What is a copper-clad aluminum strip?

A copper-clad aluminum strip is a bimetallic material combining a layer of copper with an aluminum base, offering the excellent conductivity of copper and the lightweight, cost-effective properties of aluminum. It is commonly used in electrical and electronic applications.

What are the typical materials used in Chalco's copper-clad aluminum strips?

Chalco's copper-clad aluminum strips typically use C11000 copper and 1060 aluminum. Custom material combinations are available upon request.

What are the specifications of Chalco's copper-clad aluminum strips?

Chalco offers copper-clad aluminum strips with thicknesses ranging from 0.3mm to 20.0mm, widths up to 1000mm (standard: 10–950mm), and maximum coil weights up to 5 tons. The copper layer ratio ranges from 10% to 30%, and bonding strength exceeds 40 MPa between copper and aluminum.

What types of copper-clad aluminum strips does Chalco provide?

Chalco provides various types of copper-clad aluminum strips, including two-layer, three-layer, fully clad, inlay, and edge inlay configurations.

What surface finishes are available for Chalco's copper-clad aluminum strips?

Available surface finishes include black, galvanized, oiled, and pickled, catering to different application requirements.

What are the applications of copper-clad aluminum strips?

Copper-clad aluminum strips are widely used in electrical power distribution, electronics, battery components, and other fields requiring reliable copper-aluminum connections.

Copper Clad Aluminum Strip | Chalco Aluminum

Copper clad aluminum strip combines the excellent conductivity and heat dissipation of copper with the lightweight, cost-effective benefits of aluminum.

Using advanced composite technology, it delivers strong bonding and stable performance. Widely used in cables, batteries, electric vehicles, and LED lighting, it offers a highly efficient and economical solution for conductive applications.

Copper clad aluminum strip

Copper clad aluminum strip specifications

Compliant with GB/T5231, GB/T1527, ASTM B694-01, ASTM B152M, and ASTM B248/B248M standards.

Certified by ISO 9001, ISO 14001, RoHS, and UL for quality, environmental, and safety assurance.

We offer free samples and mill test certificates to help you verify product quality before purchase with confidence. Quick Quote

Copper clad aluminum strip product details

Typical materials: C11000 copper + 1060 aluminum (customizable upon request)
Copper layer ratio: 10% to 30%
Types: two-layer, three-layer, fully clad, inlay, and edge inlay
Thickness range: 0.3mm to 20.0mm
Width range: up to 1000mm (standard: 10–950mm)
Max coil weight: up to 5 tons
Bonding strength: > 40 MPa between copper and aluminum
Surface finishes: black, galvanized, oiled, pickled
Manufacturing methods: continuous casting and rolling, cold rolling, electrolytic process
Processing services: bending, welding, decoiling (slitting)

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Advantages of copper clad aluminum strip

High bonding strength: Copper and aluminum are tightly bonded using patented technology to ensure strong adhesion and prevent delamination.
Excellent conductivity: The copper layer provides outstanding electrical conductivity for efficient power transmission.
Low contact resistance: Optimized composite structure reduces resistance between copper and aluminum, improving current flow.
Strong impact resistance: Designed to withstand high-frequency impacts without damage.
Cost-effective: Combines the benefits of copper and aluminum to significantly reduce material costs.
Stable quality: Strict quality control ensures long-term performance and consistency.
Lightweight: Aluminum's low density makes it ideal for applications requiring weight reduction.
Corrosion resistance: Treated surfaces enhance durability in harsh environments.
Improved energy efficiency: The copper-aluminum combination reduces weight while boosting energy transfer efficiency.

Applications of copper clad aluminum strip

Copper clad aluminum strip is widely used in LED lighting, high-power power supplies, automotive systems, electrical equipment, electronics, medical devices, and industrial machinery.

We offer custom solutions based on your specific application needs—feel free to contact us anytime to discuss your project. Quick Quote

Lithium battery modules

Chalco's copper clad aluminum strip offers a reliable solution for connecting the positive and negative terminals in lithium battery packs.

