Copper-clad steel wire (CCS) is a bimetallic composite wire, which uses the respective
Advantages, made through a special production process.
First, let’s discuss the structure of copper clad steel wire.
Copper-clad steel wire is a steel wire as the core and a layer of copper on the surface.
Copper-clad steel wire has both the mechanical properties of steel and the electrical properties of copper.
Mechanical properties of steel: 1. High strength 2. Resistance to high temperature softening
Electrical properties of copper: 1. High electrical conductivity 2. Small contact resistance
Therefore, copper clad steel has the following characteristics:
Firstly, High conduction efficiency
Secondly, Low material cost
Thirdly, High tensile breaking force
Fourthly, Light weight
Lastly, Wear resistance
Copper-clad steel wire has three types according to conductivity:
21%IACS, 30%IACS and 40%IACS (IACS International Standard Conductivity of Annealed Copper).
Copper-clad steel wire has soft state (A), hard state (HS) and extra-hard state (EHS) according to mechanical properties (annealed state).
After further processing, the copper-clad steel wire can process into silver-plated copper-clad steel wire, tin-plated copper-clad steel wire or lead-plated alloy copper-clad steel wire.
Performance characteristics of copper clad steel wire
Copper-clad steel wire has become an ideal wire in the communication, electric power, and electronic industries.
The thicker the copper layer coated on the steel surface, the higher the DC conductivity.
Because copper-clad steel wire has superior strength, good electrical conductivity and weldability, and is convenient for automatic operation, it is also widely used as the lead wire of electronic components.
Then, let us talk the advantages of copper clad steel wire compared with pure copper wire.
First, copper-clad steel wires attenuate less than pure copper wires at high frequencies.
At high frequency, the transmission loss is small and the transmission efficiency is high.
The electrical performance index fully meets the needs of the CATV system.
Attenuation, return loss, characteristic impedance and other performance indicators are not lower than pure copper core cables.
Second, under the same section and state (such as hard state), the mechanical strength of copper-clad steel wire is 2 times that of solid copper wire. It can withstand large impact and load. It has high reliability and anti-fatigue performance when used in places with harsh environments and frequent movements. Long service life.
Third, copper-clad steel wire can be made into wires with different electrical conductivity and tensile strength. That properties include almost all copper alloys (such as Cu-Zn, Cu-Be, Cu-Be-Co, Cu-Cr etc.) mechanical and electrical properties.
Finally, the copper-clad steel wire uses steel instead of copper to reduce the cost of the wire.
This greatly reduces the consumption of copper, meeting the needs of a resource-saving society.
Especially in the current situation where the price of copper has risen sharply, the price of pure copper cables continues to rise, and the use of copper-clad steel wire products can reduce costs.
Copper-clad steel wire cables are lighter in weight than cables with the same structure, and can also reduce transportation and installation costs.