Beryllium copper, often referred to as beryllium bronze or copper beryllium, is a copper alloy containing a small amount of beryllium. This blend results in a flexible, high-performance material perfect for various CNC machining applications. In this blog, we'll delve into the distinct properties of beryllium copper and uncover its uses in the realm of CNC machining.

Material Properties of Beryllium Copper

High Strength and Hardness

Beryllium copper exhibits exceptional strength and hardness, rivaling the properties of certain steel alloys. This characteristic makes it an appealing choice for durable and wear resistance components.

Excellent Electrical and Thermal Conductivity

This copper alloy provides excellent electrical and thermal conductivity, making it ideal for applications that necessitate efficient heat transfer or electrical signal transmission.

Corrosion Resistance

Beryllium copper demonstrates corrosion resistance, making it perfect for challenging environments or applications where the material will be exposed to various chemicals.

Non-sparking and Non-magnetic

Beryllium copper's non-sparking and non-magnetic properties make it a preferred material for hazardous environments or applications involving strong magnetic fields.

Benefits of CNC Machining Beryllium Copper

Precision and Complex Geometries

CNC machining offers unparalleled precision, allowing the creation of intricate components with tight tolerances. Beryllium copper's machinability ensures that complex shapes and geometries can easily be crafted.

Consistent Quality

CNC machining processes provide consistent quality, ensuring that every beryllium copper component meets the required specifications and standards.


CNC machining beryllium copper is a cost-effective solution for producing high-quality components. The process yields minimal waste and reduces labor costs, making it an attractive choice for large-scale production.

Applications of CNC Machined Beryllium Copper Components

Aerospace and Defense

Beryllium copper's strength, corrosion resistance, and non-magnetic properties make it a popular choice for aerospace and defense applications. Components such as bearings, bushings, and connectors can be found in aircraft and military equipment.

Electronics and Telecommunications

Beryllium copper's excellent electrical and thermal conductivity makes it ideal for electronic and telecommunications components. Examples include electrical contacts, connectors, and heat sinks.

Oil and Gas Industry

Beryllium copper's non-sparking and corrosion-resistant features make it ideal for use in the oil and gas sector. CNC machining techniques can be employed to create components such as valves, fittings, and drilling parts.

Automotive Industry

In the automotive field, beryllium copper is frequently used for components that demand high strength, wear resistance, and conductivity. Examples include transmission parts, sensor casings, and electrical connectors.

Selecting the Right Beryllium Copper Alloy

Selecting the Right Beryllium Copper Alloy - Exploring the World of CNC Machining Beryllium Copper Material Properties and Applications-min (1)

Alloy 25 (C17200)

Alloy 25, also referred to as C17200, is the most widely used beryllium copper alloy in CNC machining. It boasts high strength, exceptional conductivity, and reliable corrosion resistance, making it suitable for various applications.

Alloy 165 (C17000)

Alloy 165, or C17000, is an alloy with a lower beryllium content that strikes a balance between strength, conductivity, and machinability. It's perfect for applications that call for moderate strength and dependable electrical conductivity.

Alloy 10 (C17510)

Alloy 10, also known as C17510, offers high thermal conductivity and excellent strength. This alloy is popular for applications requiring efficient heat transfer and reliable performance.

Surface Finishing Options for CNC Machined Beryllium Copper Components

Surface Finishing Options for CNC Machined Beryllium Copper Components - Exploring the World of CNC Machining Beryllium Copper Material Properties and Applications-min


Plating involves applying a thin layer of metal, such as gold or nickel, onto the beryllium copper component. This process enhances the part's appearance, corrosion resistance, and wear resistance.


Passivation is a chemical process that increases the corrosion resistance of beryllium copper by creating a protective oxide layer on the surface. This treatment is especially beneficial for components used in corrosive environments.


Anodizing is an electrochemical process that increases the thickness of the natural oxide layer on the surface of beryllium copper components. This treatment improves corrosion resistance and provides an attractive, uniform finish.

Safety Considerations When Machining Beryllium Copper

Proper Ventilation and Dust Collection

Proper Ventilation and Dust Collection - Exploring the World of CNC Machining Beryllium Copper Material Properties and Applications-min

Ensuring proper ventilation and dust collection is essential to minimize the risk of inhaling beryllium particles when CNC machining beryllium copper. Prolonged exposure to beryllium dust can lead to health issues, including chronic beryllium disease.

Personal Protective Equipment (PPE)

Donning appropriate personal protective equipment, such as gloves, safety goggles, and respiratory masks, is vital when handling or CNC machining beryllium copper to minimize exposure risks.


CNC machining beryllium copper presents numerous benefits thanks to its distinct material properties and extensive application range. Spanning industries like aerospace, defense, electronics, and telecommunications, this versatile alloy can support various sectors by delivering components with impressive strength, exceptional conductivity, and corrosion resistance.

By familiarizing yourself with the various beryllium copper alloys and available surface finishing options, you can make a well-informed decision for your upcoming CNC machining beryllium copper project. Always prioritize safety precautions when working with this material to ensure both a successful and secure production process.