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Ceramic Ball
Description
SILICON NITRIDE(Si3N4) CERAMIC BALLS Ball blanks sintering: gas pressure sintering(GPS) or hot isostatic pressure sintering(Hip). Available size ranges of ceramic balls: 1/16 (1.588mm) to 2(50.8mm). Highest available grade: G3 grade for ball...
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Detailed Product Description Bearing Steel Ball
SILICON  NITRIDE(Si3N4)  CERAMIC  BALLS
Ball blanks sintering: gas pressure sintering(GPS) or hot isostatic pressure sintering(Hip).
Available size ranges of  ceramic balls: 1/16” (1.588mm) to 2”(50.8mm).
Highest available grade: G3 grade for balls smaller than 1/2” (12.7mm), G5 grade for balls sized between 1/2”(12.7mm) to 1”(25.4mm), G10 grade for balls larger than 1”(25.4mm).
ZIRCONIA(ZrO2)  CERAMIC  BALLS
Ball blanks sintering: pressure-less sintering.
Available size ranges of ceramic balls : 2mm to 30mm
Highest available grade : G10 grade for balls smaller than 15mm,G16 grade for balls sized between 15mm to 35mm, G24 grade for balls larger than 35mm.
Table of material performance
Properties
Unit
Gcr15
(AISI52100)
9Cr18
(AISI440C)
Si3N4
ZrO2
Density
 
7.85
7.9
3.3
6.0
Thermal 
expansion coefficient
 
11
17
3.2
9.6
Elasticity
modulus
GPa
208
200
320
210
Poisson’
sratio
 
0.3
0.3
0.26
0.3
Hardness
 
800
700
1500
1250
Fracture 
strength
Mpa
2400
2600
900
1000
Bending 
toughness
 
 
 
 
 
Working 
temperature
Mpam1/2
20
25
7
10
resistance
120
150
1000
800
Corrosion
 
none
little
power
power
Magnetism
 
have
have
none
none
Size stability
 
no good
no good
good
good
Conductivity
 
conductor
conductor
insulator
insulator
    
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