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Maximizing Efficiency: Exploring the Machinability of C145 Copper

Copper has been a go-to material for various industries for centuries, thanks to its excellent electrical conductivity, thermal properties, and ductility. Among the various copper alloys, C145 copper, also known as tellurium copper, has gained significant attention for its improved machinability. In this blog post, we will delve into the world of C145 copper, its properties, and how industries can benefit from its machinability.

What is C145 Copper?

C145 copper is a free-machining copper alloy with a small addition of tellurium (Te) that substantially improves its machinability without compromising its electrical and thermal conductivity. The presence of tellurium creates chip-breaking formations, which allow for faster machining speeds and reduced tool wear.

Benefits of C145 Copper Machinability


1. Increased Productivity

The machinability of C145 copper allows for higher cutting speeds and feeds, resulting in shorter production times. This increased productivity is essential for industries where time is a critical factor, such as automotive, aerospace, and electronics.


2. Improved Surface Finish

The chip-breaking formations in C145 copper contribute to a superior surface finish, reducing the need for secondary operations like grinding or polishing. This not only saves time but also reduces overall production costs.


3. Reduced Tool Wear

The improved machinability of C145 copper results in less friction and heat generation during the machining process, which in turn leads to reduced tool wear. This means that industries can expect longer tool life and lower tooling costs.


4. Excellent Material Properties

Despite its enhanced machinability, C145 copper retains the desirable properties of pure copper, such as high electrical and thermal conductivity, good corrosion resistance, and ductility. This makes it suitable for a wide range of applications, including electrical connectors, switches, and fasteners.

Applications of C145 Copper

The machinability of C145 copper, combined with its excellent material properties, makes it a popular choice for various industries. Some common applications include:

Electrical connectors and terminals

Switches and relays

Fasteners and fittings

Gears and bushings

Welding torch tips


C145 copper offers a unique combination of machinability and material properties that make it a valuable asset for industries looking to maximize efficiency and reduce production costs. By understanding the benefits and applications of this versatile alloy, businesses can make informed decisions about incorporating C145 copper into their manufacturing processes.

CNC Copper Machining

CNC Machining Copper Material is good electrical conductivity, thermal conductivity, it is soft and good for machining as it has high plasticity, it is easily and rapidly to carry out desired shape as machining cutter can run faster than other steel materials, and also reach high precision.

Copper has a shiny reddish-orange finish, which varies slightly based on the surface finish method. Copper can be media-blasted and polished to achieve many different cosmetic surface finishes.

CNC Machining Copper Parts are widely used in the manufacture of electrical wires, cables, electric brushes, electric spark, and other electrical devices and products.

CNC Copper Machining

Benefits of CNC Copper Machining

1/ CNC Machining Copper Parts are excellent in electricity conductivity, supporting very good electric function

2/ CNC Machining Copper Parts are soft, easy to design into different shape, also suitable for many processes

3/ Copper is easy for cutting and machining, its production efficiency is much higher than steel series

4/ Good propriety for bending and shaping

5/ Heat transferring function very good, high resistance, temperature stability, long durable using

6/ Stable surface, non-surface treatment is durable, electroplating is also used on copper parts

CNC Copper Machining

Composition And Property of CNC Machining Copper

Copper Property Alloy Type Content Melting Point Hardness Tensile Strength Density
Cu-based Zn, Sn, Si, Al, Ni 1083°C HB35-45 Low 8.9 g/cm3

Common Materials Code of CNC Machining Copper

Copper Alloy Workable Processes Surface Finishing for Copper Parts Materials Code
CNC Turning, CNC Milling, CNC Drilling, Molding, Forging, Fabrication, Welding, etc. Passivation, Anodizing, Plating, Chemical Polishing, etc. Copper 110
Copper 101
Copper 145
other more Copper Alloy

Asianstar: Professional CNC Machining Supplier

From year of 2005, Asianstar Company establish the CNC Machining Factory in Guangdong Province, China.
We mostly provide CNC Turning, Milling, Drilling, Grinding, and Multi Machining processes service on various materials.
With the Belief of becoming a key supplier in the supply-chain of Precision Components, we strictly control our product quality, keep high precision on our components production, buildup the whole-process QC System and submit the satisfaction for every order.
By long term development, we have buildup partnership with world-wide clients, supporting our partners in Designing, Optimizing, Producing and Testing on each type of components.


Advantages of Asianstar CNC Copper Machining

Strong Facilities

Asianstar many CNC and stamp machines allow us to produce various copper parts, different sizes, and structures are all well done by suitable solution

Long-term Skills

Asianstar professional engineers team has experience from year 2005, producing copper parts for world wide electric products

Stable Quality

Asianstar QC system and QC tools guarantee our products are perfect result. We have procedures to control copper parts quality during production

Competitive Price

Asianstar aim to buildup partnership with clients, always choose best suitable facilities to carry out the components in competitive prices


CNC Brass Machining


CNC Machining Brass material is used for wide range components, we support clients to produce a variety of parts such as gears, locks, electronics, pipe fittings, etc.

CNC Copper Machining


CNC Machining Copper material is soft and easy to machining on different shape of components. We mostly produce copper components for electric devices by machining and stamping

CNC Aluminum Machining


CNC Machining Aluminum materials is one of our most used materials. We support clients to turning, drilling or milling on aluminum material from size 0.5mm to 470mm

CNC Stainless Steel Machining

Stainless Steel

CNC Machining Stainless Steel are common material for wide range components, we produce Stainless Steel turning parts, milling parts, high smoothness components, etc.

CNC Titanium Machining


CNC Machining Titanium material brings components superb features, we use titanium to produce high precision work-piece for clients from aircraft, aerospace, medical devices

CNC Plastic Machining


Our CNC Machining Plastic materials includes ABS, HDPE, LDPE, Nylon, POM, Peek, Polycarbonate, etc. We produce them in high precision and high smoothness.


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    Yes, we support ODM/OEM, we provide custom-made service for clients or even support clients on designing or improving

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