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Ruby Balls
Ruby Balls from Goodfellow feature high-precision polished ruby spheres available in 20 variations. These precisely crafted balls exhibit excellent hardness, chemical resistance, and optical properties. Potential applications for Ruby Balls include instrument bearings and laser optics.. With their superior physical characteristics and precision manufacturing, Goodfellow's Ruby Balls offer exceptional performance across a variety of scientific, industrial, and commercial uses.
Formula: Al₂O₃ /Cr₂O₃ /Si₂O₃
Diameter: 0.3mm
Quantity: 10 Pcs
Type: Precision Sphere
Sphericity: 0.625µm
CAS Number: 1344-28-1
UOM Code: 221-791-91
Diameter: 0.3mm
Quantity: 10 Pcs
Type: Precision Sphere
Sphericity: 0.625µm
CAS Number: 1344-28-1
UOM Code: 221-791-91
SKU: 1000010010
Product Code: AJ60-SP-000115
Tolerances
Ball/Sphere
| Diameter | Standard | ±5% |
|---|---|---|
| Diameter | Precision | See Item |
Tolerances
Ball/Sphere
| Diameter | Standard | ±5% |
|---|---|---|
| Diameter | Precision | See Item |
€164.65
each
- Buy 5 for €133.37 each and save 19%
- Buy 10 for €125.13 each and save 24%
No Minimum order
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 | 7.5-11.5 |
| Dielectric strength( kV mm⁻¹ ) | 15-50 |
| Volume resistivity( Ohmcm ) | 10¹⁴@25 |
Physical Properties
| Element | Value |
|---|---|
| Useful optical transmission range | 150-5500nm |
| Apparent porosity( % ) | 0 |
| Water absorption - saturation( % ) | 0 |
| Density( gcm⁻³ ) | 3.98 |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 2050 |
| Upper continuous use temperature( C ) | 1800-1950 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 750@25°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 35-40@20°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 5.8@20-1000°C |
Mechanical Properties
| Element | Value |
|---|---|
| Tensile modulus( GPa ) | 350-390 |
| Hardness - Knoop( kgf mm⁻² ) | 2000 |
| Hardness - Vickers( kgf mm⁻² ) | 2500-3000 |
| Tensile strength( MPa ) | 250-400 |
Pultrusions
| Element | Value |
|---|---|
| Compressive strength( MPa ) | 2100 |
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Length 1: 25mm
Length 2: 25mm
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Percentage Purity: 99.999%
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Alumina Balls
Formula: Al₂O₃
Quantity: 10 Pcs
Type: Non-Precision Sphere
Sphericity: Nominal
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Zinc Arsenide Powder Formula: Zn₃As₂
Percentage Purity: 99%
Maximum Particle Size: 150µm
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