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Top 5 Copper Alloys for Precision Machining: Unlocking the Full Potential of Copper

Copper is renowned for its excellent electrical conductivity, corrosion resistance, and ductility. However, not all copper is created equal when it comes to machining. In this blog post, we will explore the top 5 copper alloys that offer the best balance of machinability, mechanical properties, and cost-effectiveness for a wide range of applications.

1. C11000 Electrolytic Tough Pitch (ETP) Copper

C11000 ETP Copper is the most commonly used copper alloy for general-purpose electrical applications. With a purity level of 99.9%, it offers excellent electrical and thermal conductivity. Its machinability rating is around 20%, making it suitable for simple machining operations and forming processes.

Applications:Electrical wiring, busbars, heat exchangers, and transformer windings.

2. C14500 Tellurium Copper

C14500 Tellurium Copper, also known as free-machining copper, is an alloy that contains small amounts of tellurium. This addition significantly improves its machinability, with a rating of around 85%. It retains good electrical conductivity, making it ideal for applications requiring intricate machining without compromising on electrical performance.

Applications:Electrical connectors, switchgear components, and intricate parts for the electronics industry.

3. C17200 Beryllium Copper

C17200 Beryllium Copper is a high-strength, high-conductivity copper alloy that contains around 1.8% beryllium. This alloy offers excellent machinability, with a rating of around 50%. It also has outstanding mechanical properties, including high fatigue strength and wear resistance.

Applications:Aerospace components, electrical contacts, and non-sparking tools for hazardous environments.

4. C18200 Chromium Copper

C18200 Chromium Copper is a heat-treatable copper alloy that contains around 1% chromium. This alloy offers good machinability, with a rating of around 40%. It has high strength, excellent wear resistance, and good electrical conductivity, making it an ideal choice for applications that require both mechanical strength and electrical performance.

Applications:Resistance welding electrodes, electrical contacts, and heavy-duty electrical components.

5. C93200 Bearing Bronze

C93200 Bearing Bronze, also known as SAE 660, is a popular alloy for bearings and bushings. It contains 83% copper, 7% tin, and 7% lead, with the remaining elements being zinc and other trace elements. This alloy offers good machinability, with a rating of around 70%. It has excellent wear resistance and is suitable for applications that require low friction and long-lasting performance.

Applications:Bearings, bushings, and wear plates in heavy machinery and equipment.

In conclusion, the best copper alloy for machining depends on the specific requirements of your application. By selecting the right alloy, you can unlock the full potential of copper and achieve the perfect balance of machinability, mechanical properties, and cost-effectiveness.

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.

PARTNERSHIP BRANDS WE ARE SUPPORTING

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

METAL AND PLASTIC CNC MACHINING MATERIALS

CNC Brass Machining

Brass

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

Copper

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

Aluminum

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

Titanium

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

Plastic

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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