Scrap Copper Wire

Name

Copper wire scrap (Millberry) 99.95%

Item

Standard (%)

Results(%)

Purity (%)

≥99.95

99.95

Carbon

0.03

0.03

Coblet

<0.001

0.0009

Iron

0.005

0.005

Phosphorus

<0.01

0.009

Sulphur

<0.01

0.009

Zinc

0.003

0.003

Cu+Ag:

Sn:

Zn:

Pb:

Ni:

Fe:

≥99.90

≤0.002

≤0.005

≤0.005

≤0.005

≤0.005

Sb:

S:

As:

Bi:

O:

Impurities：

≤0.002

≤0.005

≤0.002

≤0.001

≤0.06

≤0.1

Tensile strength

σb (MPa):

Elongation

δ10 (%):

Elongation

δ5 (%):

≥275

≥5

≥10

• Copper uses and application areas

     Power Industry:  

• Power transmission such as line cables, transformers, switches, plug components and connectors; motor manufacturing such as stators, rotors, shaft heads and hollow conductors; communication cables and residential electrical lines also require a large amount of copper wires.

Electronics industry:

Electric vacuum devices such as high-frequency and ultra-high-frequency launch tubes, transition tubes, magnetrons, etc., require high-purity oxygen-free copper and dispersion-strengthened oxygen-free copper. Copper printed circuits require large amounts of copper foil and copper-based soldering materials. In integrated circuits, copper is used as interconnects and lead frames instead of aluminum in silicon chips.

Energy and petrochemical industry:

The main condenser tube sheets and condenser tubes in thermal power plants in the energy industry are made of brass, bronze or cupronickel. Solar heaters are also often manufactured using copper tubing. Copper and many copper alloys in the petrochemical industry are widely used in the manufacture of various containers, piping systems, filters, pumps and valves, various evaporators, heat exchangers and condensers that are exposed to corrosive media.

Transportation industry：

In the shipbuilding industry, copper alloys include aluminum bronze, manganese bronze, aluminum brass, gun metal (tin-zinc bronze), white copper and nickel-copper alloy (Monel), etc., which are all standard materials for shipbuilding. In warships and merchant ships, copper and copper alloys are generally used as aluminum bronze propellers, bolts, condenser tubes, rivets, copper-containing coating paint, etc. In the automotive industry, copper and copper alloys are mainly used in radiators, brake system pipelines, hydraulic devices, gears, bearings, power distribution and power systems, brake pads, washers, and various joints, accessories and trims. Motors, rectifiers and control, braking, electrical and signaling systems on railway trains also rely on copper and copper alloys to work. In addition, the electrification of railways has created a large demand for copper and copper alloys. Copper is required for wiring, hydraulic, cooling and pneumatic systems in the aircraft, aluminum bronze tubes are used for bearing retainers and landing gear bearings, and antimagnetic copper alloy is used for navigation instruments.

Mechanical and metallurgical industry:

In addition to the large amount of copper used in motors, circuits, hydraulic systems, pneumatic systems and control systems, mechanical engineering also requires various transmission parts and fixing parts, such as cylinder liners, connectors, fasteners, gears, twisting parts, etc. Use copper or copper alloy to reduce wear and lubricate.
The key component in the continuous casting technology of metallurgical equipment, the crystallizer, is mostly made of high-strength and high thermal conductivity copper alloys such as chromium copper and silver copper. The vacuum arc furnace and electroslag furnace water-cooled crucible in electrometallurgy are made of copper pipes. , various induction heating induction coils are wound with copper tubes or special-shaped copper tubes, with water cooling inside.

Light industry:

• Copper and copper alloys can be used to manufacture heat exchangers for air conditioners, clock movements, mesh cloths for paper machines, rollers, printing copper plates, fermentation tank linings, distillation pots, building decoration components, etc.

Emerging industries and high-tech fields:

• Copper is also used in emerging industries and high-tech fields, such as cladding of superconducting alloys, containers and pipelines for ultra-low temperature media, cooling inner villages of rocket engines, and magnet windings of high-energy accelerators.