Silver-plated Copper-clad Steel Wire (SCCS)

Silver-plated Copper-clad Steel Wire

Silver plated copper-clad steel wire is a composite wire consisting of a steel core wire, a copper layer, and a silver layer. It combines the high strength of steel, the conductivity of copper, and the corrosion resistance and high conductivity of silver, and is widely used in high-frequency signal transmission, high temperature, and high reliability scenarios.

Core Structure

Steel core: Composed of multiple stranded soft steel wires, providing mechanical strength.
Copper layer: Covering the steel core through electroplating or coating processes to enhance conductivity.
Silver layer: Silver plating on the surface to optimize high-frequency conductivity.

Manufacturing Process

Pre treatment: Degreasing, rust removal, and activation of the steel core to ensure surface cleanliness.
Copper plating: Pre nickel plating or displacement plating processes are used to enhance adhesion, followed by electroplating a copper layer.
Annealing and Drawing: After annealing and softening, draw to the target wire diameter to optimize the uniformity of the copper layer.
Silver plating: Electroplated silver plating.

Silver-plated Copper-clad Steel Wire List

Diameter	Ag Content	Tolerance	Elongation	Tensile Strength
0.92 mm	1.25%	±0.015 mm	≥10%	≥352 N/mm2
0.93 mm	1.25%	±0.015 mm	≥10%	≥352 N/mm2
0.94 mm	1.25%	±0.015 mm	≥10%	≥352 N/mm2
0.80 mm	1.25%	±0.01 mm	≥10%	≥352 N/mm2
0.51 mm	2%	±0.01 mm	≥10%	≥352 N/mm2
0.29 mm	0.5%	±0.01 mm	≥10%	≥352 N/mm2
0.20 mm	3.5%	±0.05 mm	≥10%	≥352 N/mm2
0.10 mm	6.1%	±0.03 mm	≥10%	≥352 N/mm2
0.17 mm	4%	±0.05 mm	≥10%	≥352 N/mm2

Silver-plated Copper-clad Steel Wire Application

Silver plated copper-clad steel wire has advantages such as higher high-frequency conductivity than pure copper, lower overall cost (compared to pure silver wire), and higher mechanical strength. It can be widely used as a connecting wire inside computers, a conductor in the electronic power industry, a wire in the communication industry, as well as in aerospace, military products, and other high-temperature resistant wires. Specifically, as follows:

Communication and Electronics

5G base stations and RF cables: Low loss high-frequency signal transmission, used for coaxial cable cores and grounding wires.
High speed data transmission: such as internal connection lines of servers, reducing signal delay.

New Energy Vehicles

Battery management system: resistant to high temperature and corrosion, ensuring the stability of high-voltage lines.
Aerospace and military industry: Satellite communication cables: resistant to high and low temperature cycles, suitable for extreme environments.
Radar system: high reliability requirement scenario, reducing signal attenuation.

Electricity and Industry

Transformer grounding wire: with better conductivity than pure copper and lower cost.
Radial tire steel cord: Combining high strength and corrosion resistance to enhance tire life.

Medical Equipment

MRI coil: Combining biocompatibility and high conductivity to ensure imaging accuracy.