Copper Wire

Your Professional Copper Wire Supplier

Tianjin Kun Yu Technology Co., Ltd. is one of the leading steel exporters in China. The company specializes in exporting a wide range of steel products, including steel pipes, steel plates, carbon steel, galvanized steel, stainless steel, aluminum steel, and steel profiles. These products are primarily utilized in various sectors of the national economy, such as the chemical industry, machinery, construction, public utilities, shipping, oil, and others.

Customized Services

With over a decade of experience in the manufacturing and R&D of steel products, we offer comprehensive customization services for a variety of materials to meet specific customer requirements.

High-Quality Products

Our factory employs state-of-the-art production processes and advanced technology to ensure the superior quality of our products.

High Productivity

Equipped with cutting-edge production facilities and a highly skilled technical team, we guarantee efficient production to meet customer demands promptly.

Excellent After-Sales Service

We provide exceptional after-sales service, addressing customer complaints and resolving issues effectively to ensure customer satisfaction.

Parameter

Conductor	Round 99.9% pure copper rod
Size	0.10-3.00mm, AWG 9-38, Swg ll~Swg 42
Elongation	≥15%
Tensile strength	130Mpa~150Mpa
Thermal class	130C~220C

Advantages of Copper Wire

Excellent Electrical Conductivity

Copper is one of the best conductors of electricity, second only to silver. Its high conductivity ensures minimal energy loss during power transmission, making it ideal for both low-voltage and high-voltage applications. This efficiency leads to lower energy costs and better performance in electrical systems.

Durability

Copper wire is known for its long-lasting durability. It can withstand harsh environmental conditions, including high temperatures and moisture, without degrading quickly. This makes copper wire suitable for both indoor and outdoor applications, as well as in demanding industrial settings.

Malleability and Flexibility

Copper is highly malleable, meaning it can be easily bent, twisted, or shaped without breaking. This flexibility is particularly useful in electrical installations, as it allows copper wire to fit into tight spaces and be routed around obstacles easily.

Corrosion Resistance

Copper is naturally resistant to corrosion, especially when used in its tinned form. This helps extend the lifespan of copper wiring, even when exposed to moisture or outdoor conditions, making it a reliable choice for long-term applications.

Recyclability

Copper is 100% recyclable, and its properties do not degrade when recycled. This makes copper wire an environmentally friendly option, contributing to sustainable practices in industries that rely heavily on electrical components.

Applications of Copper Wire

01/

Electrical wiring
In order to create power, copper wire is most frequently utilised in residential and commercial structures. The production of electrical wire consumes around half of the copper that is mined.

02/

Industrial machinery
Copper wires are utilised in a variety of industrial settings, including robotics, mining, building railway infrastructure, building homes and businesses, industrial heating, and watercraft applications.

03/

Power generation
Electrical cables in power generation systems include copper wires.

04/

Telecommunications
Copper cables are still used for High Digital Subscriber Lines (HDSL) and Asymmetrical Digital Subscriber Lines even though fibre optic is supplanting them in the telecommunications sector (ADSL).

05/

Automobile industry
Applications for copper wire in the automotive sector include busbars for EV battery interconnects, airbags, battery cables and charging stations, shielding materials, and aftermarket electrical components.

06/

Aerospace
Copper wire is frequently utilised in aircraft applications such airframe wiring, in-flight entertainment, cabin management systems, and more because of its value as a thermal and electrical conductor.

Copper Wire Surface Coating

Nickel-plated

The so-called nickel-plated copper wire, that is, a layer of nickel metal is plated on the surface of the copper wire. After this kind of process, the temperature and conductivity of the whole metal will not change much, and the big difference is that when exposed to the air for a long time, the stability of the copper wire after nickel plating will be much stronger. At the same time, because the nickel metal itself has a strong passivation ability, so after the surface of the copper wire nickel plating, the hardness of the whole metal will increase, acid and alkali corrosion resistance, anti-wear performance, have a very good promotion, the entire copper wire can adapt to environmental changes will become stronger.

Silver-plated

This kind of copper wire, that is, a layer of silver is plated on the surface of the copper wire. After silver plating on the surface of the copper wire, it can effectively reduce the possibility of the copper wire being oxidized in the air to form a layer of molybdenum green. At the same time, the copper wire itself has poor conductivity. After the silver layer is plated on the surface, the possibility of oxidation reaction can be reduced and the heat dissipation performance of the whole copper wire can be improved. At the same time, it can also prevent the rubber in the insulation layer of the copper wire from sticking and becoming brittle, and improve the weldability of the entire copper wire.

Guide For Ordering Products

A user need provide the following information while placing order
● Product designation (steel plates or strips)
● Product standard number
● Steel grade
● Product specification and size accuracy (incl. thickness, width and length)
● Edge status
● Surface quality level
● Flatness accuracy
● Type, coating weight and surface treatment in case of coated products
● Surface structure in case of hot dip galvanized products
● Weight
● Packing method
● Application
● Other special requirements

Packaging and Shipping

Packaging

Standard export package,suit for all kind of transport,or as required.

Shipping

Transported by DHL, UPS, EMS, Fedex, SF, by Air, by Sea.

According to customer requirements

Our Factory

Tianjin Kun Yu Technology Co, Ltd. is located in Beichen District, Tianjin, China, is a production and trading integrated enterprise, focusing on the field of steel materials. Our steel plant covers an area of 150,000 square meters, with spacious production workshops and advanced storage facilities, the plant covers an area of 128 employees, and builds a well-structured, professional and complementary team structure.

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Our Certificate

FAQ

Q: Can copper wire be easily bent and shaped?

A: Yes, copper wire is highly ductile and malleable, which means it can be easily bent and shaped. This property makes it suitable for a variety of applications where it needs to be formed into different shapes, such as in the winding of coils for transformers and inductors.

Q: How is copper wire manufactured?

A: Copper wire is typically manufactured through a process called drawing. First, copper rods are heated and then drawn through a series of dies to reduce their diameter and increase their length. This process can be repeated to achieve the desired wire diameter. For insulated wires, the insulation is added after the wire is drawn.

Q: What is the melting point of copper wire?

A: The melting point of pure copper is approximately 1083.4°C. However, the melting point of copper wire may vary slightly depending on the presence of any alloying elements or impurities.

Q: How is the surface of copper wire treated to prevent corrosion?

A: The surface of copper wire can be treated with various methods to prevent corrosion. One common method is to apply a thin layer of a protective coating, such as a varnish or a metal - based coating like tin or zinc. Another way is to store the copper wire in a dry environment to minimize exposure to moisture, which can cause corrosion.

Q: How should copper wire be maintained?

A: Regular inspection of copper wire is important to check for any signs of damage, such as fraying, cracking of the insulation, or discoloration. If the wire is in a damp environment, measures should be taken to prevent corrosion. Any connections using copper wire should be checked for tightness to avoid loose connections, which can cause overheating.

Q: What are the precautions for installing copper wire?

A: When installing copper wire, it is important to ensure that the wire is properly sized for the electrical load it will carry. The wire should be installed in a way that prevents it from being damaged by mechanical stress, such as being pinched or bent too sharply. It should also be protected from moisture and corrosive substances. Additionally, proper grounding and insulation must be maintained to ensure safety.

As one of the leading copper wire manufacturers and suppliers in China, we warmly welcome you to wholesale cheap copper wire from our factory. All customized steel products are with high quality and competitive price. For free sample, contact us now.