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Phosphor Bronze Wire, offered by DETONG, is a high-performance alloy composed of copper, tin, and phosphorus, with potential minor inclusions of other elements like zinc. This specialized wire boasts exceptional corrosion resistance, mechanical properties, and durability, making it ideal for a variety of industrial applications. With precision manufacturing, DETONG ensures a consistent product that performs under extreme conditions. From electrical equipment to automotive manufacturing, the versatility of phosphor bronze wire is unmatched, providing both strength and flexibility for demanding industries.
Specifications (mm): Customizable.Product Description
| Phosphor bronze alloy series composition,%max | |||||||
| Type | Cu（%） | Pb（%） | Fe（%） | Zn（%） | P（%） | Ni（%） | Sn（%） |
| QSn6.5-01 | Other | 0.02 | 0.05 | 0.3 | 0.10-0.25 | 0.2 | 6.0-7.0 |
| QSn4-0.3 | Other | 0.05 | 0.1 | 0.3 | 0.03-0.35 | 0.2 | 3.5-4.9 |
| QSn4-4-4 | Other | 3.5-4.5 | 0.05 | 3.0-5.0 | 0.03 | 0.2 | 3.0-5.0 |
| C51000 | Other | 0.05 | 0.01 | 0.3 | 0.03-0.35 | 0.3 | 3.5-5.0 |
| C54400 | Other | 3.5-4.5 | 0.1 | 1.5-4.5 | 0.01-0.5 | 0.2 | 3.5-4.5 |
| C51900 | Other | 0.2 | 0.05 | 0.3 | 0.1-0.25 | 0.2 | 6.0-7.0 |
This series of phosphor bronze wires is a high-precision copper-tin-phosphorus alloy wire. Using high-purity electrolytic copper as the base material, it precisely proportions tin and phosphorus as core alloying elements. It is processed through multiple modern processes including vacuum deoxidation, continuous wire drawing, precision annealing, and fine polishing. The products strictly adhere to national and international alloy standards, featuring a dense and uniform grain structure free from porosity, inclusions, cracks, and other processing defects. The wire body is smooth and rounded, with uniform thickness and a clean surface free of burrs and oxide spots. Leveraging the corrosion-resistant strengthening effect of tin and the deoxidizing and grain-refining advantages of phosphorus, the wire combines high elasticity, high wear resistance, fatigue resistance, low magnetism, and stable conductivity, distinguishing it from ordinary pure copper and brass wires. Its comprehensive performance advantages are outstanding, making it a core precision wire in precision electronics, machinery manufacturing, electrical communications, and corrosion protection engineering, suitable for high-precision, high-load, and long-cycle industrial applications.
● High strength and hardness: Phosphor bronze wire can further adjust its strength and hardness through heat treatment and cold processing to meet different mechanical performance requirements.
● Good toughness and plasticity: Phosphor bronze wire is easy to process and form, and is suitable for the manufacture of various parts and components.
● Excellent corrosion resistance: Phosphor bronze wire can still be used for a long time without being affected under harsh environmental conditions.
● Density: High density.
● Melting point: Good thermal conductivity, suitable for applications requiring excellent heat dissipation characteristics.
● Tensile strength: Shows good strength characteristics and can withstand moderate tensile stress. In general, phosphor bronze wire plays an important role in many industrial fields due to its excellent mechanical properties and corrosion resistance, and its application range is still expanding.
1. Ultra-high elasticity, fatigue resistance, and long service life: Phosphor bronze alloy has been treated with a special quenching and tempering process and has excellent elastic limit. It is not easy to deform, relax, or break after repeated bending, stretching, and rebound. It can withstand tens of thousands of high-frequency reciprocating operations, and its fatigue resistance performance far exceeds that of ordinary copper wires. The performance is stable under long-term dynamic working conditions and there is no elastic attenuation problem, which greatly reduces the frequency of equipment parts replacement and reduces equipment operation and maintenance costs.
2. Wear-resistant and corrosion-resistant, suitable for complex working conditions: The tin element in the alloy composition greatly improves the weather resistance and wear-resistance of the wire, with moderate surface hardness and extremely low friction loss. It also has excellent resistance to atmospheric corrosion, seawater salt spray, and moisture oxidation resistance. It is not afraid of complex and harsh environments such as high temperature, high humidity, coastal areas, and slight acid and alkali corrosion. It is not prone to oxidation, blackening, rust, and damage after long-term use, and is suitable for outdoor and special industrial scenarios.
