high precision si3n4 Silicon nitride ceramic balls

FOB Reference Price:Get Latest Price
US $230-400 / Kilogram | 10 Kilogram/Kilograms sample order available (Min. Order)
Supply Ability:
5000 Piece/Pieces per Week
Port:
Express Courier/ Air/Ocean Freight Service
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Overview
Quick Details
Place of Origin:
Hunan, China (Mainland)
Type:
Ceramic Balls, high precision si3n4 Silicon nitride ceramic balls
Application:
Structure Ceramic
Material:
Alumina Ceramic
Model Number:
kx-01
Brand Name:
KAIXIN
Si3N4 content:
99%
Density:
3.18g/cm3
Apparent Stomatal Rate(%):
<1
Rockwell Hardness(HRA):
93
Flexural Strength(Mpa):
750(20℃),485(1400℃)
Max.Use Temperature in Air(℃):
1400
Elasticity Modulus(Gpa):
320
Fracture Toughness:
7
Thermal Conductivity[W/(m.K):
25
Packaging & Delivery
Packaging Details
Carton packing as per the characteristic of our products;
If there's special demands, we will respect your suggestion.
Delivery Time
15 work days after confirm the deposit

high precision si3n4  Silicon nitride ceramic balls

Product Description

 There are many advantages for silicon nitride ceramic ball,you can find as below.
1. Strong corrosion resistance. Silicon nitride ceramic balls are provisioned with anti-oxidation and corrosion resistance stability in oxidizing and corrosive environments, especially in the contact area squeezed out of the oil film by repeated rolling.
2. High temperature resistance. The strength and hardness of silicon nitride ceramic balls can constant at 1100 ℃.
3. Non-magnetic property and electrical insulation. Si3n4 ceramic balls can also be used in the magnetic field.
4. The density of silicon nitride ball is 3.26g/cm3,which is 60% lighter than the steel ball, greatly reducing the centrifugal force and abrasion of bearings rotating at high speed. Moreover, due to the low density and little centrifugal force of ceramic rolling materials, it can run at higher speed and generate less heat.
5. High rigidity and high strength. The hardness is twice as high as the bearings steel ball while the elastic modulus is half of that.
6. The linear expansion coefficient of the silicon nitride ceramic ball is 3.2×10-6/K, almost 1/4 of the bearings steel, which is able to withstand sudden change of temperature.
7. The self-lubricating property of si3n4 ceramic ball can solve the pollution and inconvenient addition caused by lubricating medium which can also be used in vacuum and high temperature.
8. Also with the advantage of Low thermal conductivity.

 

Detailed Images

 

 

Technic Data

 

Performance

Performance

General

Our product

Purity

>99.8

>99

Density (g/cm3 )

>1.91-1.95

3.18

Apparent porosity(%)

<15

<1

Cold crushing strength

>50

>1200

Highest use temperature in air (℃)

1650

1400

Highest use temperature in protective atmosphere(℃)

1650

1800

Cold bending strength (MPa)

>25

750

High temperature bending strength(MPa)

>28

485(1400℃)

 

Standard Sizes


With circumferential flat bottomed or hemispherical groove on request. 

Other sizes and groove designs available on request.

 

 

 

 

Advantages

Kaixin advanced ceramic products are manufactured at ISO 9001 certified facilities. Our manufacturing processes are optimized for quality, efficiency and consistency  helping ensure reliable and repeatable product performance

 

Materials Comparison

Materials

Linear thermal expansion coefficient 25-1000°C (10-6 .K-1)

Thermal conductivity (W/m.K)

Maximum operating temperature (°C) in air

Thermal shock   resistance

Alumina (94%-99,8%) 

7,5 to 9,5

18 to 30

1500 to 1700

+

Alumina-zirconia composites

8

25

1500

++

Zirconia MgO & Y-TZP

10

2 to 2.5

1000 to 2000

++

Aluminium nitride

5,5

140 to 180

800

++

 silicon carbide

4 to 5

80 to 125

1400 to 1900

+++

 silicon nitride

3 to 4

20 to 25

1200 to 1500

++++

 

Certifications

 

Packaging & Shipping
 

 

Packaging:

We ensure to offer safe package and fast delivery for all our customers .

1.for big size cylinders : plastic pallet

2.for small size cylinders :polywood case with inner foam

 

Shipping :

1.By sea / By air / By courier (DHL, UPS, TNT, FEDEX, EMS express are available )

2.As customized requirements

FAQ


1. Are you manufacture?
    Yes, we are manufacturer and  We have R&D and production departments.
 
2.How about yr QC system?

 we have ISO9001 cer
tification .
 
3. Can you provide OEM/ODM services?
    Yes, customization is available
 
4. What is your MOQ?
     Our minimum order quantity is 100pc. small order is OK if you want small order for market test

 

5. What is your delivery time?
     Delivery time is: 10-15days after confirm deposit
 
6. Can you provide shipping service?
     Yes, Our company has long time cooperation forwarder can provide you shipping service by express, by Air & by Sea.

 

 
Company Information

 

Hengyang Kaixin established in June,2013, is specialized in designing and manufacturing of special ceramic material products.Our main product like Silicon nitride stalk,thermocouple protective tube,plunger,crucible,milling ball,industrial heating rod,radiant tube,electrode protection cover,which are widely used in military project,aerospace and navigation,smelt,chemical industry,electronics,medicine.

 

Through years of research and development and technology accumulation,the mature modern production line have been gradually established, to internationalize the high purity silicon nitride special ceramic materials as our own task,we give full play to the advantages of technology and repay the society with high quality products and satisfactory service.

 

In a policy of 'Careful Design, Sincere Service, International Level and Customer First', we provide high-quality products and services for the customers.We sincerely welcome friends at home or abroad to visit and seek mutual development.