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Alumina Balls
Alumina Balls are high-purity spherical ceramic shapes available from Goodfellow in a range of quantities. With high hardness, compressive strength and wear resistance, alumina ceramic is valued for applications where resistance to corrosion, abrasion and thermal shock are priorities. Example applications for alumina balls include ball bearings, valve seats, grinding media and milling media. With 28 quantity variations, Goodfellow's alumina balls offer flexibility for prototyping and small-scale manufacturing across diverse industries.
Formula: Al₂O₃
Diameter: 1mm
Quantity: 100 Pcs
Type: Precision Sphere
Sphericity: 0.625µm
CAS Number: 1344-28-1
UOM Code: 930-952-53
Diameter: 1mm
Quantity: 100 Pcs
Type: Precision Sphere
Sphericity: 0.625µm
CAS Number: 1344-28-1
UOM Code: 930-952-53
SKU: 1000024221
Product Code: AL60-SP-000115
Tolerances
Balls
| Diameter | Standard | ±5% |
|---|---|---|
| Diameter | Precision | See Item |
Tolerances
Balls
| Diameter | Standard | ±5% |
|---|---|---|
| Diameter | Precision | See Item |
$373.68
each
- Buy 5 for $303.15 each and save 19%
- Buy 10 for $276.95 each and save 26%
No Minimum order
Despatch of products in stock within 48 hours
Free technical support
*Free delivery worldwide
Material Properties for Ceramics
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Good |
| Acids - dilute | Good |
| Alkalis | Good |
| Halogens | Good |
| Metals | Good |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant | 9-10.1 |
| Dielectric strength( kV mm⁻¹ ) | Oct-35 |
| Volume resistivity( Ohmcm ) | >10¹⁴@25 |
Physical Properties
| Element | Value |
|---|---|
| Apparent porosity( % ) | 0 |
| Water absorption - saturation( % ) | 0 |
| Density( gcm⁻³ ) | 3.9 |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 2100 |
| Upper continuous use temperature( C ) | 1700 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 850-900@25°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 26-35@20°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 8@20-1000°C |
Mechanical Properties
| Element | Value |
|---|---|
| Tensile modulus( GPa ) | 300-400 |
| Hardness - Knoop( kgf mm⁻² ) | 2100 |
| Hardness - Vickers( kgf mm⁻² ) | 1500-1650 |
| Shear strength( MPa ) | 330 |
| Tensile strength( MPa ) | 260-300 |
Pultrusions
| Element | Value |
|---|---|
| Compressive strength( MPa ) | 2200-2600 |
Other Customers Purchased
-
Alumina Balls Formula: Al₂O₃
Diameter: 3mm
Quantity: 1000 Pcs
Type: Precision Sphere
Sphericity: 0.625µm
CAS Number: 1344-28-1
UOM Code: 367-225-10
$2,093.00eachDiscounts applied for volume purchases -
Alumina Balls Formula: Al₂O₃
Diameter: 0.5mm
Quantity: 100 Pcs
Type: Precision Sphere
Sphericity: 0.625µm
CAS Number: 1344-28-1
UOM Code: 834-667-48
$364.83eachDiscounts applied for volume purchases -
Alumina Balls Formula: Al₂O₃
Diameter: 3mm
Quantity: 10 Pcs
Type: Precision Sphere
Sphericity: 0.625µm
CAS Number: 1344-28-1
UOM Code: 471-088-86
$198.35eachDiscounts applied for volume purchases -
Alumina Balls Formula: Al₂O₃
Diameter: 3mm
Quantity: 100 Pcs
Type: Precision Sphere
Sphericity: 0.625µm
CAS Number: 1344-28-1
UOM Code: 411-270-72
$451.61eachDiscounts applied for volume purchases -
Alumina Balls Formula: Al₂O₃
Diameter: 0.5mm
Quantity: 10 Pcs
Type: Precision Sphere
Sphericity: 0.625µm
CAS Number: 1344-28-1
UOM Code: 439-337-21
$193.04eachDiscounts applied for volume purchases -
Alumina Balls Formula: Al₂O₃
Diameter: 1mm
Quantity: 10 Pcs
Type: Precision Sphere
Sphericity: 0.625µm
CAS Number: 1344-28-1
UOM Code: 527-699-20
$193.04eachDiscounts applied for volume purchases
