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Detailed size range
The wire diameter specification range of C52100 copper wire is as follows:
Conventional wire diameter: 0.1mm to 5.0mm. For example, common wire diameters in the market include 0.1mm, 0.2mm, 0.3mm, 0.5mm, 1.0mm, 2.0mm, 3.0mm, 5.0mm, etc.
Special specifications: Thinner wire diameters (such as 0.01mm, 0.02mm, etc.) or thicker wire diameters (such as Φ5mm or more) can be provided, but they need to be customized according to specific needs.
International standards
The main international standards for C52100 copper wire are:
ASTM B159/B159M-17: This standard clearly specifies the chemical composition, mechanical properties, dimensional tolerances and test methods of C52100 phosphor bronze wire, covering round, flat and other shaped wires.
ASTM B103/B103M-2015: Although it is mainly for copper strip, some parameters (such as material composition) are consistent with the wire standard.
Other reference standards: Some suppliers may combine GB/T 3953 (Chinese national standard) or RoHS directive (environmental protection requirements) for quality control.
Chemical composition:
Copper (Cu): balance (usually ≥92%)
Tin (Sn): 6.0%~9.0%
Phosphorus (P): 0.1%~0.35%
Lead (Pb): ≤0.02%
Iron (Fe): ≤0.05%
Aluminum (Al): ≤0.002%
Zinc (Zn): ≤0.2%
Other impurities (such as silicon, antimony, bismuth, etc.): total ≤0.15%
Mechanical properties (state description):
Soft state (annealed state):
Tensile strength (σ<sub>b</sub>): 360～470 MPa
Yield strength (σ<sub>0.2</sub>): 230～270 MPa
Elongation (δ): ≥33%
Hardness (HV): 75～80
Hard state (cold worked state):
Tensile strength (σ<sub>b</sub>): 860～1035 MPa
Yield strength (σ<sub>0.2</sub>): up to 552 MPa
Elongation (δ): ≤5% (plasticity significantly reduced in hard state)
Hardness (HV): 190～210
Other states (such as 1/4 hard, 1/2 hard, etc.):
Tensile strength range: 510～930 MPa, increasing with the degree of work hardening.
Key features:
Wear resistance and friction reduction: Due to the presence of tin and phosphorus, the friction coefficient is low (0.0125 when lubricated), suitable for wear-resistant parts such as bearings and sleeves.
Corrosion resistance: Excellent performance in the atmosphere, fresh water and sea water.
Cold processing performance: It can be strengthened by cold pressure processing, but it is easy to become hot brittle during hot processing.
Electrical conductivity/thermal conductivity: The thermal conductivity is about 54.4 W/(m·K), and the electrical conductivity is moderate.
Welding performance: Supports soldering, copper welding, and arc welding, but submerged arc welding and electroslag welding have poor results.
Production process and product advantages of C52100 copper wire:
Production process
Basic process:
C52100 copper wire production uses copper rod as raw material, and the main process includes:
Stretching: Multiple stretching through a large drawing machine to gradually reduce the wire diameter.
Annealing: Intermediate annealing treatment (temperature 500-680℃) to eliminate work hardening and improve ductility.
Wire drawing and inspection: The wire diameter is refined by a multi-head wire drawing machine, and unqualified products are eliminated through quality inspection.
Winding/tinning: The finished product is wound or tinned (adding flux) to improve welding performance.
Process optimization:
Annealing temperature control (such as 280℃ stress relief annealing) can significantly improve elongation and bending performance and reduce the risk of cracking.
Use precision processes such as centrifugal casting to ensure material density and wear resistance (such as super phosphor bronze project).
Product Advantages
High Strength and Wear Resistance:
The addition of tin (7-9%) and phosphorus (0.1-0.25%) significantly improves the strength (tensile strength 360-1035 MPa) and elastic limit, and is suitable for high-load wear-resistant scenarios such as bearings and gears.
The friction coefficient is as low as 0.0125 (with lubrication), which is suitable for sliding parts.
Corrosion Resistance:
It exhibits excellent corrosion resistance in the atmosphere, fresh water and seawater, and is suitable for marine engineering and chemical equipment.
Conductivity and Processing Performance:
Good conductivity (thermal conductivity 54.4 W/m·K), suitable for electrical contacts, spring elements, etc.
Easy cutting, good hot and cold processing performance, supports complex forming such as stamping and bending.
Welding Adaptability:
Soldering, arc welding, and copper welding can be performed, but submerged arc welding and electroslag welding should be avoided.
Economical and environmentally friendly:
Compared with beryllium copper, it has no toxicity risk and is lower in cost; it is superior to brass in strength, corrosion resistance and stress relaxation properties
Q1:Do you provide samples? Is it free or extra?
A1:Yes, we can provide samples free of charge and the customer will pay the freight.
Q2:What if I don't have export experience ?
A2:We have reliable forwarder agent which can ship items to you by sea/air/Express to your doorstep. Any way, we will help you choose the most suitable shipping service.
Q3:How long is your lead time?
A3:If it is in stock, it is usually 5-10 days. Or, if there is no inventory, 15 days, depending on the quantity.
Q4:What are your terms of payment?
A4:30% T/T deposit in advance, 70% T/T balance within 5 days after B/L copy, 100%.Irrevocable L/C at sight, 100% Irrevocable L/C after receive B/L 30-120 days, O/A.
Q5:How is your technical support?
A5:We provide lifetime online support through Whatsapp/ Skype/ Wechat/ Email. Any problem after delivery, we will offer you call anytime.
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