3. Stable electrical and thermal conductivity, excellent electrical performance: After deoxidation and purification process, there are very few impurities inside the wire, the electrical and thermal conductivity is balanced and stable, the resistance is uniform, the voltage drop is stable, and there is no abnormal heating, poor contact and other problems during the power-on process. Compared with stainless steel wires and ordinary alloy wires, it has significant advantages in electrical conductivity, fully meeting the weak current, constant current, and high-precision energization needs of precision electrical equipment.
4. Non-magnetic and easy to process, suitable for precision manufacturing processes: The product has excellent non-magnetic properties, strong resistance to electromagnetic interference, and excellent plasticity and ductility. It can be easily bent, wound, cut, and stamped. It is not easy to crack or break during processing. It is suitable for high-precision production operations such as automated precision processing and micro-accessory shaping, and has a high processing yield rate.
5. The material is pure and environmentally friendly, safe and compliant: The entire process is smelted with environmentally friendly raw materials, lead-free and low in impurities, and the heavy metal content reaches the standard. It complies with industrial environmental testing standards, is non-toxic and harmless, and has no precipitation of pollutants. It can be safely used in civilian electronics, precision instruments, medical supporting equipment and other scenarios that require high material safety.
1. Material Characteristics: Utilizes a national standard high-quality Cu-Sn-P alloy formula, featuring a pure copper matrix, precise tin and phosphorus ratios, fine and uniform grains, and an absence of internal porosity, segregation, and impurities. It exhibits highly stable physical and chemical properties, excellent tensile, compressive, and elongation strength, unaffected by normal temperature and humidity changes.
2. Structural Characteristics: Precise and uniform wire diameter with minimal tolerances. The wire is straight, round, and highly concentric, with a regular, non-eccentric cross-section. The smooth and delicate surface minimizes friction, facilitating smooth threading and winding operations. It is compatible with various precision winding equipment and automated assembly equipment, ensuring extremely high consistency in batch processing.
3. Process Characteristics: Employs a continuous hot drawing + intelligent annealing integrated process, coupled with multi-layer surface anti-oxidation protection treatment. The hardness and softness are controllable, adaptable to different process requirements such as hard springback and soft winding. Finished products are dimensionally accurate and perform uniformly, eliminating batch performance differences and meeting the requirements of standardized and refined industrial production. 4. Functional features: It integrates six core functions: high elasticity, high wear resistance, corrosion resistance, stable conductivity, anti-interference, and easy processing. It can be used as an electrical conductive wire, a precision spring wire, or a wear-resistant and corrosion-resistant structural wire. It is multifunctional and adaptable to the needs of various industrial scenarios, with outstanding cost performance.
At DETONG, quality is paramount. Our phosphor bronze wire undergoes rigorous testing for:
● Tensile Strength: Ensuring the wire meets industry standards for resilience.
● Corrosion Resistance: Subjecting the wire to simulated harsh environments to confirm its durability.
● Surface Finish: Each batch is checked to ensure smooth surfaces free from defects.
● Dimensional Accuracy: All wire dimensions are checked against strict tolerances for consistency and precision.
1. Precision Electronics and Electrical Industry: Widely used in the manufacture of precision connectors, terminals, switch contacts, miniature sensors, relay springs, circuit lead frames, electronic shielding wires, and other accessories. Its stable conductivity and elasticity ensure long-term stable power supply and sensitive contact in electronic equipment.
2. Precision Machinery Manufacturing Industry: Suitable for processing wear-resistant elastic parts such as precision springs, instrument springs, gear washers, miniature bushings, bearing accessories, and valve plungers. Its high fatigue resistance and low wear characteristics ensure accurate, stable, and low-failure operation of precision machinery.
3. Communication and Instrumentation Equipment: Used for internal wiring in communication equipment, signal lines in precision instruments, elastic accessories in testing equipment, and conductive springs in smart home devices. Its non-magnetic anti-interference characteristics effectively avoid electromagnetic signal interference, improving the accuracy of equipment testing and signal transmission.
4. Marine Engineering and Corrosion Protection: Suitable for marine instrument accessories, marine communication cables, and fixed conductive cables for coastal outdoor equipment. Its resistance to salt spray and seawater corrosion makes it perfectly suited for the highly corrosive conditions of the ocean, solving the problem of ordinary cables easily corroding and failing.
