Copper Clad Aluminum Conductors
Copper-Clad Aluminum Round Wire
CCA round wire combines an aluminum core with copper cladding for lightweight conductor designs. Select diameter and copper content around the required resistance and connection method. For signal cables, include the operating frequency and cable construction in the specification.

Construction and specification
- Material construction
- Aluminum core with copper cladding; specify the layer ratio and its mass or volume basis
- Product form
- Round wire
- Diameter range /
- Φ 0.1–4.0 mm
- Dimensional tolerance /
- ±0.005 mm
Selection and processing
Diameter, copper ratio and mechanical condition describe the conductor; cable frequency, pair or coaxial geometry and terminals describe the finished application. An Ethernet or PoE design needs its specified cable/category requirements and assembled-cable tests.
Standards context
ASTM B566-04a(2025): bare round CCA wire; agree class and test requirements. A reference is not product certification.
Standards scope referencesProduct questions
What applications are relevant for CCA Round Wire?
CCA Round Wire is relevant for CATV coaxial cable, Ethernet cable evaluation, Communication conductors, Lightweight wiring and related engineered conductor applications where the material tradeoff is validated.
What information should be included in an RFQ for CCA Round Wire?
Include product form, dimensions, material ratio or layer requirement, target conductivity or strength, application environment, annual demand, packaging and any test or certification requirement.
Prepare your inquiry
- Bare conductor diameter, tolerance and finished diameter if coated or insulated
- Temper, required resistance and termination
- Core and outer-layer metals, each layer or ratio, and mass or volume basis
- Surface finish or coating, joining method and inspection requirements
- Quantity, spool or coil format, packaging and delivery destination