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Zinc-white copper wire is an alloy material composed of copper, nickel and zinc, with a beautiful silver-white appearance and excellent physical properties.
DETONG's White Copper Wire is a high-quality copper alloy wire known for its exceptional electrical conductivity and corrosion resistance. It is commonly used in a wide range of applications where reliable performance is essential. With excellent mechanical properties and superior surface finish, this wire is an excellent choice for industries such as electronics, telecommunications, and electrical engineering. Whether you're looking for durable wire for low-voltage applications or more advanced uses, DETONG's White Copper Wire provides a versatile and reliable solution.
Product Description
Zinc-nickel silver wire is a copper-nickel-zinc alloy wire manufactured using copper, nickel, and zinc as primary raw materials. Produced in strict accordance with the GB/T 4423 national standard, it undergoes precise alloying, high-temperature melting, multi-stage wire drawing, and precision polishing and annealing. Key grades include BZn18-18, BZn15-20, and C7541. The wire features a uniform, lustrous silver-white metallic finish and a smooth texture, free from oxidation spots, cracks, or burrs; unlike standard pure copper or brass wires, it combines metallic toughness with the unique properties of a specialized alloy.
Optimized through dual hot and cold plastic processing, the material boasts a dense, uniform microstructure free of internal porosity or impurities, ensuring stable and controllable electrical resistance. It is available in soft, half-hard, and hard tempers to meet specific customer requirements and is suitable for various secondary processing techniques such as bending, stamping, drawing, and welding. This high-end alloy wire is ideal for applications in precision electronics, instrumentation, mechanical components, and decorative crafts.
1. Superior Appearance and Finish: The wire surface undergoes mirror polishing and fine finishing, resulting in a uniform, bright white luster comparable to pure silver. It resists yellowing and fading over long-term use, offering high aesthetic appeal and distinctiveness, making it suitable for the exterior finishing of high-end crafted products.
2. Stable Material Structure: Engineered with a precise alloy composition, the material features a uniform blend of copper, nickel, and zinc. It boasts a fine, dense grain structure free from internal defects such as porosity or segregation. The wire offers high dimensional accuracy and strict tolerance control, ensuring uniform thickness and excellent straightness throughout the entire length.
3. Versatile Performance: Soft-temper wire offers exceptional ductility, allowing for easy bending and winding without deformation. Hard-temper wire provides high strength and deformation resistance, along with superior elasticity—outperforming standard tin-bronze wire—making it ideal for manufacturing various elastic components.
4. Comprehensive and Precise Specifications: Customization is available across the full spectrum, from ultra-fine filaments to standard industrial-grade thick wires. The product features minimal diameter deviation and a high-quality surface finish—free from scratches and oil residue—meeting the processing requirements for both precision micro-components and large-scale industrial parts.
5. Strong Anti-Interference Capability: It offers excellent electromagnetic shielding performance, effectively blocking external electromagnetic interference to ensure the operational stability of electrical components and precision instruments. It is a preferred conductive wire choice for low-voltage systems and precision circuitry.
1. Superior Corrosion and Oxidation Resistance: Compared to standard copper or brass wire, this nickel-zinc-copper alloy wire offers significantly enhanced resistance to acids, alkalis, humidity, and salt spray. It resists oxidation and rusting in humid, outdoor, or corrosive environments, boasting a service life 2–3 times longer than ordinary copper wire and making it ideal for long-term use in harsh conditions.
2. Stable and Reliable Electrical Performance: It features uniform and stable electrical resistance and balanced conductivity, resulting in low power loss and minimal heat generation. It maintains excellent power stability under high loads without issues such as resistance drift or conductivity anomalies, making it perfect for precision electrical components and high-load conductive parts.
3. Excellent Processing Characteristics: With outstanding performance in both hot and cold working, it easily undergoes processes such as drawing, stamping, bending, cutting, and winding. It offers excellent formability, resists breakage and spring-back deformation, and minimizes processing waste—thereby boosting production efficiency and suiting various precision deep-processing applications.
4. Outstanding Cost-Performance Ratio: It delivers performance comparable to high-end pure nickel-copper alloy wires but at a lower production cost, serving as an ideal substitute for pricier nickel-copper alternatives. It effectively reduces procurement and production costs for enterprises without compromising product quality or performance.