5. Handmade cultural and creative products and precision processing: It can be used for precision hand-winding, high-end jewelry accessories, and the production of elastic structures for miniature craft ornaments. The thread has a delicate texture, is not easily deformed or oxidized, and the finished product is exquisite and durable, making it suitable for high-end fine processing scenarios.
This product line offers a complete range of specifications, covering ultra-fine diameter to standard industrial large diameter wires. We support both standard in-stock supply and custom-made non-standard products. The hardness/softness can be adjusted as needed. Key specifications are as follows:
1. Mainstream Grades: QSn6.5-0.1, C5191, C5210, QSn10-0.3, etc. (GB/US standard phosphor bronze alloys)
2. Standard Wire Diameters: 0.1mm, 0.2mm, 0.3mm, 0.5mm, 0.8mm, 1.0mm, 2.0mm, 3.0mm, 4.0mm, 6.0mm, 8.0mm
3. Wire Hardness: Soft (M), Semi-hard (Y2), Hard (Y), etc. Suitable for various processing requirements such as winding, springback, and stamping.
4. Core Performance: Tensile strength 250-850MPa, elastic limit up to 600MPa, conductivity ≥15%IACS, elongation ≥3%, hardness 180-240HV
5. Surface Treatment: Original color, free from oxidation, oil, and scratches.
6. Tolerance Standards: Industrial precision tolerance ±0.01mm, ultra-fine wire diameter tolerance controllable ±0.005mm, suitable for high-precision machining.
7. Material Composition: Tin content 6.0%-10.0%, phosphorus content 0.10%-0.35%, total impurities ≤0.2%, high material purity.
DETONG is a leading manufacturer known for producing top-quality phosphor bronze wire. With over 10 years of experience in the industry, we are committed to excellence in every product. Our advanced production facilities, stringent quality control processes, and reliable customer support ensure that you receive the best value for your investment. Whether you need standard wire or a custom solution, DETONG is the trusted partner for your wire requirements.
1. Precision Electronics Manufacturer: "We've been a long-term supplier of C5210 phosphor bronze wire. The wire diameter tolerance is extremely small, and the performance of each batch is consistently excellent. It has stable conductivity and good resilience. Used for equipment switch springs and connector components, it doesn't loosen or deform even under high-frequency use. Its fatigue resistance far surpasses that of ordinary copper wire we used before, significantly improving product yield. We are a stable, long-term supplier."
2. Precision Machining Plant: "This phosphor bronze wire has a perfect balance of hardness and elasticity, excellent wear resistance. After being processed into miniature springs and bushing components, the wear during equipment operation is extremely low. Even under long-term high-load operation, it won't jam or fail. Its corrosion resistance is also excellent; after more than six months of outdoor use, there has been no oxidation or rust. It offers excellent value for money."
3. Marine Engineering Purchaser: "We specifically purchase components for marine equipment used in coastal environments, adaptable to salt spray and high humidity conditions." "Extremely strong, compared to ordinary copper and brass wires, this phosphor bronze wire will not rust or corrode at all, has stable conductivity, is non-magnetic and does not interfere with equipment signals, fully meets the usage standards for special maritime working conditions, and is very reliable." 4. Automated processing users: "The wire surface is exceptionally smooth and regular, without burrs or oxidation points, making threading and winding exceptionally smooth. It is compatible with high-speed processing of automated equipment, without jamming or wire breakage. Its softness and hardness precisely match processing requirements, resulting in high product consistency and significantly improving production efficiency, saving time and labor." 5. Precision instrument manufacturers: "The wire material is pure, with few impurities and uniform resistance. It does not heat up or interfere with signals during power-on. Used for internal signal lines and flexible conductive components in precision instruments, it provides stable equipment detection accuracy, has a long service life, and fully meets the production standards of high-end precision equipment, making it a worthwhile long-term purchase."
1. What are the primary applications of phosphor bronze wire? Phosphor bronze wire is used in electrical components, automotive parts, bearings, fasteners, and other industrial applications requiring high strength, corrosion resistance, and electrical conductivity.
2. Can the wire be customized? Yes, we offer customizable diameters and lengths to meet your specific needs.
3. How is the wire tested for quality? The wire undergoes tests for tensile strength, corrosion resistance, and surface finish to ensure it meets the highest standards.
4. What is the lead time for bulk orders? Lead time varies depending on the order volume but typically ranges from 2 to 4 weeks.
5. Is there a minimum order quantity (MOQ)? Yes, there is a minimum order quantity, which can be discussed with our sales team.
