- Materials
- Forms
-
Services
-
Services
-
-
Sectors
-
Supporting cutting edge research and development with advanced materials to your needs.
High performance materials for extreme conditions.
Innovative and lightweight materials with high mechanical properties and durability.
Materials used in chemical engineering from consumables to innovative solutions.
Advanced materials characterized by high electrical or insulation performance.
High quality materials for renewable energy.
Biocompatible and biodegradable materials to the highest standards.
High purity, biocompatible materials for high performance devices and applications.
High purity metals and alloys in various forms and crucibles suitable to your needs.
State of the art materials for the next generation of technologies.
High performance materials for extreme conditions.
Durable materials for corrosive environments.
Foils, disks or windows across a range of materials to facilitate your innovation.
Polymers, metal foils, and sustainable materials for your packaging needs.
Your requirements for unique products and attributes will be met across our 170,000+ product range and customization capabilities.
High-quality materials across branded products in various forms including rods, wires, and foils support space technology needs.
Highest quality materials to support your need for small-quantity specialist materials such as graphite and lithium compounds.
High purity materials to improve the reproducibility and reliability of your evaporation processes.
Academia Aerospace & Aeronautical Automotive Chemical Manufacturing Electronics and Bioelectronics Fuel Cells & Hydrogen Life Science and Biomaterials Storage & Batteries Vacuum Technology Mining and Metals Nanomaterials Nuclear Oil & Gas Optics Packaging Research & Labs Space Technology Medical Devices
-
-
Resources
-
Find out our latest news.
Read our latest insights, and opinions.
Discover our Innovation Discovered podcasts on innovation, products, interesting topics, and more.
Find out how we've worked with our partners
Our latest updates on what we are doing, find out more.
Find out more about us and the great roles we have available for talented individuals. Find out more.
Take a look at our global distributors.
Explore our FAQ resource to help answer your key questions.
Gain a clearer picture of the language used in scientific study
-
- About Us
Toggle Nav
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
-
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 -
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
Discounts applied for volume purchases -
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
eachStarting at $135.53
Discounts applied for volume purchases -
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
Discounts applied for volume purchases -
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
Discounts applied for volume purchases -
Copper Foil
Formula: Cu
CAS Number: 7440-50-8eachStarting at $235.56
Discounts applied for volume purchases