5. High-Temperature and Aging Resistance: The alloy material excels in high-temperature environments, resisting softening, deformation, and aging. It maintains stable mechanical strength and electrical performance, making it suitable for specialized applications such as high-temperature equipment, automotive systems, and aerospace components.
| White Copper alloy series composition,%max | |||||||
| Type | Cu+Ag（%） | Pb（%） | Fe（%） | Ni+Co（%） | Mn（%） | Zn（%） | Other（%） |
| C71000 | Other | 0.05 | 0.5-1.0 | 19.0-23.0 | 1 | 1 | - |
| C70400 | Other | 0.05 | 1.3-1.7 | 4.8-6.2 | 0.3-0.5 | 1 | - |
| C70800 | Other | 0.05 | 0.1 | 10.5-12.5 | 0.15 | 0.2 | - |
| C75200 | Other | 0.05 | 0.1 | 10.5-12.5 | 0.15 | 0.2 | Other |
| Low nickel white copper | 59.0-60.0 | ≤0.009 | ≤0.3 | 5.0-6.0 | - | - | - |
| BZn8-30 | 58.0-59.0 | ≤0.009 | ≤0.3 | 6.5-7.2 | - | - | - |
| BZn8-25 | 60.0-61.0 | ≤0.009 | ≤0.3 | 6.8-7. 5 | - | - | - |
| BZn10-25 | 60.0-61.0 | ≤0.009 | ≤0.3 | 8. 5-9.3 | - | - | - |
| BZn12-23 | 60.0-61.0 | ≤0.009 | ≤0.3 | 11.0-11.8 | - | - | - |
| BZn15-20 | 61.0-62.0 | ≤0.009 | ≤0.3 | 13.5-14.3 | - | - | - |
| BZn18-20 | 61.0-62.0 | ≤0.009 | ≤0.3 | 16.5-17.3 | 0.2-0.3 | - | - |
| BZn18-18 | 61.0-62.0 | ≤0.009 | ≤0.3 | 18.0-18.6 | 0.2-0.3 | - | - |
| BZn22-18 | 60.0-61.0 | ≤0.009 | ≤0.3 | 20.5-21.3 | 0.3-0. 35 | - | - |
| BZn25-18 | 56.0-57.0 | ≤0.009 | ≤0.3 | 23.5-24.3 | 0.35-0.4 | - | - |
1. Main Grades: BZn18-18, BZn15-20, C7541, C75400; compliant with national standards, with verifiable chemical composition.
2. Wire Diameter Range: 0.05mm – 12.0mm; custom specifications (ultra-fine or extra-thick) available; diameter tolerance within ±0.01mm.
3. Material Temper: Soft (O), Half-hard (1/2H), and Hard (H); customizable upon request.
4. Surface Finish: Polished; oxidation-free and burr-free.
5. Core Composition: Copper 62.0%–65.0%, Nickel + Cobalt 17%–19%, Zinc (balance); impurity levels strictly controlled.
6. Performance Parameters: Stable electrical conductivity, excellent elasticity, resistance to salt spray, acids, and alkalis; tensile strength and elongation meet national industrial standards.
7. Packaging: Spools, coils, or straight cut-to-length bars; custom cutting lengths available.
● Excellent Cold Processing Performance:
The white copper wire and rod are designed for exceptional cold processing capabilities, allowing for easy shaping, bending, and forming without compromising material integrity. This makes them ideal for intricate designs and precise manufacturing processes.
● Accurate Tolerance Dimensions:
Both the white copper wire and rod are produced with high precision to ensure consistent and accurate tolerance dimensions. This level of accuracy ensures that the components fit perfectly in their intended applications, minimizing errors during installation and use.
● Physical properties:
Zinc-white copper wire has good electrical conductivity and corrosion resistance. Its electrical conductivity is slightly lower than that of pure copper, but it is still an excellent conductive material. It can resist environmental erosion such as oxidation and salt water corrosion, so it can maintain stable electrical properties in humid and corrosive environments. In addition, zinc-white copper wire can withstand pressure processing well in both hot and cold states, and has good plasticity and elasticity, but poor cutting and welding properties.
