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China manufacturer
copper ball The main
differences between a copper ball and a brass ball lie in their material
compositions, physical properties, and application scenarios. The following
is a comparative summary based on authoritative public information:
1. Material composition Copper ball: Made of high-purity copper (usually T2
violet copper), the main component is copper, with a copper content of
≥99.9%.
Brass ball: Made of copper-zinc alloy (such as H62, H65), typically
containing 62% to 65% copper, with the balance being zinc and other trace
elements.
2. Appearance and color: Copper ball: It is purple-red (commonly known as
"red copper") and has a typical metallic luster.
Brass ball: It is yellow or light golden in color, with the hue varying
according to the copper content - the higher the copper content, the more
reddish it tends to be, and the lower the copper content, the more yellowish
it tends to be.
3. Performance Characteristics
| Performance |
Copper Ball
|
Brass Ball |
| Conductivity |
Extremely high
(second only to silver) |
Lower (about 25% to 30% of copper)
|
| Thermal Conductivity： |
Excellent |
Good，significantly lower than copper
|
| Mechanical Strength |
Relatively soft, prone to
deformation |
Higher，with good wear resistance
|
| Processability |
Good ductility, easy to shape |
Better cutting performance, suitable for
precision machining |
| Corrosion Resistance |
Forms a stable oxide film (verdigris) in the atmosphere |
Better resistance to seawater corrosion,
but may undergo dezincification in acidic environments (requires DZR
brass) |
|
Cost |
Higher |
More economical |
4. Typical Application Scenarios
Copper Ball Application Scenarios:
Electrical connectors, battery terminals, medical devices (due to
biocompatibility), thermal management systems (such as heat dissipation
components), laboratory high-purity equipment, and brass balls are suitable
for the following scenarios:
Valves, bearings, water pump parts, musical equipment (such as tuning
devices due to their good acoustic performance), decorative parts (due to
their golden appearance), automotive and marine industrial components, etc.
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Brass ball also could be with hole,
hole ball, hollow ball
Drilled ball
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