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Grade: Grade 200
Formula: Cu
Form: Ball/Sphere
Material: Copper
CAS Number: 7440-50-8
Commodity: Metals
Type:
Precision Sphere
Sphericity:
5.08µm
Grade 200 Copper Balls from Goodfellow are a series of spherical metal products available in 7 variations. These copper alloy balls exhibit excellent thermal and electrical conductivity along with good corrosion resistance. Potential applications include ball bearings, flow regulators for gases and liquids, and electrical contacts where the balls can be spring loaded. With 7 quantities to choose from, Goodfellow's Grade 200 Copper Balls offer flexibility for prototyping and small-scale manufacturing across industries like aerospace, automotive, and electronics.
Tolerances
Ball/Sphere
| Diameter | Standard | ±5% |
|---|---|---|
| Diameter | Precision | See Item |
Material Properties for Metals
Atomic Properties
| Element | Value |
|---|---|
| Atomic number | 29 |
| Crystal structure | Face centred cubic |
| Electronic structure | Ar 3d¹⁰ 4s¹ |
| Valences shown | 1, 2 |
| Atomic weight( amu ) | 63.546 |
| Thermal neutron absorption cross-section( Barns ) | 3.8 |
| Photo-electric work function( eV ) | 4.5 |
| Natural isotope distribution( Mass No./% ) | 65/ 30.8 |
| Natural isotope distribution( Mass No./% ) | 63/ 69.2 |
| Atomic radius - Goldschmidt( nm ) | 0.128 |
| Ionisation potential( No./eV ) | 4/ 55.2 |
| Ionisation potential( No./eV ) | 6/ 103 |
| Ionisation potential( No./eV ) | 1/ 7.73 |
| Ionisation potential( No./eV ) | 5/ 79.9 |
| Ionisation potential( No./eV ) | 3/ 36.8 |
| Ionisation potential( No./eV ) | 2/ 20.29 |
Mechanical Properties
| Element | Value |
|---|---|
| Material condition | Soft |
| Material condition | Hard |
| Poisson's ratio | 0.343 |
| Poisson's ratio | 0.343 |
| Bulk modulus( GPa ) | 137.8 |
| Bulk modulus( GPa ) | 137.8 |
| Tensile modulus( GPa ) | 129.8 |
| Tensile modulus( GPa ) | 129.8 |
| Izod toughness( J m⁻¹ ) | 68 |
| Izod toughness( J m⁻¹ ) | 58 |
| Hardness - Vickers( kgf mm⁻² ) | 87 |
| Hardness - Vickers( kgf mm⁻² ) | 49 |
| Tensile strength( MPa ) | 314 |
| Tensile strength( MPa ) | 224 |
| Yield strength( MPa ) | 270 |
| Yield strength( MPa ) | 54 |
Electrical Properties
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 1.69@20@20°C |
| Temperature coefficient( K⁻¹ ) | 0.0043@0-100°C |
| Thermal emf against Pt (cold 0C - hot 100C)( mV ) | 0.76 |
Physical Properties
| Element | Value |
|---|---|
| Boiling point( C ) | 2567 |
| Density( gcm⁻³ ) | 8.96@20°C |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 1083 |
| Latent heat of evaporation( J g⁻¹ ) | 4796 |
| Latent heat of fusion( J g⁻¹ ) | 205 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 385@25°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 401@0-100°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 17@0-100°C |
Other Customers Purchased
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Copper Rod Formula: Cu
Percentage Purity: 99.9%
Diameter: 9.5mm
Length: 100mm
Temper: Hard
CAS Number: 7440-50-8
UOM Code: 009-208-98
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Copper Foil
Formula: Cu
CAS Number: 7440-50-8eachStarting at $235.56
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Alumina Balls
Formula: Al₂O₃
Quantity: 10 Pcs
Type: Non-Precision Sphere
Sphericity: Nominal
CAS Number: 1344-28-1
UOM Code: 439-337-21eachStarting at $117.65
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Silver Plated Copper Spooled Wire Formula: Cu
Percentage Purity: 99.9%
Product Shape: Spooled
Diameter: 0.5mm
Length: 50m
Temper: Annealed
Coating: Silver Plated coated
CAS Number: 7440-50-8
UOM Code: 048-272-69
eachStarting at $212.61
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Cu-DHP Alloy Foil (Cu - DHP) Formula: Cu - DHP
Temper: Soft
Thickness: 0.55mm
Length 1: 25mm
Length 2: 25mm
Surface Finish: Mirror polished on one side
UOM Code: 040-884-60
eachStarting at $0.00
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Copper Powder Formula: Cu
Percentage Purity: 99.99%
Maximum Particle Size: 800µm
Weight: 10g
CAS Number: 7440-50-8
UOM Code: 819-024-59
eachStarting at $209.03
Discounts applied for volume purchases