Thanks to a combination of advantages—including corrosion resistance, high elasticity, stable electrical conductivity, an attractive appearance, and electromagnetic interference (EMI) resistance—nickel-silver wire is ideally suited for high-end precision manufacturing across various industries. Key application areas include:
1. Electronics and Electrical Industry: Widely used for core components such as precision connectors, switch contacts, potentiometer wipers, lead frames, crystal oscillator housings, resistive elements, low-current wiring, and cable shielding.
2. Precision Instruments: Suitable for elastic instrument components, Bourdon tubes, sensor parts, and precision conductive structural elements, ensuring measurement accuracy, operational stability, and strong resistance to environmental interference.
3. Mechanical Hardware: Used to manufacture high-precision springs, contact springs, bearings, small gears, and fasteners; its high elasticity, strength, and wear resistance extend the service life of these hardware components.
4. Aerospace, Automotive, and Energy: Utilized for high-temperature automotive structural parts, lightweight aerospace fasteners, conductive components for new energy equipment, and heavy-duty electrical connection assemblies.
5. Decorative Arts and Consumer Goods: Prized for its premium silvery-white finish, it is widely used in the manufacture of high-end jewelry, eyeglass frames, musical instrument accessories, metal crafts, tableware, and precision writing instruments.
6. Medical and Telecommunications Equipment: Suitable for high-precision, high-reliability applications such as medical instrument components, conductive elements for telecommunications equipment, shielding parts, and moisture/corrosion-resistant structural components.
Protective Packaging: Cables are wrapped in a waterproof film, with the outer layer reinforced by sturdy cardboard cartons and waterproof stretch wrap. Precision-specification cables are individually spooled and isolated to prevent friction scratches, crushing, deformation, moisture damage, or oxidation during transit, ensuring they arrive in perfect condition. Customization options are available for all products, including individual packaging, custom labeling, and cutting to specific lengths.
Shipping and Delivery: High-volume orders are prioritized for production. Comprehensive after-sales support is provided throughout the process.
Electronic Component Manufacturer (Bulk Procurement): We have a long-standing partnership involving this nickel silver wire; the material is exceptionally stable with uniform resistance and excellent conductivity, resulting in a very low defect rate for the switch contacts and connector components we manufacture. The wire surface is smooth and burr-free, resists breakage during bending, and offers corrosion resistance far superior to standard copper wire—showing no oxidation or discoloration even after months of use in a humid workshop environment. It offers great value for money, and we will continue to purchase it.
Precision Instrument Manufacturer: The custom semi-hard grade offers high dimensional precision with minimal wire diameter deviation and elasticity parameters that fully meet specifications, making it ideal for instrument contact springs and sensor components. It offers stable forming characteristics with minimal spring-back and high finished-product accuracy, meeting the rigorous standards required for precision instruments. The supplier offers fast shipping, a comprehensive range of specifications, and efficient customization services.
Crafts and Jewelry Manufacturer: This nickel silver wire features a premium silvery-white finish with uniform, brilliant luster, allowing it to be used directly for visible jewelry components without the need for secondary polishing. It does not yellow or fade during long-term storage; it offers a look and feel similar to silver jewelry but at a lower cost. Its excellent plasticity during bending and shaping makes it convenient for creating various intricate designs, making it a preferred material for high-end jewelry manufacturing.
Hardware Spring Manufacturer: The wire features uniform hardness and meets all elasticity and strength standards. Precision springs and contact springs made from this material exhibit excellent fatigue resistance, resisting deformation or breakage during repeated use. With superior wear and corrosion resistance, the finished products enjoy a significantly extended service life, effectively reducing post-sales failure rates while ensuring reliable, consistent quality.
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Q1: What is the main difference between white copper wire and traditional copper wire?
A1: White copper wire contains a combination of copper, nickel, and zinc, which enhances its strength and corrosion resistance compared to traditional copper wire. This makes it suitable for use in more demanding applications.
Q2: What industries commonly use white copper wire?
A2: White copper wire is used in electronics, telecommunications, electrical engineering, automotive, and medical industries, among others.
Q3: Can the wire be customized according to specific requirements?
A3: Yes, DETONG offers customizable diameters and lengths to suit different needs.
Q4: What packaging options are available for the white copper wire?
A4: The wire can be packaged in standard export cartons, pallets, or crates depending on the order size.
