Copper Tin Alloy Wire (CuSn)

Copper Tin Alloy Wire (CuSn)
Copper Tin Alloy Wire (CuSn)
Copper Tin Alloy Wire (CuSn)
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Ranging from 0.08mm to 6mm

Steel conductor with a thin copper coating

Copper-clad steel (CCS) wire is a composite conductor with a steel core and an outer copper layer, combining the conductivity of copper with the mechanical strength of steel. This design leverages the skin effect, where high-frequency electrical signals travel along the conductor’s surface, ensuring effective signal transmission as long as the copper layer is sufficiently thick.

We manufacture CCS wires using two main manufacturing techniques:

  • Electroplating: where copper is uniformly deposited onto the steel core through an electrochemical process.
  • Cladding: where copper tape is continuously wrapped around the steel core, creating a strong bond.

Our CCS wire meets ASTM B452 standards and is available in diameters from 0.06mm to 12mm, with conductivity levels ranging from 15% to 40% IACS. The tensile strength can be adjusted by selecting low, medium, or high-carbon steel, depending on application needs. Additional processing, such as annealing, stranding, and plating, allows for further customization.

Typical Applications
  • Central conductor in communication cables
  • Shielding braids in telecom cables
  • Lead wires for electronic components
  • Stranded grounding wires and overhead railway electrification systems
  • Decorative or corrosion-resistant wiring for specialized applications
Specifications
Wire Type (strands/mm) Min. Elongation (%) Min. Tensile Strength (N/mm²) Diameter (mm) Direction of Lay Length of Lay (mm) DC Resistance at 20℃ (Ω/Km)
7×0.16 Copper Clad Steel Wire 1 750 0.480±0.015 S 10-14 ≤317
7×0.18 Copper Clad Steel Wire 1 750 0.54±0.02 S 7-9 ≤250
19×0.12 Copper Clad Steel Wire 1 750 0.61±0.03 S 10-14 ≤203
19×0.18 Copper Clad Steel Wire 1 750 0.91±0.05 S 10-14 ≤87.8
64×0.10 Copper Clad Steel Wire 1 770 0.92±0.04 S 18-22 ≤94
Options of Custom Secondary Processing
Wire Drawing Wire Stranding/Multi-Wire Processing Wire Plating
Can be drawn down to 0.02mm Stranded Wires, Parallel Multi Wires Bare Wire, Tin Plating, Silver Plating, Nickel Plating, Copper Plating
Enameling:
Polyurethane QA(UEW), 155/180℃
Polyester QZ(PEW), 130/155℃
Polyesterimide QZY(EIW), 180℃
Polyamideimide QXY(AIW), 200/220℃
Features
  • Lighter than solid copper while maintaining high tensile strength, which makes it a cost-efficient alternative.
  • Suitable for applications requiring both electrical conductivity and mechanical durability.
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