LED heat dissipation

With a thermoelectric separation design, it greatly improves heat dissipation for high-power LED chips, especially in 100W–1000W LED lighting products.

Cable connectors

Copper clad aluminum strip is widely used in cable plugs, providing excellent conductivity and stable connection performance.

Circuit boards (PCB, FPC, LED)

It is also extensively applied in PCBs, flexible circuits, and LED boards to enhance conductivity while reducing material costs.

Copper clad aluminum strip process: continuous cast-rolling technology

The cast-rolling process is a cutting-edge innovation in copper clad aluminum strip production. It directly casts molten aluminum onto copper, forming a strong metallurgical bond between the two metals.

Compared to traditional cold rolling, this method significantly enhances bonding strength, reduces brittle intermetallic compounds, and greatly improves conductivity, thermal performance, and mechanical stability.

This process supports various structures such as single-sided, double-sided, or partially clad copper surfaces. It provides a more reliable copper-aluminum connection for high-performance applications like lithium batteries, electric vehicles, and circuit connectors.

With 100% copper-aluminum contact, the material outperforms conventional cold-rolled composites in electrical, thermal, and structural performance—marking a major advancement in modern bimetallic technology.

continuous cast-rolling technology

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Why choose us

Chalco is a manufacturing and international trading group with over 10 years of experience in copper, aluminum, and composite materials.

We specialize in delivering high-quality, cost-effective copper clad aluminum and copper-steel composite products.

Equipped with our own laboratory and professional testing team, we carry out strict inspections after every production stage. Before delivery, we provide both paper and digital quality certificates.

Additional testing can be arranged based on your specific requirements.

We offer OEM services, full customization of materials and sizes, and fast delivery. Our team can also produce according to your drawings or samples.

With advanced equipment and a well-established quality control system, we ensure stable performance and long-term reliability—making us a trusted partner for your business. Quick Quote

capability

Packaging and shipping of copper clad aluminum strip

We use moisture-proof and rust-resistant packaging for every coil, wrapping each roll in waterproof film and securing it with fumigation-free wooden pallets to ensure safe and damage-free transport.

For high-end or export orders, we offer customized packaging options such as reinforced wooden crates, steel strapping, and labeled tagging based on your requirements.

We support sea freight, air freight, and multimodal transport. Our experienced logistics team will tailor the most efficient shipping plan according to your delivery timeline and destination—ensuring your products arrive safely, on time, and hassle-free.

Packaging and shipping

Copper vs aluminum vs copper clad aluminum – comparison

Item	Pure Copper	Pure Aluminum	Copper Clad Aluminum
Conductivity	Excellent	Good	Close to pure copper
Cost	High	Low	Significantly lower than pure copper
Weight	Heavy	Light	Light
Workability	Easy to process	Moderate	Easy to process
Typical Uses	High-end electrical	Cost-sensitive projects	General applications like cables, batteries, and LEDs

Applications of copper clad aluminum strip

Copper clad aluminum strip material overview

Copper Grades

We offer a wide range of copper materials, including high-purity copper, oxygen-free copper, phosphorus-deoxidized copper, brass, tin bronze, and beryllium copper. Common grades include:

High-conductivity copper: T1, T2, C10100, C10200, C11000, TU1, TU2
Phosphorus-deoxidized / oxygen-free copper: TP1, TP2, C12000, C12200
Precision alloy copper: C14500 (free-cutting copper), C17200 (beryllium copper), C44300–C44500 (naval brass), C71500 (copper-nickel alloy)
Other specialty coppers: C26000, C27400, C63020, C68700

Aluminum Grades

The aluminum base layer typically uses high-purity or high-conductivity aluminum to ensure a balance of light weight and performance. Common grades include:

High-purity aluminum: 1050, 1060, 1070, 1100
Structural aluminum alloys: 3003, 5052, 6061 (customizable upon request)