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High Insulation Wear Resistant Precision Al2O3 Alumina Ceramic Rod

Basic Information

Place of Origin:	CHINA
Brand Name:	YH
Certification:	ISO,CE
Model Number:	YH

Minimum Order Quantity:	100
Price:	Negotiated
Packaging Details:	by caront or wooden case
Delivery Time:	10-30days
Payment Terms:	L/C,D/A,D/P,T/T,Western Union
Supply Ability:	10000pcs per month

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Detail Information

Material:	99% High Purity Alumina (Al₂O₃) Ceramic	Shape:	Solid Cylindrical
Core Feature:	High Insulation, High Wear Resistance, High Temperature Resistant	Density:	3.85g/cm³
Working Temp:	Up To 1600℃	Machining Tolerance:	±0.003mm
Surface Finish:	Mirror Polished / Fine Grinding	Application:	Precision Equipment, Pump Plunger, Locating Pin, Electronic Insulation
Custom Service:	Custom Diameter, Length, Chamfer, Slot Available	Supply Spec:	Standard Stock & Non-standard Customization

Product Description

Precision Wear Resistant 99% Al2O3 Ceramic Column Rod

Alumina (Al₂O₃) Ceramic Rod:

We specialize in manufacturing 99% high-purity alumina ceramic rods, produced with premium

alumina powder via dry pressing and high-temperature sintering, followed by precision centerless

grinding and mirror polishing. Dense pore-free structure delivers outstanding wear resistance,

electrical insulation and thermal stability. Widely used as core ceramic parts for precision machinery,

fluid equipment, new energy electronics and automation fixture positioning components. Standard

size rods are in stock, custom non-standard cylindrical ceramics per customer drawings & samples

are available.

High Insulation Wear Resistant Precision Al2O3 Alumina Ceramic Rod 0

Core Advantages

1:Ultra-long Wear Life: Harder than stainless steel, ultra-low friction loss; plungers & guide posts

maintain shape after long service.

2:Superior Electrical Insulation: High breakdown voltage, non-conductive at room & high temperature,

ideal for high-voltage electronic isolation.

3:Wide Temperature Resistance: Stable up to 1600℃ without deformation or softening, crack-resistant

under thermal cycling.

4:Ultra-precise Dimension: Tolerance down to ±0.003mm after fine polishing, excellent concentricity for

tight clearance assembly.

5:Chemical Corrosion Resistance: Acid & alkali resistant, inert to metal media, perfect for chemical & fluid

transfer equipment.

High Insulation Wear Resistant Precision Al2O3 Alumina Ceramic Rod 2

Application Alumina ceramic rod of application:1. Fluid Equipment: Ceramic pump plungers, valve cores, metering pump shafts 2. Automation Fixtures: Locating pins, guide posts, wear-resistant thimbles, insulating support pillars 
Electronics & Electrical: High voltage insulators, connector parts, new energy battery insulation components
Textile Machinery: Ceramic yarn guide rods, wear resistant wire passing columns 
Lab Equipment: High temperature wear resistant support posts

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 piston

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 ceramics.

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High Insulation Wear Resistant Precision Al2O3 Alumina Ceramic Rod

Precision Wear Resistant 99% Al2O3 Ceramic Column Rod

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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