Copper Clad Steel Conductors
Copper-Clad Steel Round Wire
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CCS round wire combines a steel core with copper cladding. Select the conductor by its tensile requirement, conductivity grade and copper-layer specification. For grounding, include fault-current duty and corrosion conditions; for signal cable, include frequency and cable construction.
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Construction and specification
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| Item | Specification |
|---|---|
| Material construction | Steel core with a copper outer layer |
| Product form | Round wire |
| Strength target | Specified by tensile strength, steel core and application load |
| Use environment | Grounding, cable, rail, connector or high-vibration signal use |
Specification design factors
Drawing-defined specification
Geometry and performance
- Diameter and ovality determine the metal section and fit in the finished assembly.
- Resistance depends on material, section, length and temperature.
- Temper and surface condition affect drawing, bending and joining.
Selection and processing
Separate signal-cable and grounding duty. The signal design sets frequency and attenuation/resistance requirements; the grounding design sets fault-current duration, joints and environmental exposure. Core grade, condition and copper layer govern the single wire.
Material and form references
ASTM B227-15(2024): hard-drawn bare round CCS wire; ASTM B452-22(2026): bare round CCS for electronic applications. Select the applicable grade, condition and purpose.
Standards and product formsProduct questions
What determines a round conductor’s electrical and forming behavior?
Metal construction, diameter and temper define the conductor section. Resistance varies with length and temperature. Surface condition, coating and any insulation affect joining and the finished assembly diameter.
Are single-wire strength and complete-strand breaking load the same specification?
No. Single-wire material properties and finished-conductor breaking load describe different specimens. Wire diameter, count, lay and connections define the assembled strand and its test record.
Which diameter belongs in the conductor specification?
Bare diameter and ovality describe the metal section. Coating or insulation adds to the finished diameter. Keep the electrical measurement length and temperature with the resistance value for that construction.
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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