CNC Machining in Copper

Copper is a known for its excellent electrical conductivity, thermal conductivity, and corrosion resistance. It is widely utilized in various industries and applications.

Advantages of Copper

Copper is a highly conductive and malleable metal. Its excellent electrical conductivity and corrosion resistance make it crucial in electrical wiring, plumbing, and electronics.

Key Features

Recyclability and Sustainability

Malleability and Ductility

High Thermal Conductivity

High electrical conductivity

Available Copper Specifications

The following table shows common copper alloys. If you have any other alloy requirements, please contact us.

Copper C101

Tensile Strength

Elongation at Break

Hardness

Density

43,000 – 52,000 PSI

3 – 16%

Rockwell 30T 54 – 62

0.323 lb/in³
(8.94 g/cm³)

Copper C102

Tensile Strength

Elongation at Break

Hardness

Density

43,000 – 52,000 PSI

3 – 16%

Rockwell 30T 54 – 62

0.323 lb/in³
(8.94 g/cm³)

Copper C110

Tensile Strength

Elongation at Break

Hardness

Density

43,000 – 52,000 PSI

3 – 16%

Rockwell 30T 54 – 62

0.322 lb/in³
(8.91 g/cm³)

Copper Surface Finishes

The following table shows common surface finishes for copper.

Bead Blast

Heat Treat

Electroless Nickel Plating

Polishing

Gold Plating

Silver Plating

Powder Coating

Brushing

Copper FAQs

What type of copper is most suitable for CNC machining?

Copper alloys are preferred in various electrical applications, including bus bars and wire connectors, due to their excellent electrical and thermal conductivity. The high purity of 101 copper ensures superior conductivity, while 110 copper is generally more cost-effective as it is easier to CNC machine. Copper beryllium (CuBe) offers a unique combination of high strength, non-magnetic properties, and non-sparking qualities, making it an excellent choice for CNC machining, forming, and general metalworking.
What are the main material properties of copper?

Copper has good thermal conductivity, electrical conductivity, and ductility. It also exhibits good corrosion resistance and weldability, making it widely used in machining processes.
Is machining copper challenging?

Machining pure copper in CNC processes can present significant challenges and requires specialized expertise due to its properties. However, improving machinability becomes more feasible by alloying copper with elements such as tin, silicon, zinc, aluminum, and nickel. This alteration of the material composition enhances machinability, making it more suitable for CNC machining operations.