Copper Clad Aliminum Flat Wire
Copper Aluminum Composite Flat Wire
Unique composite properties, copper aluminum interface for metallurgical bonding, high product performance, while with copper conductivity and low aluminum density characteristics.
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Copper Aluminum Composite Flat Wire
Product Introduce
Product Use
Product Performance
Technical Parameter
Product Introduce

Copper-aluminum composite flat wire is a bimetallic conductive flat wire covered by copper-aluminum, which is a "new conductor material". It not only has excellent conductive properties of copper, but also has the characteristics of low density of aluminum. It is a "strategic emerging industry" supported by China.
The copper-aluminum composite flat wire produced by our company is different from the traditional production processes such as hydrostatic extrusion, rolling pressing, cladding welding, casing rolling and other traditional processes, and adopts the original "horizontal continuous casting and efficient molding - rolling" technology to make the copper-aluminum composite flat wire interface reach a certain metallurgical combination and enhance the shear strength of the interface of the two metals. Ensure the mechanical and electrical properties of the product, improve the stability of the product.

Product Use

1. Electrical equipment manufacturing: mainly including low voltage, medium voltage, high voltage power distribution, busbar system, rectifier, motor winding, etc.;
2. Crane rail supply system, vacuum switchgear, generator set, substation, bimetallic connector in aluminum foil wound transformer, etc.;
3. Wind power, solar photovoltaic field: mainly including reactor, inverter, etc.;
4. Railway, aerospace, high-speed ferry, etc.

Product Performance

1. Unique composite properties, copper-aluminum interface is metallurgical bonding, product performance is high, and it has the characteristics of copper conductivity and low aluminum density;
2. High interface bonding strength, excellent conductivity, excellent mechanical processing performance;
3. The copper layer thickness is large and adjustable, suitable for transmitting large currents;
4. Light weight, convenient transportation and installation;
5. Obvious economic benefits: saving copper resources and reducing production costs.

Technical Parameter
Flat Line Straight Dimension Allowable Deviation Reference Table
Opposite Margin Dimensions /mm Permissible Deviation
Higher Level Normal
>8.25~10 0.01 0.02
>1.0~3.0 0.015 0.03
>3.0~6.0 0.02 0.03
>6.0~10.0 0.03 0.05
>10.0~15.0 0.07 0.1
Reference Table of Physical Properties of Round Rod at Room Temperature
Volume Ratio of Coating Layer/% Opposite Edge Distance/mm Status Density(g/cm3) Tensile Strength/MPa Elongation/% Maximum DC Resistivity(Ω·mm2/m) Volume conductivity is not less than(%IACS)
20 0.5~15 Hard Y 3.94 ≥ 160 ≥ 1.0 0.02596 66.4
Soft State R ≥ 110 ≥ 12 0.0255 67.6
25 0.5~15 Hard Y 4.25 ≥ 170 ≥ 1.5 0.02548 67.7
Soft State R ≥ 115 ≥ 13 0.02498 69
30 0.5~15 Hard Y 4.56 ≥ 180 ≥ 2 0.02477 69.6
Soft State R ≥ 120 ≥ 14 0.02424 71.1
Flat Wire Coil Weight Reference Table
Opposite Margin Dimensions /mm Permissible Deviation
Higher Level Normal
0.5~1.0 10±1 8±1
>1.0~3.0 22±2 20±2
>3.0~5.0 25±3、40±4 22±3、30±3
>5.0 70±5 50±5