment

Price Negotiable

Price: Negotiated

MOQ: 10

Delivery Time: 10-30days

Brand: YH

Product Description

High Purity High Plasma Durability Alumin Ceramic Al2O3 Plasma Proof Ring for Equipment

Alumina (Al₂O₃) ceramic ring:

Alumina ceramic rings are precision-engineered circular components made from high-purity aluminum oxide (Al₂O₃). These versatile rings combine exceptional hardness, thermal stability, and chemical resistance, making them ideal for demanding applications across multiple industries including semiconductor manufacturing, mechanical seals, thermal processing, and precision instrumentation.

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 PropertiesThe following only lists the performance parameters of the three most common aluminum oxide ceramics. 
Normally, alumina ceramics are composed of these types

Packing 
CNC Workshop
Dry Pressing Workshop
Polishing Machine
Zirconium Oxide Furnace
Sintering Kiln
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

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Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Hunan Yuanhong New Materials Co.,Ltd

Location No.22012 Building B,Wanda,Kaifu District,Changsha City,Hunan Province

Contact Person Julia

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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